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 0xdc279e64972b1f201eae3fa516ac49968642655f574a8533332f78b45d850adf. 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/a698cd51-f47f-4c8b-a9d0-c70561dc8332.json and https://artists.proofprofile.net/proofs/artist/a698cd51-f47f-4c8b-a9d0-c70561dc8332.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 0x4f6ff816e0640ea54219a2bd9ed228b378fdf9d03313ca4ed5d2c17dbdcda8d7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBLFP1613879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0999777c767cc81f0381319bddaa8e739219ec40c87a6aa7505e4468f2d9747a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:31:45Z), 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/GBLFP1613882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf35f4314879d3f0edd82db4b5757a16c7bdc7f8fcff2f87e21500d681d1b1a5. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:39Z), 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/GBLFP1613857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d24f06728b7ed0c64405ccea575f51392b4a2adcf2b95deed6491b74c55252f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBLFP1613885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4638312691f94bcb60daf04839637a97f173225bf50801ffdc581c42fc0638e0. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBLFP1613862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1892721669b698423756a7866444c9f961c24a4fd739b9838ed5bd32dad8ca8. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:44:12Z), 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/GBLFP1613863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea9d6bc9504301da2aff0cd29e8840d23e14b1cc0e0b77d267abd4255495953. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:22Z), 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/GBLFP1613889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb93697109a2ef0fc99ae43f6872985e16a886b08e78402d74af275a7347237c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:11:33Z), 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/GBLFP1613913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f60b645ae1970c23abb3ea9cc6259ae19700c76d02f675d2f2b9c5e2920a40. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/GBLFP1613868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccc2767db222393a0e7b30b65ebe48a353628ec6c7626dc4540894f5681ce32. 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/QMEZE1752845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8e843473357b5b85d0e90e271a993b5ec5f590e024f9af0b7cf0d3e6d15a2f. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:08:49Z), 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/DELJ81820245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15975df01edbd6cb44c7e3b31cd394d41f7c6c23484543ce8ab5fd3345bb7d07. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZK6P1943638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3175fbfb272a6cc7505cfd7080e71ae6b1ae0bb891342afd7a7c756d716b22. 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/QZDA72079351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5038795e69b420506532e23fedd00df0dd5161bb59f2b280dfbb86d2d40d37d0. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:29:28Z), 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/NZPB12300482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd759e5ee52155fccb358eabd0ad1353d61747cce8eed5f253a329d19705b120. 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/NL1LE2303149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee701c6fc530422b2b9b0549ca6365f328562178d3b324b71be4bd94fbbd59df. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:50:05Z), 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/US3DF2580703.
Fresh Fest - Mono:Massive Remix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dc28301f5c3f68effb425ae285d374d5bcba5b91f8cbd405058e7352803ad6. 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/DEQ121753178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab7316997931eddb5592d516cdd4e1104a1537e7581e51336b7c1993cb68df4. 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/DEQ121753151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd759e5ee52155fccb358eabd0ad1353d61747cce8eed5f253a329d19705b120. 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/NL1LE2303149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd54a0c9b80e29fc5edbf7e8bc2e3c950f691eff69ec30e65deab3896ba3b89. 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/TCAGO2272578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465271b61cdec86853dd409381c6b5f119c278be32d76cbfa28c14e9c61b1dde. 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/TCADH1737832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39a9e57b839fd9e120d5aa04281dde6248c4d60cd781764f568a403ee07b95d. 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/TCACZ1766912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb59866fe3c41712e7c84b78a38c085b39dd73369e2102e2185110bb987fd9fa. 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/TCACY1791680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a5b1ba5b339cd6178425ff14725da4a3ae388b12488e54234399c6ebda6bd3. 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/TCACU1638248.