1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dc1a2cdbe77f94629aa2027e7d67bdaf60814b77a986f6941cbc93f530f993. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eddc0922-a764-4305-bc5e-6aec4ef098fc.json and https://artists.proofprofile.net/proofs/artist/eddc0922-a764-4305-bc5e-6aec4ef098fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36cd9b7d8ab07461e21c6fc3ce297300f6f67996baa87ba5143bee7f0b2389a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21407532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8342634a4749ace14ca3e0bc9cc5a7e0a2a12ac11699daa2264359a85d1ffd5a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21407533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde68688c60a5f4f33d0f14e6e866e665894dc5a7639b31874a4771c6680f92d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21407534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb06ffd8c4b6a03a1006f900e781becd8ea1ca8a924ed9bddf2ea0f8a879f51. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21407535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af568fdf69449e8a76483316a9c8e7f9b115310be138424c3845f269844510d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21407536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209ed69f43bca574bf394afaed2ed2ed801bffcda90c464cbc42a5ca663c5471. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21407537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f827738b5dbdc52c275384ff9f12ec703a62fca236c6e5c1941a2d892705185. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21407538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905685c14cb7de6cd8063df3bec38c607609c4ee4ad0c4af0e8c27c94453e8f5. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21407539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb1dce776b0c97b5b30febfe965ecc08648202e45e655a1a98f39ce7a485027. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae6110a68d3419b963ddb80509e024c3a841810598cff904baf8894f5d9b660. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199e308d4e90349c01e98ad6d6ab6206174147f4fa66b6f9856f8b40d909b341. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8194d64132d86a2d31910ca964fbb931cf6b4662416d579712d206e3dc7216. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312a8b9fb1ef100f18a4622deb7216cfbe56bcc6593a4f39a08952991348bb16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a94a7fcc9c3ca6ce170614568acf92cbeeb764c4f83cddd838c83708c559df8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279ffb392c9f6a8ba6154558737f6edad7185a5f8d2cd6ab0c381452ebf6aa57. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddea1a684ccffa2b8af0067a50186ac7729f20befdb896676440df6882413165. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda74977cb0f6b9171e443aed1167638571855ca1050d8e67a98daab4a43a394d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1296552d10f28ddf02288c6b8531ffec744f107acb3d7780de22f16e7014e21. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907178.
Heartbreak Ridge Was Never This Arrogant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276270c15638364b20f86356c8872567fdf48a204f4f5b1367348d8724150c66. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefae07632d7c27247363493619f4ec38652bda7dd61ecea685b469e37519deb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890d527cabd910762e5304363d849476410bad4ecfb67f40ba12db03b3afd3c5. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d6a3103f3b1380888a591bd1cd44ca693c54791872131c1c3396d8b7b85ddd. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b3c10ba0a1561c4d5535b1b0758136b7fa4605d928c733fb7463d4917c7450. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05352a49118fb53d925d23a45a277e9ba7ff609646f1d371a7470c77de111bfd. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dca1663a95ebabad36c5450be18f9ca5e81114501cc749a58dd7ffd03958b2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4816ced741f3c72a23f61ddd549bb668ab9c0a33a7223a6443489daad5f0d1e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1538390.