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 0x8191fb4ff46dde47cec138a594e7618a2e818cf41b3c5471d568745a82255255. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2228db4-0925-4505-b999-f470be94be45.json and https://artists.proofprofile.net/proofs/artist/f2228db4-0925-4505-b999-f470be94be45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Until The Night Is Morning / All You Wanted
The Greatest Thing (Criminal Minds Mix) / All You Wanted (2016 Remasters)
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 0x30af295163913cace6f6dc934f4699b38c15ad04860073fd05bd8090e8c6053a. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T11:38:22Z), 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/GBHCD2102072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e30fc9cf9b631e5f7e2d67423fd41bbc574a80c915b7259539668cec794a44. 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/GBWWA1500219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352fb633d8c91903bb74219a5bc7c6c3bd6e6d4bb21d71f9bc0884735f5c970b. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:45:49Z), 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/GBWWA1600676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa548b669d8a08d0563cc34570da1e43b5ce43eaa817a20f734824293f9b2390d. 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/GBEWA1300617.
Conversions - A K&D Selection / Remastered by Mischa Janisch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427a7305de7481caa55a84ebbf25cf49e483c87e929e606371055676b5855b4c. 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/ATB152300511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754a9569f7597dc0a343e6e4723fa9ea5ffca44aaf69d3c6c73d740378d95b0e. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/GB5EM1701684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b00cb6183c3011375141913c21f73ca172d3c8910c51f54c3583f45320cb81. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/GBEPM2101612.
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