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 0xef51473a0987d9748d7f63a0e6627344ae800db3b4d65a3565f7c21902035be3. 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/8ac4ec5d-e0cf-4b02-a2aa-8464ed8dacc1.json and https://artists.proofprofile.net/proofs/artist/8ac4ec5d-e0cf-4b02-a2aa-8464ed8dacc1.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 0x6a877359c2a54d763c92667c971db5fbb9d8b346cc913e358bc0e4f2fbf4fb88. 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/USHM91252084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5817f35eab1843f3a4ead3f82f741f53da52d0aca7979aaf7dd6954aafac9d1d. 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/GBNYT1200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb435cef9bc93e6797145d13d6bd5485596a22efe75f202ff7bd12727bfecfe. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBNYT1200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e53a473f229e264d2990b3b122173077245beb7e19034b13e9742c19a3bd91. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USX9P1071134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25643767a7aacd01f6c9d54ee1726d91aebdb5bd7cc18e47ea93f5c8971edfeb. 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/QMKW91200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2388d108ff06dd811de4e4ec13d7d99eab1fd6161a4774d8deee2abcfb687da. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMKW91200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a5bf6bdec05ee52f829feb0d71ad0da6f009c1f69350194907c685f673abe3. 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/QMKW91200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc19e6cf72e0ce302543c9d15cb9e587d052af03178b6b76474b175684852b6. 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/QMKW91200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443be0c76e54fa02d11f5833598886d43046c597e3aa81ab1a7ee5508ef48fb7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMKW91200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaa2621adc0adb971fbecd95b2e5c9be08cdf85b718292061ef938931023d41. 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/QMKW91200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7563a5845a7788d11cffa20bfff5379d7f5b0adc3aba03e9d3addce917cef5bc. 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/QMKW91200213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a3023a780b225fcaf37851ab6d9d6893b275e7a50c78a58ff30847871c1a89. 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/QMKW91200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451821869118a3272e89b73bc9465cb9e300c0d6a9feddf920a4126b35494f03. 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/QMKW91200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e28891376769900cfd3ca3a24afdae45a687a56ab3519f360ec983e87a7f26. 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/QMKW91200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266b851814344fdba99676e464d84d16fd99d9284187fdd6f1cc35ae5b43922b. 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/QMKW91200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1c1cef2d7d4b0b948190f2548224e092b20b6c9c81276c41483901846c007a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMKW91200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fe6642fbe36fa2352dc20c6a6eac3bc9607fd4c9a8d4dc199fdbb32d355c7b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMKW91200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba95512d82eae48d25e77197767f85b838759d4e0005170ed77b6918971ba2b5. 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/QMKW91200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36c22c4720fc9f88d82c50c0695d8bad2783dc29a3299e02226107d306be726. 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/QMKW91200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd48521122c4e2eb2d6c5bc147c5a9d1efc86de7fc5f9ff1604ce60c41b17a01. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMKW91200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b74a61f7f9f6df13472f09b0cc6eef9f62cba5fc12e4eda531fa74081b376f. 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/QMKW91200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6434bc44f90c49766e2e822ae644d9e9d8bf403e4d8cc0047d59dadff0c55d. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/QMKW91200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a926ec3f7e675b258df67e82d127128a21232c39399bdc34496a0b115d40ff2. 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/QMKW91200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3973a06d41753e628bf03787ee6af0288ea0885b865d4b2d24709176fbab79a9. 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/QMKW91200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd469c068e5b1bc3b84d352fde11e08367432a064892608c4ee387d80125c5c. 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/QMKW91200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf71e6480865bedd585403ae21f20e4d533d15999c2e02ec7bc6ba238acd68ae. 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/QMKW91200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d5ffdfd7d76a6f173babbaa30c57a56268bb85b95472ed1608ef4af7e50000. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM4TX1624209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5844c203c70c2ef24ea05c9107a8ad6c7707b5ebed1e67ffbb2101265a3b4e41. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM4TX1624210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1c1cef2d7d4b0b948190f2548224e092b20b6c9c81276c41483901846c007a. 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/QMKW91200148.
The Council (Original Motion Picture Soundtrack)