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 0xb735d7458a51e6072b40fb34570b7be27b137cb95328fd4d9f10f0557c2fcb13. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/975bf62c-8e34-4ddf-b610-401e09d7ab31.json and https://artists.proofprofile.net/proofs/artist/975bf62c-8e34-4ddf-b610-401e09d7ab31.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 0x221141162ca8f7da5eee00053228c8c1b7bae3f3a32de045416f343e478d3102. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMFMG1537529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0347709c126233c1f50335f73c133862fd1a299b9ddf982745f870047babd52. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFMG1532032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0c59a24514efe05bbb572929a71fed9bfbaf2fc247b28ec3297dd3cb506021. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:46:15Z), 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/QMFMG1532039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc40e1cec39f12e2ef164ebe5ceb0f2fb84839ee4b7a68d1386ce9cedb94c37. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:33:14Z), 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/QZNJX2316285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5dbc8ed1693106048dd68838bed98286d9993d5a661ad9c14a8a5b176920d8. 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/US2BR9701569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c7bd08669936b8731748b4cff08e5f2fa3c3c8d90b0e32ff53d6e4018add3e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:56:36Z), 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/US2BR9700682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6aa75979d14875e91a5f4cf514ad8b94ef90b1bb4c97381f8e022d35557ae5f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/US2BR9701573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e45541690f85e9f40acaa3c745fecd1748117a26a64f8ff160bc3ea7cdbb6d2. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/US2BR9700367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286481b5547ac3bff29b6458a664b6df8d1252fffeccfee24cc16a898e5bffe6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US2BR9700378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d341b233700a1f5b4157c084f0f8a3f3623591e96c74420a04a6ac3d6983f43. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:28:23Z), 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/US2BR9701091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0d9f7e37e4b75b3c7d920dab18de1476f1797d9a204b373402715340b97034. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US2BR9701574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce390ce2e4b6e941fea9bae6e4016c868fca4af4c8515d0eef26198be43c5e0. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:25:36Z), 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/US2BR9701576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4042a092d2b22b24110eebd2f36d95167117516866585030bf49547a54d6bdea. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US2BR9700372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fe69e0c6c2d03904361c3219557529c96a5f04c89aeaaca5e9aa30554b010e. 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/US2BR9700993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a4f49c6bf5b271d60747b606721885c126ef20b11affea3aaf9601ec871427. 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/US2BR9700370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e366a3f1923448386e60c20e8594ac693ccfaace09bad0e827cc170bfccf43. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/US2BR9700373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a4f49c6bf5b271d60747b606721885c126ef20b11affea3aaf9601ec871427. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US2BR9700370.
Μeeting With the Soul: Developing Your Self Esteem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1c49d1eb9bc940ecc44ad4d94657ca2d0c6dd44f961ef8a254342c4aac153f. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QMDA71578161.
Quiero que estés conmigo (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cba5b2dfb1abd1c438b0ffc734dddc6c57b35ccd80c776decdffaf26e7d3275. 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/SEPQM0614323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17883d43ea51813230cfa11c6a7d7b4843bd588f4f7ca7f2eb3bc1f2602a82b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US2BR9700681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4b6d62dbcfe7b8d721f0bd70b682d5f5358c9e678aa438b2f4497ab0587d3a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USANG2126757.
Passione per Italia - Musicas Romanticas Italianas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf6bf0999100114ad4ee7df3c79950e524a4d236f48b3e40ddc5803d4784d8f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/BRMVP0401051.
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 0x03e0f1169e2324006f3f47d3c99d7b8b5aa3a6efc4e7b35fb48784e80621bf5d. 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/BRMVP0300122.