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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4380ce3a1453d0eb88b3b28a501fd08376f70fd281c8085050579895537a7df. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93c15755-d254-48b0-9d74-87cf6b88cd4c.json and https://artists.proofprofile.net/proofs/artist/93c15755-d254-48b0-9d74-87cf6b88cd4c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cc55cc340f54eb4e259b2d1971cfe2be28ada0e583a2bda41f6c72129a985d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UYM122003801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f41d3a28145f59190bd21c8fd3bfe75ea2adc5190959ba1a358dfc78b5da5d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UYM123000215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dd357998ec97db13e896443d867fbd674f95eefada4bfd1bad159194bb963d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:46:14Z), 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/UYM123000217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8655559f194ae757c53bab91a74582885668959518bfe6f26f3f2a684ed6002e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UYM122400888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5cd12ea9a676e49b4f75153986a45cbebe8e0e60634be0bd76f23961e29d2d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:30:28Z), 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/UYM122400889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6569e26b174b107cbc351f80baac100c78942b9113a41e9d20d4df70a79cf517. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/UYM122400890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2dc46de3a897a239faa0f2753fd61af68dd55b0646842000cacbca1407566da. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/UYM122400891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bc63acbc859b36bdd6536110f69087d9631a1c1e0eed5cf09abdd0a7b927af. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:11:38Z), 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/UYM122400892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaee37c7f45a1c7c411396a908abdefd385ac1e9e44c598c352e5277bd561e4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYM122401900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b19bf00d692f8f98ba4986f6cfa8515537503ab3611968d7b6e6858a06c072. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UYM122500406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7c5185f1e6f99e527234234ad191b3ca300d7b988e53ff35293ad83f088563. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/UYM122500407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fb9d0e1e6ee7af458bae811fbc2c1cff325da7dbb8b5580d2930f349d67813. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UYM122500408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f9e6deeeefe3bea63d63c1f857c868000106803840ed5feafabc52a384d3cf. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:32:24Z), 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/UYM122500409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a1166eb9b99ccacebef7f2e0d6d7f822b8a525a62ac317c6383a073fce3f79. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:35:53Z), 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/UYM122500405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf477c33b74e5dea22da2bf556aa26245642d26c4adc0df32c3eb8e38d73e434. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:24:36Z), 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/UYM122500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bf0a598a88c3631e24512b7b3589edf3ca8559369f9abac25365f9bdcfd5c8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UYM122500412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777ebba730a3d06f651afa50797ff7fd25ed1f27f8dabf10a308836d06f22fd2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:31Z), 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/UYM122500413.
Este es el Pasito/Frikitona/Esto se Baila Pegao/Te La Doy - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e4941491367ce91f99c74320e5853d901e6393567d65b5d6b97153747ee19b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:43:53Z), 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/UYM122500414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d89aed79ba750bbb493959ba2f23fca75fba0e6af2bcae004b17beb1490965. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UYM122500415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203cc63f90a833f6bed41b67cf4329305e2641e5d4e59e05d72558aa4b4c5a5b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UYM122500416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c951a87088299cda10426b229155ccd8817bcd7d6567b51215aefea59854dd4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYL842400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a7a2c2a32437b756c3cf2c0c94f44cb0cbf960f89d8826be11141036239afb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UYM122401057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfb74977a3db43c1bf847f7ae1008b70d14eb34d4a1c518f7e27bfe5b185a12. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UYM122500105.