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 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 0xb5b26c05c33bf47da92828a109fb358762de1ff784f30cb15a98c657794bd898. 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/2ec9380a-7cab-48b9-8a1f-ecd1c62209da.json and https://artists.proofprofile.net/proofs/artist/2ec9380a-7cab-48b9-8a1f-ecd1c62209da.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 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 0xbd6b623514e0b1f19328f2a435bdd279ea1f44a58445b63bea493e46514b6561. 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/QZNWZ2132198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd514fbea8b9e19b520cfcccf9eb29ccf15de84dd48800ae212ffe61df17527c. 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/QZES82319764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8423539480e38914dd75793d1eee7c8bbaf1ad7a4083c72f955719de811a6f4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZES82319765.
another night awake with you on my mind.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977ae5c57a53cdb905b7e37cd2bd8fb4c4c37f28e29e2b78aa4432094ed8dd0c. 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/QZDA72389771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d58b9a64ced75e6dbe52254fd79df8a5cc300df225a55cd3f9e94dd8f4f07da. 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/QZTB32253550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6508288a63bc1df5912b818f280a634178e205118af23edbe0e9bb933e2f5c3c. 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/QZES82319766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de3ea928f3a32a1d4b49c4dd8de5965a8d7f5f40fa712422f5464e6ec1b0204. 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/QZES82319767.
every question i withhold, every answer you never told
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4273b76ecd87f61974a41598fa47c532dc5ffe617c038e0b5075bc87934c45. 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/QZFYX2350077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724f45d0c92a968793ad51d277ca4475adbfeb18f93c22f2e9bc581baf0430b6. 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/QZES82319768.
the more i try to trace you forthwith, the less i want to know where to find you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e5de36d036a585241f55e44c207b1125181aab5cff85a527c0dbb6db80aef9. 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/QZFZ62302661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0728d985229551cbbf87747e465ab0a8586d2fc95d6803999e36d6094b9298. 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/QZES82319769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d633be3ad1f8a90ba45d0366caae2bb89d666f12c416ce0fbd9f467bdead5d2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BGA471704061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86907d908614f65c34de1074a6987df5bfbc67d77036b20f3c17ebabbe72aee. 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/BGA471704062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a02584ffff9b328896422db486e1e9a21047c9a45415c5275a3370ff7a00b7f. 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/BGA471704063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c9836188e9ac2658100f35f6b6893fadb316db895a88af579a78d503f2ca20. 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/BGA471704064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1c0bac44532feb43588e3591b667fab7ee1890ea6e1ae6ececaff64195e097. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BGA471704065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5404cffc5b5132ea2be1bef93a4583c80596a45da3f9deb1f396313f899177d8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BGA471704066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8f034df4523e62248a47559d23552604b6c1d6b56f23ce213a5046f76c9a31. 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/BGA471704067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f4434807d9b9ca37098489aa8c7301137b00f8232180eef11205891a2674a0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BGA471704068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7988a54caeb1de93377bcf9ca39736d4c0689a880253ebcc944c764ca8676c92. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BGA471704069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977ae5c57a53cdb905b7e37cd2bd8fb4c4c37f28e29e2b78aa4432094ed8dd0c. 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/QZDA72389771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e5de36d036a585241f55e44c207b1125181aab5cff85a527c0dbb6db80aef9. 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/QZFZ62302661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4273b76ecd87f61974a41598fa47c532dc5ffe617c038e0b5075bc87934c45. 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/QZFYX2350077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d58b9a64ced75e6dbe52254fd79df8a5cc300df225a55cd3f9e94dd8f4f07da. 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/QZTB32253550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b623514e0b1f19328f2a435bdd279ea1f44a58445b63bea493e46514b6561. 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/QZNWZ2132198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447e3ca2a3470da879e025f77cde3bbfe3529eea8e077804540b5b8394d2453c. 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/DGA052039336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111c94984fa344b318c043432b2e077ab416baacf25f28047c5c9f5df56b7f60. 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/DGA052039337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a86f00ccd56b6c70e37491b0b1fe3f4c266d5ca1deca0080717268ee2abfd. 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/FRX201986863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3259aa426f647b087a869edb25caa9f1bd01c7a3e4d5463c44c14c535ec3d6d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BGA471901409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4c072a8523b93cec5f47f287a298dc77dcf0d1d1b18db6fa6266e73c041346. 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/BGA471901410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38a21397250dfe991e07cc615c94345f80270677cb076e569ee99ac8f3d1ddc. 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/BGA471801312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd918274612b56d4c8ee2823f792cd9f133357adefe37ae44a86b2e5ed0d2b9be. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BGA471801313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094e60f73d24493aa028bfadb59df21778e25962007dd932a613c5cdbc4f7816. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BGA471801314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6e261c78fe9e854d280cb89b77ed2409366f01168035296e58f23ab1823127. 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/BGA471801315.