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 0xfa3df3beea87ed86b2f253b7b28c70ba90f2fee2be611735ded165ffe8c379d7. 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/ce8e180c-bc0a-4a78-87d5-53a8ddcba9bb.json and https://artists.proofprofile.net/proofs/artist/ce8e180c-bc0a-4a78-87d5-53a8ddcba9bb.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 0x13b6214eb7627afe94f9a6512e1ba81bf3716f451a523906d8315028724d603d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CAHQJ2591004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9582f9c2502e460eb005cefe0a07ecf98091a63ff416275f4bfc99f4c4b2582f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USCGH1146766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea322c49bd5ab4ba4bc826cf3882df91048290673735ed2814f7923332e00ac. 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/USCGH1146775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791195aef9bc05aeeb2b329a8073025c8490b8503bb9f1ba16b767c40022170b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGH1146767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1c80cd49a091cb790ff1e0ab8f80ee5c606645e43aeb5a18ee7b199f217568. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:09:51Z), 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/USHM21189266.
Precious Lord Take My Hand/ Just A Closer Walk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52b2a672e28a309f0cce3f1fa76cd476a39bccd8c5fc8f7f98f3430ea3ba401. 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/USHM21189270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72238bbf126692a172ac6ece5d2162cd49357597c27baa7a8dba10353c28b2c4. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USHM21189274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1375ef073f38432ab33fa06414769052b0d5a0b23f9865d56681be01dc7b7a55. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM80872502.
Love Would Not Give Up (Stripped Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903c46061353cb8ca8f6e6d228f6375d579367826e0b5c3b966e9d87514c9b35. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CAENV2535051.
Love Would Not Give Up - Stripped Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4328461a9632b65eefc3188144f4e2f7374616f089118a3cd31b3e794907091f. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/CAENV2535052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0ed171708bf16ea6e4c90e28c94ac459b4bff5788c5df5f7e53a455b2ca8ac. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USCGJ1287641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fde5d92d84ca6f21fc05dba5121a753453f79f74699cf0373a739ae5758a44c. 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/USCGJ1287643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed3bed4f6280a2e54cc8eca66cba4737ddcbadccc7ae0beb8667b6d4c702e5b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USCGJ1287645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b4f2178418ed82edab8279b2abd217108319390a661bf6563cad10d9690ac7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USHM81470215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13a43361c6687dd02d9933d1e3ab549f6f6847ccf3c2b87be54c1348bc002e0. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/USCGH1513198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7fa473ba87b75f6c5c57e3f372b9a93d4719fdd8e5cad2c3723d20d63fc35e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USCGJ2008116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74bdbb8f1aaae2c14f75738d4407775dab22ab6428d824f61180cedc878403d. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:27:30Z), 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/USDY42089543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2389ac8f0d5fb4f7dfbd7af81aefd8cd634715e5ef7c4cab618351ba756132. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USDY42089544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e446dec7964555407d575b441e007d072d7172d2f7699c74b682aafe633d858. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USDY42089551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6667b812234fcef3880907a91ecd9f31af7ad39cf54b735a2696807673e2bb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USL4R2000887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9c946a5edf3c5cfad530da85d479928d3fcb9e0b4f1cb3ef7a077c7dbe480f. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USL4Q2124588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67af29a1ea3cc190fdf8363ddd414af0c3eeacfc94bd5d05c86f52c3207e619a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHN32225199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca27cac98faf93de8ef0570b99301d633be7a20189150233d9f86c6d49e2af0. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:24:37Z), 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/TCAHN2343576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe978bcdcf65d558305c619612dbc4bb81d7c0854391c5f77b7ea145b9ff1e5. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCAHN2343581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90223047ff807dcc0838d72abe067d4249312fc8236fcb2897269c1bdc81bd1e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:21:38Z), 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/TCAIE2477530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f359d372ed98f47dcdaf4a58166de7589e803452868b589d3333c43149a015e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CALVP2484856.