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 0x084d8b5ef1afef57a1eb7eae07bce97887245e8d0fa784ef364b8805996facaa. 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/c9b6a6e6-9d50-4ac6-8a52-521c7f7ba133.json and https://artists.proofprofile.net/proofs/artist/c9b6a6e6-9d50-4ac6-8a52-521c7f7ba133.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 0x73439531580fb330b5844c6947096e3e8f8a2f6602b4c9cd210ebb1f7efdb3f4. 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/FR4DI1500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bbeb5d59e15c6771cfbed5983b873b5af5e31ec701044db6e9fa17198b84a8. 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/FR4DI1500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ce64b3eab64a1085d3a8e960a11298d086c79a0d59b127f9507e035e2fe933. 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/FR4DI1500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e2e4aed624a86c56adb1dc79b24b28f60c5a3410f908dbea6f00ff21f27d98. 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/FR4DI1500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae1f7e707f69fc25af12013c49730527a9a2a78922f566f5a910b541cd7bd29. 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/FR4DI1500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f17d2067f95d0f1982385c2fb3a69025135d98b158ae7043ea1f77237553c9. 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/FR4DI1500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa673e33a72af3c35dee6ecc0356bebd4982ceb8efa7204e9d87957700806283f. 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/FR4DI1500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c13cdc818c5ce05fdde815ca5a5b099b9470f65a9e87f92115a02201b1e56c2. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR4DI1500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1072d15f244fcfeabd36e7075656e2df396755623c8f9b0b870bbf93626a052c. 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/FR4DI1500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b229c54e9fe1948659274d17f0bac28af19e0987788ea43638359b5d44bb735. 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/FR4DI1000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240dcc2d7ff32661c0378dc12f7b103cf4af29909a629e8ae7764a8991fe9dc0. 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/FR4DI1000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbcc5c0d5c40ca0f564ce7b6f8c41c892b5fd0834a4f1cbdccec98e137c98e0. 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/FR4DI1000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d8ae354b2cf71f66dd3116ea6b5eb54c4f2dbf38e6e3615b3f4c0539eb9100. 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/FR4DI1000230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743423e734ce38839ec64b44ef464cace5f85b5e02e9f4f31e66d9bf2b9d7f13. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR4DI1000240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe173dd1a957b7e1d12591f2be92baab62004fb4d7a31a7439d52a2640b057256. 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/FR4DI1000250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae3c2f677171c7b78bc9309d9601de41de574bfb6463d3e7573da67998544e7. 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/FR4DI1000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7498bf621808c107099e41f824ae44da90f282b97c82bc2cc5ca1a89f3e4b28d. 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/FR4DI1000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd69ec5a3ecbe26ca13a1e9e57dfc6dd8dace2925e565e4cd49c66466bd400b. 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/FR4DI1000260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e722e765574b74483784f03d739b0372d5c335f32961e4c94c07dc4cde355da. 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/FR4DI1000290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a927e0303ff207c14997f48dbc01a537899fcd42d3122dd0cc5af12b737796. 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/FR4DI1000340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeeb69cf065d8509e65dea7e33b0264d0126130041afa3b5886e79b6874fb5d. 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/FR4DI1100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf8d7b85abff9b38e7f0b5ca7d14c9ad27e511058b8078dc9de29b2324625f5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR4DI1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47715bc616a9e495d3c141b6f0a2253fe2bd5a44f9b7ed098cf88329a65ee6f. 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/FR4DI1200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf8d7b85abff9b38e7f0b5ca7d14c9ad27e511058b8078dc9de29b2324625f5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR4DI1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b229c54e9fe1948659274d17f0bac28af19e0987788ea43638359b5d44bb735. 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/FR4DI1000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a230ac8b65687f9a632afd5345996b5d5ed5d88c7df5acd4e8ae02f00290e61. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:21:19Z), 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/FR4DI0900300.
I Am Not a Robot (The Shoes) - No Shoes Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9179f4e393bc0f83c8f8ef89a9bb1f3ad6f23cd6c13c2e4ab0c4654c75e8a69. 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/GBFFS0900052.