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 0x6de248672c50bac58aa13ffa152ba33340ca1c80c9c044034b6d5092310959ae. 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/207d02ea-98cb-4ca4-af8f-9965cefa4ca3.json and https://artists.proofprofile.net/proofs/artist/207d02ea-98cb-4ca4-af8f-9965cefa4ca3.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 0xa0ce0aba015031fb76ddc7f619f334713645fd3a6fd8df512981683ade2d7fa5. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T09:59:49Z), 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/US7VG1988387.
Onda do Berimbau, Baile do Bega, Morro do Sapo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b8aacd33d70db0bee8938cbb65636874581e3a60c6522ad06ac85fb026cae1. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZTAY2373128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa8954fd8130c98f20f15b91105a34bd7b2a031b59d96593f9b9075ef4ea27e. 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/QZTB52305940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6b67ddc673471ebe12ea1a122a1dbb9118811c939c4e33cdac14e75734a1a4. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:28:54Z), 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/BCYA12300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510ac7bd760798f5676810e9835df42e5ecd009aea44453718fad27d21d817fd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZFZ62439362.
i like the way you kiss me - funk mtg bh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8617af58d92a3d6a47b7f2496e0d40ce74275e074d35dec4f80e75e00208be. 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/BK1P72400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f5456f095694fa9dd1099b199d806b1cffa6743dbc788c3d695ddb413de31b. 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/QZTPX2442875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da49e9cd855b84d38f99733e20915684e048f886fd4bcc27fcff5d278e48404. 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/BKSAI2400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3640a4c0228c57228e5b27fd029f64cf7cd8755aa7ff68910d3ae1a0894a2660. 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/BK1P72400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b67c5a0bed54704d702a07629f5d0fec8523a96128bb8cda206ff1298371c6. 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/BKSAI2500067.