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 0x070c18e09a75b58da67b3dae7bb36fc2a34bad736806bc5add597b4e56c0d8b1. 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/5bf1f557-1d89-4900-af9e-d71118ea81df.json and https://artists.proofprofile.net/proofs/artist/5bf1f557-1d89-4900-af9e-d71118ea81df.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 0xeee7ee06e1c6654af84ea5ddda5c0527333feb2b7f6850b7a1d15dcd6d3bc77c. Chain 2 (Bitcoin): anchored in block 956777 (2026-07-05T11:01:08Z), 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/QZK6P2465739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259450becafaeaf95ef4b409c0d46b80ba503e37fadaab1db3800bcba26af892. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6P2465741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e9d3f0fb3527f1003bd37d8fe2d16f42750a75edb86a125ba2c82e80e6a169. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6P2465742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea68e6c2dd4b2def1f46f519a15295817233bb1fd4170c39355a5cf45ee0807c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZK6P2465748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67f854aa33f840cfaf7e4dae8a0f545e1f2cc9038a149ef75fc65e730e113e0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZZ7X2442768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0a9fb6b2828506e2d24a253d9504d46edd9db88581c7e2ab32939116cd4ba5. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZZ7X2442770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdf3565aa4db3a5d46b2bae973cb4ab44becafee8bc805057a6767a20f82261. 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/QZZ7X2442771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc7bda07f6a627e631c1bb279713a84ecc855b52eee15b2770d5a5ac17c0380. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7X2442773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f71b6ffb64a3c0482e8b4d4daa54b2a89541b88dfa29ae40c9a8e16ce6f145a. 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/QZZ7X2442774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631b99f819847a5c92df5775c4730f5968d712237248e51ef7a1f315b20e41e3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7X2442775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8010a55a4603aad3055b6822fdefa9000b39cc89e3d17e9ae8df0d1f6d3374. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZZ7X2442776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fda9c237b0b95c8f2665ed0a1d11fc20a5bdd57e42a9f1b59e267cde260ef7. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZZ7X2442777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffd9ddc5187f7c7a414d3afc8882ee6e3d4316ed64faaacbe48e28003cfee90. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7X2442778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a8faec16abe5b1a8dccb4b89cd80439d16ef65140772264b5e41a89e6b0a0f. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZZ7X2442779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f28e661d7f82f6dcf3d4ed6101ac54dd32f33875c38a4754f686c68037ef72e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZZ7X2442780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4a917bac2510c610db0db615ea82a950a32afef0808e2ec89128327003751a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZZ7X2442781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d08663727fc7696efe659c773a3704057c7819894af36645f9853f859fd4cbf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7X2442782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5448df777fa81f981e2841c4e8f50020b1cbce43b4922eecc6cdb2e7aca218b5. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZZ7X2442783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70660fe0c6290fa33c4d753ddff1c608298bf56cb3256e9d9f36bdef35bcf6b7. 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/QZZ7X2442784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05de5c752d785755701678c03f20a9b582611f5ee24aa7daece66d53abfdd434. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZZ7X2442785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a2b70329e56a93a5a6f12f2d68c43c0cc35256d74893cc6e8f80af5dd65a29. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZZ7X2442786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be71e2ccbfa66f65d8aee2279806b8841a350b522f5a9407dfe5199df42938d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZZ7X2442787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d9fb40076ced378aa450b1efad606f7b07197c0aa393bfa899b728d046a252. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZZ7X2442788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb73624dc5f141e20ca77526747cfeb885547df91c79c1b0e35feecc6b3d36f. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZZ7X2442789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60805c71b991c9288638e33df0a0b882b3639ce891387742612e18b6bc8d8b48. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZZ7X2442790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2528168f8103df7fcca0fad63e9f76867e1fd381d7c11d19d3a59eb41e33b79b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZZ7X2442791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa888fff8ef276d51bb4eeb073f9a6727d21119237624efd2ad8ff2afee965b9e. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZZ7X2442792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844ad1b7ff97792e3c94a022694d8235204bbb2c23d5f44f55b40a60d67e42a6. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZZ7X2442793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9193c1198253bf67a93bde2b41e1163e5f7f88a5788bfe5ac5042f7172b478. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZZ7X2442795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9757810ee90e13a0e5c51f685770d020dfc6fafa2eb83ded79e6174cb6674a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZK6M2589910.
Action Cop: Operation Eclipse (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3f199e3a1fbf3d29e286c97fc1d76548314d6fa365fc9ddd3df6eba575de19. 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/QT3FH2585619.