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 0x64d062ae18b77770285751a1e4be787d5e27f56a6e3855ad6861312fc5f8d5e1. 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/fbd9855e-451f-42a2-a6b4-f5633312485a.json and https://artists.proofprofile.net/proofs/artist/fbd9855e-451f-42a2-a6b4-f5633312485a.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 0x32127fc13ba14dee3f13daa1d3b01acdbdaeb41fb5ba4a2616bac9c8830bb0db. 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/QM24S2004295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f572cbf61140f87e1df9566cfc34fc90de89d4317db0a4793e198feb7437e52. 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/QM4TW2434285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eff3d272a6fc0ff5982206c34a1565f94743ed3a9f9f6b155dd9ab711331835. 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/CHF032404940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57721ade6c0418fe9619ddf39175e2a4bb5b6c4ec1dd211ee997234c011b1709. 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/INA4Z2200146.
DOMINOS (feat. Talha Anjum & Encore ABJ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da0edcda62c42d9e4781e059b94b2c54b6cc8a9a6816d8c064110ebe642c807. 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/AEA182400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24802b5d98e29394c398279b692eb892b16b284577e4df6d87dd529edc67f25d. 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/INA4Z2200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca17b6f001c83c7815314541fa82a8e454c46eff434b284ecbc0a2d39429b7c. 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/QMFME1561352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892ae83d8be7859cbf9c3e2eccb12527b8053cf459225069ca316313d641be2d. 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/UKJ8H2201979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cf3c6083fc2bc10bfcc93bf94d866f8266c060342f4eb390e73761948134cf. 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/ES71G2418541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb16f80ff47c5604dfe6912ce292601e40c1858889e02248b45f09e50583c33. 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/QM24S1923977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9032c49bf2220f82047979e109d1a7e89c2eb26711c76a96217ae93f7d63eec1. 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/FRX201973311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc996139dc874de9be4ec06d4e89d4a8306e31a64ef42866f541a8179f8462d8e. 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/TCAFK2145512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f572cbf61140f87e1df9566cfc34fc90de89d4317db0a4793e198feb7437e52. 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/QM4TW2434285.