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 0x897814f06e2265165ca78c153838855df9ad8499abf9d9895cda58793790334d. 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/0189a78a-8888-49fa-8c4f-1f1db9217991.json and https://artists.proofprofile.net/proofs/artist/0189a78a-8888-49fa-8c4f-1f1db9217991.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 0x0737ca9da0c13858a47b1f02cddd52ca31f80c4d18235216ad1e1c3e6710e9b1. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QM4DW1896176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f3099b0c85aa999c7a4367fe80412531cf657d4ad154b052626380b777d3d2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM4DW1896178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea4ac5399e9d0c2974ee585a8625d857d9f7f21a96495e871cd58b689d07567. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4DW1896179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f78346a3b4442b854d922cf368256d43cfa542110821ab825f7ad326296eba. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:29:43Z), 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/QM4DW1896180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5e4989e1d4b9cbd13b3b4d0eabd76e02e598c282231f6c0414e9d8c048a500. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QM4DW1896182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1fe065202ac2ef40dafa304f3cb6b27bd268bd4163a8f05a63709ac23426cd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QM4DW1896184.
Man Hole (Live from the Alliance Francaise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09a132a399e4e8c8787015bd0de8967d4a4aaa348377763b41f335325145c2d. 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/QZK6Q2119950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa245ea3ca12eb0b87cb565c1cb5eb3c84110e7dd2f5ed6e382f04aaf15eaff56. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6Q2139330.
Nyame Mma Experience Live (Nyame Mma Experience Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6c2df60a14c25236442f1591fa459fac3fb33491f9bbbacbc06c908b5def79. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZFZ72462001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7948136c7591e3eec4d156a75090f619c3bc13bfaa8a0d076bd6f47d5021027. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:57:29Z), 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/AUMEV2394391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f49fc432cc9c61848f11cd8143e298367fd847837a219625712a14afda65701. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AUMEV2425042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a49a8c9dcbf52436fe5b810961d07041bae89a55da1c36b19a53226c587182c. 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/AUGBT2434809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8171ac46ff7d869eacca68d84ddca008387a3fdf89c232470e51f925c95b9b1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:49:58Z), 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/AUGBT2434811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e64c5c33f136aa3e442b3be21d84b57384535fcd486c135d60989d94c56fef. 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/AUGBT2434813.
Odo Awaamu (Acoustic) [Acoustic Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cf8f55b8ac155a1c8a98a8b40362afc6582c65d5337b0b5f1406ef199de683. 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/QMDA72304874.
Augure (Music from and inspired by the motion picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9181d7d6fdac77cfc6bcf460ce8272b1ff8ca863496f29285b0a9e720fd6f17. 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/BE5NJ2301022.