BitcoinUniversity
Matthew Kratter

www.bitcoinuniversity.com

Bitcoiner

Public Key

npub1s33sw6y2p8kpz2t8avz5feu2n6yvfr6swykrnm2frletd7spnt5qew252p

NIP-05 Address

Profile Code

nprofile1qqsggcc8dz9qnmq399n7kp2yu79fazxy3ag8ztpea4y3lu4klgqe46qpr3mhxue69uhksmm5wf5kw6r5dehhwtnwdaehgu339e3k7mgpramhxue69uhkc6tzwfjhyetvv9ujuctpwfhku6t4d45kjtnrdaksde8z8a

Publishing to

hotrightnow.nostr1.com

librerelay.aaroniumii.com

Author Public Key

npub1s33sw6y2p8kpz2t8avz5feu2n6yvfr6swykrnm2frletd7spnt5qew252p

Show more details

Last Notes

2026-05-07 15:48:26 CEST

Bitcoin Hashers vs. Bitcoin Miners
https://blossom.primal.net/50c8ce503aa45ffa3cf0e450b7a735b800140f0eb079c4b31d067bfe8c736018.mp4

2026-05-06 15:52:46 CEST

Shitrea Scammers Launch Shipcoin
https://blossom.primal.net/b55a875c9ef4ddbd0f77277bf5f4c601b796bba279d3d5595c56d429e8d99e14.mp4

2026-05-05 15:44:36 CEST

Bitcoin Home Mining Update (New Experiment)
https://blossom.primal.net/272713cf86b77dab7e64e34ef234a07632b5a09fb5880a588ae02e0866963686.mp4

2026-05-04 15:18:09 CEST

Will Bitcoin Miners Support BIP-110?
https://blossom.primal.net/af6dec90c0d7329102b6afae915c5399247b4a80dd7d099e141a8d61aedcca5b.mp4

2026-05-03 14:28:44 CEST

Can Bitcoin Survive Low-Integrity Bitcoiners?
https://blossom.primal.net/c7a37b2fa4433215b2b1fe1bfd9e4ef1f18f4118b857253e357215e17cc55186.mp4

2026-04-30 14:06:30 CEST

How Brink Destroyed Bitcoin Core (Hodlonaut, Part 2)
https://blossom.primal.net/bd578270fb4a34affeac7c734bdc92018ac5728ba8647930e9972334b129c586.mp4

2026-04-29 15:25:16 CEST

Bitcoin Home Mining Tax Implications
https://blossom.primal.net/2851539af567de47cf252121bbd8e699fd493b3a351defe4306e1836815e63e3.mp4

2026-04-25 16:12:57 CEST

US Military Using Bitcoin?
https://blossom.primal.net/ccfc0d132319226fcd4959663a73645fd84095a321adec20af1ba58f29fd4f3d.mp4

2026-04-21 19:02:53 CEST

Bitcoin Core 31.0 Released
https://blossom.primal.net/e0cded72e8cd509f1bf71a196c761b9e0e88e4d10e5bfdb65823b50c2e4e150b.mp4

2026-04-20 16:21:27 CEST

Bitcoin Knots Just Keeps Winning (Plus My Rented Hashrate Results)
https://blossom.primal.net/2532eae3277f11631fd4efce4bc159221b2dbc3d91b7a231c4745c55a2e6dd0f.mp4

2026-04-18 16:16:22 CEST

Evil Wizard Wants To Rob Satoshi?
https://blossom.primal.net/181b2894b0a0a4c904a9e028c59aff0c890f4f863a189288448889912fa88fea.mp4

2026-04-17 16:49:07 CEST

Bitcoin Hashrate as a Service (HaaS)
https://blossom.primal.net/1fa3be46e541309af39165aac279d5c93fecb452832f0102913bfe136913aa82.mp4

2026-04-15 16:55:10 CEST

How To Mine Bitcoin From Home Using Start9 (Part 1)
https://blossom.primal.net/c5c1986e24124d436105c1b2ea87ccb457b0ca1b615d0c13fa80c698e7d48480.mp4

2026-04-13 16:14:13 CEST

Why Mine Bitcoin From Home?
https://blossom.primal.net/0d17c0ed4fe7ce05333e5e4f9014d7fae66a33cceecb78205fa8c49ccf084054.mp4

2026-04-11 19:03:52 CEST

Is Adam Back Satoshi Nakamoto?
https://blossom.primal.net/41130cfcc9865720239acf12e118da3e57764e61bd6308f466da9a2219d15b4f.mp4

2026-04-09 17:30:02 CEST

Bitcoin Mining Just Changed Forever
https://blossom.primal.net/f03e193d89d4d2f556052bcbf5eb76f4533ce6da60891b03026c4ac3d08b64bf.mp4

2026-04-08 16:53:59 CEST

How To Buy Bitcoin Hashrate And Mine BIP-110 Blocks From Home
https://blossom.primal.net/c4b5f6ac4d72d393f0fcc406856c01d951567f661d419862f255c579dbb469b4.mp4

2026-04-07 15:13:26 CEST

Run Node, Rent Hash, Mine Blocks (We Win)
https://blossom.primal.net/4a357569e7d910122e7af886aedbe7625e7538a8623e78164c50cee040445b8e.mp4

2026-04-06 14:53:10 CEST

Don't Be A Dumb Hasher (Bitcoin Mining)
https://blossom.primal.net/f42b7c58e9c2186010a95ef5f221cb3cb9342e29eb5d43c084c3e5b62d77de49.mp4

2026-04-04 18:27:18 CEST

Is Bitcoin A Brilliant Scam?
https://blossom.primal.net/2dc54c145e872a502ff729c35e2ac03999c735d36f6e668d71d532418dbf508b.mp4

2026-04-02 17:06:49 CEST

More and More BIP-110 Nodes and Blocks
https://blossom.primal.net/b7bf4cc08ac7c826bfbaf8bad465735197bec4dc2b6c1a35ddf8e11b5d7f4642.mp4

2026-04-01 16:34:07 CEST

Bitcoin's Quantum Computing Threat
https://blossom.primal.net/1463e83e061eade4d119b98ff4b0bfd9c5b9abf3ce1a61f18f8c0f6a487838d1.mp4

2026-03-31 15:13:06 CEST

Square Rolling Out Bitcoin Payments
https://blossom.primal.net/4b7f6fc43423227c687c3650b3d97b063275f9c4e827e26f8c9339be1e76739c.mp4

2026-03-30 14:35:46 CEST

Bitcoin Core's Paramours and Blacklists
https://blossom.primal.net/847c7293fb44902312760d247f6fd1c629b0d217868a2b651648aeac42efb0f9.mp4

2026-03-27 14:38:21 CET

Bitcoin Core On The Brink
https://blossom.primal.net/9ef7d448ae3e6c88160a1da07383a8b5aaf5575c7d062a0e6c3cf45a5392e460.mp4

2026-03-26 15:41:13 CET

Bitcoin Core Panicking Over New Project
https://blossom.primal.net/6fade9e38c217355d5ae677fe6d13bd998a537da997d7e9230280c07c945dd9a.mp4

2026-03-25 16:29:11 CET

More Bitcoin Core Funny Business Revealed (New Jon Atack Interview)
https://blossom.primal.net/82dc8b054bffc71f5e977d8529dc522af59b9365eb644f1f5644074ea00b3615.mp4

2026-03-24 15:18:02 CET

Why Is BIP-110 A Temporary Soft Fork?
https://blossom.primal.net/ebf82340aa3a56560d84c2e1fcd5d70a219ceb1f17d75cfb2c8db8acf49d92c5.mp4

2026-03-23 16:38:11 CET

The Many Dangers Of Bitcoin Loans
https://blossom.primal.net/6477f610b739ada6c28fc8e755d3342fb4456e03d477c92be4490f7da530f6e6.mp4

2026-03-20 14:41:27 CET

Who Hates The BIP-110 Soft Fork?
https://blossom.primal.net/5170896e4b46e19c40f0a42bdc12f007e337a363e90b302c4a0a9754a78a2dba.mp4

2026-03-20 03:13:34 CET

More Bitcoin Core Corruption (New Jon Atack Interview)
https://blossom.primal.net/8fe5cf868ab3d10d9687826e08c6ed15bffe9840af3cdb61719e8e79b95e21d9.mp4

2026-03-18 14:19:09 CET

"The Mempool" Is Collectivist Propaganda
https://blossom.primal.net/47f2cf0d3aa01efb8fedbfcd331093425a348eb2925ab1b56a1a5174875fd902.mp4

2026-03-17 15:09:39 CET

From Shipcoiner To Bitcoin Core Maintainer In Just 2.5 Years
https://blossom.primal.net/6e49c6f71b4fe9e4f7c2537ff0cff8f7d66581dea6d8042d7b49be70256bb9c3.mp4

2026-03-16 17:34:02 CET

Did Jeffrey Epstein Hijack Bitcoin?
https://blossom.primal.net/b2dd666506367af87bb29cba3e4fa2474d899e72d880e40efe055875518f0c46.mp4

2026-03-14 16:55:42 CET

How Governments Rob You Blind (Print, Pump, Tax, Repeat)
https://blossom.primal.net/d1a5e99620591b8704175a6e2d520e4c6812111d5b762ccd32c42f2ef86df85f.mp4

2026-03-13 14:39:46 CET

Can Isabel Foxen Duke Stop Bingeing On Bitcoin Spam?
https://blossom.primal.net/37d0f427784f47abdbf09607394e1e9d747f0131e07032b94ea208e6f1454b7a.mp4

2026-03-12 17:08:02 CET

How BIP-110 Signaling Works
https://blossom.primal.net/2c9f8d7a836cbb3214d14f541de0eb924e478cbbac99bec2596a71498d330f4d.mp4

2026-03-11 14:59:14 CET

Hodlonaut Running BIP-110 (Amazing News)
https://blossom.primal.net/b5e64cc79274f74c3ac09bb764e721749a85d261959753dbb21182965b644df4.mp4

2026-03-10 15:11:16 CET

Bitcoin Security Budget FUD
https://blossom.primal.net/3920997dfaafe0ed02076ee58ff23439782fb1270705b55e9b7d99bf20aebbd3.mp4

2026-03-09 13:21:26 CET

Fake Pubkeys And False Dichotomies (Bitcoin)
https://blossom.primal.net/282ff38a1c05753035da0810a63681fcbf4042b15850e0c7d3099ce457569257.mp4

2026-03-07 16:01:01 CET

Is BIP-110 Being Rushed?
https://blossom.primal.net/7baa759953cb3020f6b72d1689323c6cea7bd4ece2d0f10f53a33d68c6892c17.mp4

2026-03-06 15:24:26 CET

Tracking Bitcoin Spam and BIP-110 Adoption (The Bitcoin Portal)
https://blossom.primal.net/830c0753e4db3ee1ca2c395089b92ce3bcc023678e45a0566987e2eb89e68695.mp4

2026-03-05 14:21:58 CET

Bitcoin Core Really Did Go Rogue
https://blossom.primal.net/01ba035831abb1d1837d5b753403c275c4a2fc7a73c84c497c87ff29e2efbb8f.mp4

2026-03-04 15:43:17 CET

Bitcoin Core Insider Spills The Beans (Jon Atack)
https://blossom.primal.net/b87767b537b33d849a8b1fa6b85a1be9a2c788be9f6640f5dcc7d5755d57ecac.mp4

2026-03-03 16:41:55 CET

Did Satoshi Approve of Bitcoin Spam?
https://blossom.primal.net/17296167980ecdd66f6a50f4e298c1a09740e29ba1ea165114be9c7bbda0f88f.mp4

2026-03-03 16:21:08 CET

Did Satoshi Approve of Bitcoin Spam?
https://blossom.primal.net/17296167980ecdd66f6a50f4e298c1a09740e29ba1ea165114be9c7bbda0f88f.mp4

2026-03-02 17:26:33 CET

First BIP-110 Bitcoin Block Mined
https://blossom.primal.net/f2a7500833911f2daecdfbd956849df8a260ec1a6ac2de765cc8e2f8f82a9fa3.mp4

2026-02-28 15:45:35 CET

How To Play Tone-ing Kruger (Best Bitcoin Game Ever)
https://blossom.primal.net/ae166894054fd4d0bbe44cfc6dbaca5809ed0f01bb9eed48e73ea2ec2cab4e09.mp4

2026-02-26 15:07:59 CET

Making Bitcoin Miners An Offer They Can't Refuse (BIP-110)
https://blossom.primal.net/be4785dcbdf659c3d029334da549247fc64d3e15a9904b9dce3de73a947f4de0.mp4

2026-02-25 16:18:10 CET

Reacting To Matt Odell On BIP-110
https://blossom.primal.net/6c199ed9b455e2e022094b4463e82969d4e5b995c750bca86a7785a14d37c550.mp4

2026-02-24 16:09:39 CET

More Luke Dashjr's, Fewer Peter Todd's (Bitcoin)
https://blossom.primal.net/40357331ed168ba39e6aff69aac8c8f90632c45917ee4e1cce667ccaa5f6ef63.mp4

2026-02-23 16:48:12 CET

Mano A Mano Maxi Matt Mayhem (BIP-110 and Bitcoin Spam)
https://blossom.primal.net/c7b4a1c174f3af9152fe844cc4fa9da4b352e686a9730d3d0782138aa31c9458.mp4

2026-02-22 02:35:25 CET

- reply

I'm not getting paid by anyone or any company, except YouTube which is a pittance. Here's my secret rhetorical tool that I've been using (don't tell anyone else)-- I just try to tell the truth and call out bad actors. When you don't have investors to please like VCs do, it's easy to tell the truth. Odell's hands didn't used to be tied, and that's why I admired him. That being said, he's funded some great companies like Start9 and Zaprite that I use every day, so I'm grateful for that as well. When President AOC and Elizabeth Warren come after us, we're all going to be on the same team again

2026-02-21 17:29:22 CET

- reply

I've never owned MSTR and never shilled it. I was one of the few influencers who was warning people about the dangers of mNAV compression at BTC treasury companies

2026-02-21 17:28:08 CET

- reply

That's a different person, moron. Why are you so lazy that you rely on AI?
https://www.crunchbase.com/person/matthew-b-kratter

2026-02-21 17:24:57 CET

- reply

It's something much, much darker-- I don't like aging and I prefer the way that I used to look in old pictures like that

2026-02-21 17:20:40 CET

- reply

That's true-- I've known Peter since 1995, which was the last year that I was wealthier than Peter. We met at the famous Rene Girard seminar at Stanford University. I helped Peter launch and grow Clarium Capital from $50 million in 2003 to $2 billion in 2006 when I left. This isn't a secret and is widely known. For full disclosure, I was also an early investor in Palantir in 2005 and sold the remainder of my shares after the IPO unlock in 2021 and put the money into Bitcoin. None of this is a secret. I have a successful TradFi background, which made my trading courses and my current perspectives a unique offering. Today I condemn Palantir absolutely and wish that I had never invested. It's the most evil and dangerous corporation in the world, but it was a different world back in 2005 and I was a normie back then, who was dumb enough to believe that the company was set up to help prevent another 9/11. I knew that the CIA's investment arm had invested in it, but for some reason didn't think that was a big deal. For full disclosure, I haven't been on Peter's payroll since 2006, and I haven't communicated with him in over 2 years. You may have missed the fact that I've attacked numerous Peter Thiel shitcoin projects since 2019, most recently including Citrea. Peter is probably the smartest person that I've ever met, but has taken a very non-libertarian turn over the past few decades that I do not support. If I'm such a bad actor, why were you publishing my articles on TFTC? https://www.tftc.io/understanding-bitcoin-seed-security/

2026-02-21 16:02:05 CET

Matt Odell Maligning BIP-110
https://blossom.primal.net/6dc9a0851c850d037dd117b630c61e470f6b2e80bb778f82e8fa4634e933a83c.mp4

2026-02-20 16:14:58 CET

F2Pool Decides To FAFO
https://blossom.primal.net/c2b520ad1defd32265a570d6bd61fb7d8ba4289379bd05cd84b094df87dd55d5.mp4

2026-02-19 16:18:24 CET

How To Update BIP-110 (Plus Activation Date)
https://blossom.primal.net/5d7e59b2be1ff38a42b0dd8cd7a00aa16dd1fc5311fc680a795ba6d7eef42445.mp4

2026-02-18 16:51:15 CET

"Place Horrific Content Here" (OP_RETURN)
https://blossom.primal.net/c56ae0b7336531e2a49feca576ce5c0d99bc9e249c073766481899de15a28b4a.mp4

2026-02-17 15:59:20 CET

A Sad Day For Spammers And Scammers
https://blossom.primal.net/53b2390c27d14a0e48eb8aabfbe627782ee30f1c3bc0776365553490afa6feb2.mp4

2026-02-16 16:45:42 CET

BIP-110 Showing Impressive Momentum
https://blossom.primal.net/52699928c621a12ac46952ddafd5dcc79b0c563b54332e82729be0526ea6303d.mp4

2026-02-13 17:41:45 CET

What Makes OP_RETURN Special (Bitcoin)
https://blossom.primal.net/03b697cdc943563fc5669e7a01dfed3f73dd02d2b1b5d8e7682f73b4e54cdafc.mp4

2026-02-12 16:10:36 CET

Answering Objections To The BIP-110 Soft Fork
https://blossom.primal.net/6e2a158b2c7e8b938909d62b05650d8fb92e0a83738a8c152a5d6e8bfa739e4b.mp4

2026-02-11 15:05:36 CET

Should You Trust The Experts?
https://blossom.primal.net/fb4c57f1ba9dc825fd798ea586e88aed09253b8089991a3e9a191f92baf52e94.mp4

2026-02-10 18:12:08 CET

- reply

You haven't been blocked for months, coward

2026-02-10 18:03:45 CET

- reply

I've heard it not discussed on most Bitcoin podcasts

2026-02-10 18:03:06 CET

- reply

Oh look, it's the coward who has me blocked on X because he got tired of getting ratioed so hard

2026-02-10 17:52:48 CET

- reply

Is it more engagement farming to constantly be talking about Bitcoin treasury companies, NGU, etc or talking about real issues like op return, Bitcoin governance, etc? I can assure you that my revenue and engagement numbers have plummeted over the past year because of my choice. So you might want to come up with a different hypothesis as to why I do what I do

2026-02-10 16:56:08 CET

Are most Bitcoin influencers just going to stay quiet about the Andy Back allegations and hope that it goes away? That's a great way of showing utter contempt for your audience. It's not going to work as a strategy, and people will remember what you did.

2026-02-10 15:31:48 CET

What Does BIP-110 Actually Do?
https://blossom.primal.net/0a7c4d19bcf7ee134b49633e18a1c38bb79ac401ddad072570a03e96fdc665b3.mp4

2026-02-09 18:08:05 CET

BIP-110 Gets Merged
https://blossom.primal.net/9f22bd5e1dfed133a4cf18479f6404c1675ef4bb3989ce43df9f7c610cf616c4.mp4

2026-02-07 17:33:52 CET

Should Adam Back Resign?
https://blossom.primal.net/737cc91e4d6fc04c4ae804419b8e30fbf1424c1ab87a8cd8ab5c6d417f455928.mp4

2026-02-06 14:54:39 CET

Gloria Zhao Leaves Bitcoin Core
https://blossom.primal.net/b053840dd1bcedca7328b76a2609fcb07c9446286a8196605fff3a082caaa6ae.mp4

2026-02-05 16:19:52 CET

Bitcoin Magazine, Adam Back, and Epstein
https://blossom.primal.net/7400fdf771e3cb6a2d0f38372f51ab22c0a074b660f1de06142e8acc61a8b255.mp4

2026-02-04 16:04:15 CET

Has Bitcoin Been Compromised?
https://blossom.primal.net/d4e145b16dddda1e3ddc8ca0f7123a676114484c06d12c1e8044e8c0bd88732d.mp4

2026-02-03 15:27:21 CET

Andy Back On The Island
https://blossom.primal.net/b9941d2c1f01392f2722e3bea47dec3822313259ccf140aab43dc0527f4514b2.mp4

2026-02-02 16:52:36 CET

Did Jeffrey Epstein Fund Adam Back?
https://blossom.primal.net/42ee9de4e557d6e3718858214d656a5d8bb62b457f6b33341a628fd9db5034dc.mp4

2026-01-31 17:03:26 CET

How My College Roommate Became Satan
https://blossom.primal.net/e327cd03182b4553a279de6f38c5702bb3be2250d5b3f666e16fe20959e36c55.mp4

2026-01-30 15:54:54 CET

Nothing Stops This Train (BIP-110)
https://blossom.primal.net/9de90d0624ee5bd347995d9ccf59d38b40e956a02d05087b45dd8713bac36b4d.mp4

2026-01-29 16:48:46 CET

Basic Bitcoin Beliefs Betrayed
https://blossom.primal.net/4c3443840b63c893532ae7d25882ad476b419ec0781b0baaf1569e295b96080c.mp4

2026-01-28 16:36:22 CET

BIP-110 Just Keeps Winning
https://blossom.primal.net/aad3542f7a6fef5e4acb3b63e51e510a718b3d17f55460bb9e0c63cbd83a1281.mp4

2026-01-27 15:28:29 CET

Guess Who Loves Big Op Returns
https://blossom.primal.net/be53cca6822fabfa57c0d4bde31842f738820e00c01e2de3e4ec9396da9bee22.mp4

2026-01-26 15:49:41 CET

Bitcoiners Rallying Around BIP-110
https://blossom.primal.net/21fe74935dd7f6d53822befbd7af0104c5a698a811d79395ff8cd68a6aaf504b.mp4

2026-01-23 16:38:13 CET

Running Bitcoin Knots BIP-110 (It's Soft Fork Time)
https://blossom.primal.net/4e20ed8fc4860b17659f12a3a4869637c423e564e95406e5474825c5fc006242.mp4

2026-01-22 17:04:12 CET

Let's Get This Soft Fork Party Started (BIP-110)
https://blossom.primal.net/736f6cc6626e5b8f1fbe56040366ec67ad90dde9a232d2b0e7c2cc0e186b85d8.mp4

2026-01-21 16:10:10 CET

Bitcoin Core Dev Hacked And Fired?
https://blossom.primal.net/028d08e33765c5f108537c1c9ca69e3ceb20af818c5479be95710946b521296f.mp4

2026-01-20 16:05:52 CET

Is Bitcoin Core A Meritocracy?
https://blossom.primal.net/62a5285cec7c248ec0624169ea615c8c00ea1b5557f11e4cdc9cad59127b7396.mp4

2026-01-19 16:01:43 CET

How To Damage Bitcoin Forever
https://blossom.primal.net/111a56181771f86f0a1409947541eb5dfb110767c0ea8f8c7e4ae2c87cd33dc9.mp4

2026-01-16 18:17:36 CET

Fork Your Bitcoin If You Want Fork
https://blossom.primal.net/1b41f1ad6c8c95b9c546b8220d6b0b236d7c1af137c4c5b8f01b12ccc89e95f4.mp4

2026-01-15 15:58:06 CET

Bitcoin Soft Fork Essentials
https://blossom.primal.net/7e338ade469a50148c12814c2f3edac87cf6272fab29540521455da41e057650.mp4

2026-01-14 16:04:54 CET

An Attack On Bitcoin Node Runners
https://blossom.primal.net/f18ec356550d9e41fbe9fcbdcd87f31b4e3ae3395f05a0a11189a076528bc1c2.mp4

2026-01-13 16:17:40 CET

Bitcoin Knots Wallet Bugs?
https://blossom.primal.net/7030401ce07fd8655e41767ca1f62c9f7056874d525a18bd990c0300d57e8e14.mp4

2026-01-12 15:48:12 CET

Adam Back Lying About Bitcoin Knots?
https://blossom.primal.net/a7105d3ae56a658d7e90ab510879329cc00a63913ff2b23eef40fda5e7642c15.mp4

2026-01-10 15:49:54 CET

New Baby Bitcoin Core Maintainer
https://blossom.primal.net/5bb2757258ae545b47dd8e4a6112cb4e24326071214ec823b248a243b146607c.mp4

2026-01-09 16:18:08 CET

"Devs Nuked The Wallet" (Bitcoin)
https://blossom.primal.net/5ffea0a3ff6caeca8fd2cfd5716025f49b6a5629547eb145d5096e6b74d76bd0.mp4

2026-01-08 15:58:29 CET

Running Bitcoin Knots On Start9
https://blossom.primal.net/f081553caaf3fc6cf687e9e56847600a5b424bf8549bf61f126605a27412ef97.mp4

2026-01-07 16:03:46 CET

Bitcoin Core Not Filtering Bugs?
https://blossom.primal.net/6e1ee8fff61585dc3e15cbd7f4ed0b5cd86168e0147d793237cd6a6b188903c9.mp4

2026-01-06 16:20:04 CET

Bitcoin Core Deleting Wallets
https://blossom.primal.net/b91895696391409f036b04e7ed72233503912896e1832c62be9c493b97d3b33a.mp4