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 0x464c8d85c1a916f774c0e78205f059c15b38b6d1081cf019118aee6dac20fd60. 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/b6d249e9-136d-4636-a87d-dc59512e138a.json and https://artists.proofprofile.net/proofs/artist/b6d249e9-136d-4636-a87d-dc59512e138a.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 0xd72497ed85f6e38f831b3928d418e485087a3f06047c13892f892129a6b19668. 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/FRX281964165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fac246d723f9c6f4214eefc6e6ad9f2d38d8616fefc19df64967e099ecdbe9e. 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/FRX281964166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7aa1eb65d2718129d8f24e7606d975c8232cf1da3f6fd0ca194e827d8149d4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FRX281964167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543a911ee8f8c97c321c16d5c53f2b9a0d22c712b1d95445c09e2c30f76ecd31. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/FRX281964168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd9d8513ee47489c2eddabb8de62bf43c030604d394a7c50fa965c1cd8cee2c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRX281964169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6292dd0bade74549e50c0805d9f0e76173211199246a5c66fa36a1e319df19ad. 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/FRX281964170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bebe24c69b882e8e25c0273983177e60e0b9febdf2b42b57376cb136be96030. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FRX281964171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d6baf200f1499666a712672f55c317ec6bc87307831f93608bde040152a01e. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/FRX281964172.
Bienvenue aux antilles (feat. Marginal, Kima, Mata, Lyrrix, Deuspi, Lé Will, Mercenaire, Tiyou & Flash)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4caedf40b3e05473d99ecbed1ccf6774efa7d0422f0a25438f17a7c74cfe283. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/NLRD52022927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33596ba8f181224abf2925323f036e14989d07c68725523fb4b1df448cf684da. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FRDL62200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3faf6d3ed3eada84901984c5f8788e755da328d32fd0308a8ea12197cafbd35. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FRDL62200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72effd04c56851373b9b17618a63ec2830bbbcd5c71b60a22dce96a0d8b8a45. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/FRDL62200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb451111a10eb6b72154b10f47adf6a51a750f7bf2aebe90defe84dc04f0468a4. 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/FRDL62200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36757ad1c0a9176e3eba04050a9dfa70bf1255a4800dd123863a9f74981ccd32. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRDL62200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ee26a4d93993c2c8a5161db833f85d08b8b4e4771ff05d65556cf1c423e17b. 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/FRDL62200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52b01e969b401345c23d3ac63bd873ab92642425d3cf4ed2a5ed255c624bc9d. 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/FRDL62200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1648286afda99f00fc0812eeeac5f21bd67ff36af8d14a1d313427e3dda6d63. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRDL62200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe724c1dab09525820a8a5a929e3599c3202fa79b9209ee38a6c50810db6759a6. 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/FRDL62200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e532e8a207969c08e498edfa92e4744c49d0f6b0cf7b4781cb3c74e8cdbef00. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FRDL62200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfd7811f54c1b05bccf56dc62f27a4a86db97ff153b1535b559bbd41e900516. 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/FRDL62200200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddc23681ce8ed776bddfb393332126669f99090e3de404e8d1feca161aae183. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FRDL62200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c362a66ad896bdf869932f897177ce22b72c8f7f4580d76c98ec471feeb4c3. 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/FRDL62200230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7595c934327d604e72ef58c3ea7daae23f87624b32eac64892daab7c9af4c58. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZWFF2464035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78375ba7e02e1138958291493cd059c6bed53b856d74f6f3b893dfeae346889b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZZ762432554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbd232865d443b759118671515099525003bda57c97a27009df10a43f1e3d86. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DGA0S2444507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8561101acee49463e7f94871e4b9d618f3d9d9bfc838422658fe8fecfe2c9c. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/FRIDO2410652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8561101acee49463e7f94871e4b9d618f3d9d9bfc838422658fe8fecfe2c9c. 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/FRIDO2410652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb695537f754bdded9876cf36dc7c7bab99d1c1e995177700ce5fa2dfae05611d. 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/FRUM72102141.