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 0xa9b15cc7f87b76e4e984a2704969c1aad27b6c5c3ba7685c33afde0ef204e2fa. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dc92578-53d9-40da-ad0a-5c7b13dced44.json and https://artists.proofprofile.net/proofs/artist/5dc92578-53d9-40da-ad0a-5c7b13dced44.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 0xbad10f2984905c2be21966f524b94f73dd43a32ff492f27cc49219e5e9ab5cf6. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEP080600048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9af214052dea43145a15720fe5511f1c370f2be2d69a8e11e90940e572e01e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:17:49Z), 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/DEP080600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b9d4ad763a6958ca450fddfb5048baea48adfa9074074bc63e95ba8bba1155. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBLLG0600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bb591a03fc62763ff3445182a78ca87f8571d213b54cdaa5f41675e2944b5f. 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/GBEUE1002133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1053c6d052700a691cfb7acc4872b58ca4f56fe55401cf690b49a60c1f37534a. 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/GBLLG0600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e901cb07bafbe44fc597cb36558174f52ef3d28183996fc48774984c4a2ff37. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBLLG0600011.
Unreleased Mixes - Feeling You / Your Mess / Stylin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556165d81a9492cdd15447c4e0551fa93109d1e18831173c6906f2f8bd3ca934. 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/GBJSH1922902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6481e0ee954761be4e242986f5784d9134abc580f69d079f70106482d5c30c83. 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/GBARL9700268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf4f7448a5bbb2e243a98bb05cefe442bcccdfa345d612466ec92c142e2c5a2. 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/GBJSH1922904.
Who Chooses the Seasons (feat. Carleen Anderson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed8df344865d8ede3eb2fa439b14de5b5bbc8fa14e8b82907923d643f70b4ee. 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/GBJSH1922906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762e2b67fdf2815432cc1b7e6d7915a5083e99c56906126c9e1fdd381b091c7f. 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/GBARL9400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4570ddf9fdec392902a2fa6f4be678361336a6a863b41fed9da1ecbf25b7eede. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FR47Q0000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e195bee5362ecd5af8eb399052a242aa689049d25a1c15218c23a47ff4242a7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBJSH1922913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75caa61583574edffa665dbaa1e4d8f8a3d27363b156bddd962e00ea09542d2c. 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/FR47Q9903930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe560fb4227ceda065426f18cb29b66019d633f0e2d4ab8e171bc8f2de5639b9d. 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/FR47Q9903900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8895bd6e5e29c708d8d41318f7dfc471bf4cff42139156e06513762f40e08cf. 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/GBJSH1922917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89478a5381eb76867d67f198b2ea6b51c12e4316426784dbf47243fbbbb2fced. 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/GBJSH1922918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134317298f2031ff42a41a8b0f8215bbe1f38740c5e0306a58155c69e8f28b4a. 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/GBJSH1922919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bc32309a04804a0217e0c16d162c8f9dcd6190685b4136582d0c8ef169be51. 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/FR47Q9903910.
Vicky's Tune (feat. Robert Glasper & Ty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718f0c100e1364a144cffb7bfe67dfcb84347a35a23d9b7b3eb6abd32a1b37d2. 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/GBJSH1922927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf001a72a8afb66b1c49261731b418a74ce2498603f0baa0fdad5b4d1bf9334. 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/GBJSH1922929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18333cf19007df6d4cf265d66153d05b49dbcde110aef9c4b4e65aee4a584739. 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/GBJSH1922931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1ab355f3c3a185b61af0f08e3e17b8617332cbe16c30b2967f2cfae9ac9c36. 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/GBJSH1922932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef68645511efc7dd46fd79a75099494bacc1ad52883cfa4d9415fc601994c42. 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/DEP080900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cf3b0875c44bfbda1ad27075753aefd2e94b401bd934c004f987f62ecf4bb9. 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/DEP080600054.