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 0x5e81d4ffcb4e8d243e9f285b48f627bfaba30e3f1b34583ad6575e497f910adb. 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/bb9f48f0-3e14-40c2-a3b1-7e4c6e1d5729.json and https://artists.proofprofile.net/proofs/artist/bb9f48f0-3e14-40c2-a3b1-7e4c6e1d5729.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 0x4d6994f6970e3a1102a9a498b4173935a0b283d41b8cc9c270fd69daed20c231. 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/NLS161701019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0198a67000786086c2479c800caed85b2ada851658e9b8ef5fdcd9244d8a74. 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/NLS161801385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe536efce598e1119d731fd27a51b7552a5c74cc36185ec3e43cfd7bc6d07d0. 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/NLS161600290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6994f6970e3a1102a9a498b4173935a0b283d41b8cc9c270fd69daed20c231. 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/NLS161701019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fca53ca5a43b97f26125ee37d65ffd6f0235bea856b5fa97c04c729cde1a044. 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/ATR981265818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25a92d3277eb3778150e5c1abe4c731c250fac3b317cdf045ff1e309c5afe5d. 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/ATR981265833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7434dd39fdc5f0b7b0ee3f9de4f1038bf30515b601c41743b22e9f156de5c493. 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/ATR981265834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b4195724a9b614449d130efbfd25485372fb1f08eab7d48d33b7fc36de6345. 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/ATR981265835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260fb0222512e8832abd05d701d3f83b4f1c6eac37893acfac3dc4bc54a5f63d. 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/ATR981265836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b978b068122a714b36240909d76ee0701c8a023d79720becd24dd93891d5600. 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/ATR981265837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4b89b7751441f7037b4d55323df858dbf30a891b3018621e1cd50bb2714c22. 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/ATR981265838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4704c52aabcc8a7d208abee5fc6158bdeff539b719e98196ef791cb649afb142. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ATR981265839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97482b2579b8d3648c95a1e44cba70a26372c91dcbad7a0cc9144f390836347b. 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/ATR981265840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dd9fa4c9cbca5dfa389bbaf3ac4d52906744883598a305c3e5a6adc479366c. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T17:01:39Z), 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/ATR981265841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6722bce59ad99ba4457a9e520a0f1865cbe2950dfae4f5dfabd3fe301877f15. 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/ATR981320552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26b30fadf38cde478bd22f10f9302dfda385e7954f257f2b38192d35ddd3263. 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/ATR981309466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298a004c10c018a26d59880e78d27f25f7fe889f76824acb61bcbde59d1933ae. 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/ATR981299848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57e9acd0b6ba21c7960c7cc01885b989b8c7d627d895748a4b350f44f7c2c36. 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/ATR981295116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd597d0ffdb0a458300973a133e9e266932ccc17ee830410843eade815002c2. 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/ATR981276197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b0646e588aaaf7a7645bbd47129ea34300b9b09e9f3d8f6fd47ee86ff5c297. 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/ATR981265708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2382788e1e76d687c616fcd1713fb262f6eab0c2f0a0b7a91b548f3dd5ad15c9. 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/ATR981214812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286ac90d39ce2ea7512d1d47ad9bae0116c31a7fe529b2454de70910405c269a. 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/ATR981208365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf85c75978fa18b05e2a6847e9dc0066f2fa48daac41c9d29730303571942b99. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ATR981208366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0582c31bc969250c9c7cc528ff788e1ac5f47411929f5a5484f7bae91b9c1d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ATR981206730.
True Dedication (Hardcore Legacy Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514a912f063eb673bc4173de83abe4f49b76cd0b182e0b9a9e0a28eb9f889330. 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/ATR981199864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3194f10e313699e3415696201c07d9ab5712bde3cb0cea368fee4b65aabda039. 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/ATR981194672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf733276d16a78f9c5c9ae815fe58e45f0e5d49fb525933204237793a5e58ef. 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/ATR981237859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f65eb2e0bedd008e31cb61f2be47c436bcc5cd5c09fdf95f4419bf9a50b01e. 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/ATR981237860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37dcc61a68d9a121a5d45e6c5973097704c1e16fc2d1cb6148b0f41008610c4. 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/ATR981237861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dc5ae14d973205cb6122c82b045256897b128351f21fc6feafb3f630a79ebe. 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/ATR981237862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb69a040d16ffac920cbff47950386906d2e8c58acd0b5d06b1d999c3f63973. 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/ATR981237875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6d8e2bdcc17f2aefa0a778531635396db617724ec55cf24748f1e41ebc50b1. 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/ATR981237863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955c67b25bcc07c4246c3ffd46f33a04ff81595957debff149fb6e807970e1da. 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/ATR981237864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81a7f5d9475eaef501218f5f03702f568c5e92898593ca2452404781ba2d06b. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:03:09Z), 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/ATR981237865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c69514cb5421195af24b310aebe776ee1a57cd47fea469ce66ea2fd1221ae45. 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/ATR981237867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a450260a77b9496d230197ad51bfe0e108c34074798b05d305f0aa92e93d43. 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/ATR981237868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de254c36a86d3061a932bd8a283f170935ac8e86f974dd6fa03a30ee1e2adbf. 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/ATR981237869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd09c58f30b4055ad514c2279fdd68a6b4e49a2e977f5166419ee58259fcbd9b. 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/ATR981237871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6497e180fe62467aaf2056cc4179bfb688023cd2a35bd5bce78c41d25818e213. 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/ATR981211080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1025044df0bcb99e1386f04e6689b9597596ef02cb68e72cffee6aa9d7554b1d. 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/ATR981211081.