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 0xb98c643a7098748f787312acacbc983d211d4ea27091f63a19ad95e6c88fcc01. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ccce62d-5b68-4202-bc4d-be059b9aeb1a.json and https://artists.proofprofile.net/proofs/artist/1ccce62d-5b68-4202-bc4d-be059b9aeb1a.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 0xa6d73be66824afd9cc0a2724944ac960cc8920de37b4f3c2f42dd820e07e3154. 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/AUGBT2352198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f26aae61e0d84d7fc2e827dede06ff31335e7d1a9145af66eca5765b857d81. 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/AUGBT2352199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17331e1d444c4475327cee58ae7b464a60a8c430a03d54efb65cdbfd241353b. 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/AUGBT2352200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54512ef3a228859f45c49d791cd2e179e718aa1e053a962568178380ab961244. 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/AUGBT2352201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff6be0ffd15e9387aaf2793e30f21351cd30dd4dd69326dac8c2937e5078b4b. 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/AUGBT2352205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af70dd0511b071c8598da7e1ceff6ff70027b22a8011c7c621f14ecd5be1e65. 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/AUGBT2352206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac8859d802263fc5fb173e67dde65bf0a976922cd87e71750a26d92392fb586. 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/AUGBT2352209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95fe642119cc960b575392f7b5182646a4c623699f65c44774e3dfaf35a7d01. 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/AUGBT2352212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e8dc6fb44e727d501b4d91c63045df0d4f4ddfb57887e2dbb321719c1a19b1. 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/AUGBT2352213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c44131045e93e0bdcffe580415d4a8ad9036de9f72f0075a47cf44bd9eef46. 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/AUGBT2352219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbb0439e33ca15b41430e1db66f3670dea3983f7e288fe9444fb3cbfcfb02c3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBKPL2095787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa517b28c476dc5cc03bf758c443c2b41af381f298bf6a6090dbfdba63a1d421c. 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/GBKPL2095788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c836a66a5d4522eb7281d4e094186bfdde5ed517c8620da32691a668f9a7882. 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/GBKPL2095789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957cdd5039a3355111b5fde54b94660e7e60033144b21e2f29280ef71d9eabb6. 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/GBKPL2095791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e8dc6fb44e727d501b4d91c63045df0d4f4ddfb57887e2dbb321719c1a19b1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AUGBT2352213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54512ef3a228859f45c49d791cd2e179e718aa1e053a962568178380ab961244. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AUGBT2352201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d73be66824afd9cc0a2724944ac960cc8920de37b4f3c2f42dd820e07e3154. 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/AUGBT2352198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac8859d802263fc5fb173e67dde65bf0a976922cd87e71750a26d92392fb586. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AUGBT2352209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9d9910b9e8c17714f74ef93e437e417f17e2e1f6f76732fc99f1ba6f56bbe2. 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/AUMEV2336170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe260407ff22220e9fc2d2712c2dcde0da59773f18951e615480687117553309d. 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/QZNWY2262481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12473c8d9c0acd8f28b1df2aab8a98dd0ecf3c4f348a64d2a6bc0739329fe120. 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/AUMEV2306140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9095c19acbc84664768de8d378aa7e8ed067d21e400be47ce64e2a5c22d84a91. 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/GBKPL2201139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe457456d6f6406c50cbbccf303316453ae5c06b513a0a53a3f638e3ad1a67ea1. 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/GBKPL2176718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12473c8d9c0acd8f28b1df2aab8a98dd0ecf3c4f348a64d2a6bc0739329fe120. 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/AUMEV2306140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe260407ff22220e9fc2d2712c2dcde0da59773f18951e615480687117553309d. 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/QZNWY2262481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9095c19acbc84664768de8d378aa7e8ed067d21e400be47ce64e2a5c22d84a91. 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/GBKPL2201139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872a5c13f976dac896c39a6fec0a94f0579d26c99510e5bc3a696ef4f5dce0df. 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/QZHN32199457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe457456d6f6406c50cbbccf303316453ae5c06b513a0a53a3f638e3ad1a67ea1. 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/GBKPL2176718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7b93a80017dad4856ab8e496aca7a3d19de8303da16357d84a38dc59ba1e45. 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/UKSLK1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cd0715f4d2e89911d95e9aa251b5d039b36c86fc0765def61e48e9b61bcb1a. 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/NLC8O1800075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa497583da6e13b7a0af230ddbc86ae37a3e69bee781d12c9e5fa690cf2eba796. 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/UKKM91700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3005ed4352709b2dac85a5d654f9e41b59c6aca63b2921176b601782c442433. 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/UKKM91700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a4de43039e4a910866bb58fd3987252adcd6abba485e15e7ee8e5997fac78b. 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/UKKM91700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73cabfce5b305217dee9fc8d68869d889e583f85d40a10e8364737775306040. 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/UKKM91700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3005ed4352709b2dac85a5d654f9e41b59c6aca63b2921176b601782c442433. 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/UKKM91700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73cabfce5b305217dee9fc8d68869d889e583f85d40a10e8364737775306040. 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/UKKM91700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa497583da6e13b7a0af230ddbc86ae37a3e69bee781d12c9e5fa690cf2eba796. 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/UKKM91700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad8474e47e51171a09d620be7fa2e7bafacb4f128ba36ef68eeebb78e59ce50. 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/TCACK1514920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3b0c62f42a33372fc944c031479991879b7918bf741b9e938735fd3d479e15. 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/TCACK1514921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0b9904c900c27393e536af4db60d500380e77fe87c1d9da21c25bfa8bd960f. 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/TCACK1514922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f169908d1146853acda845c6d7d968ca6bf025a7329f694f6e10d8a1c5f057d. 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/UKSLK1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7b93a80017dad4856ab8e496aca7a3d19de8303da16357d84a38dc59ba1e45. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/UKSLK1900002.