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 0x0dd639d23829bdfcef2a7593eb1669215f9c63d4f2384394d6211fa509339d58. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba323d61-c205-477e-a9f8-5ba0f1a0b475.json and https://artists.proofprofile.net/proofs/artist/ba323d61-c205-477e-a9f8-5ba0f1a0b475.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'histoire de ces terriens (Space Funk Version)
Just a Little Bit of You (Giman & Chic Ago Remix)
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 0x86043f64bac7b397b674eadc30f75e7daac2ffc88f7bb2cf861b4c40e2b1c947. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ATUM72100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d0b1b1b1fd41809319c6ef1676e036134983cbf731682a8446f5efb40d9dc6. 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/FR9W11717917.
The Truth - Marc Cotterell Plastik Vocal Mix
The Truth (Marc Cotterell Plastik Vocal Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69477bddcc06bcb29f9c74dd75d42c32b17ba709fff6b5dc519a3bda7ec3e5e3. 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/FR9W12514303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ca61f5763a13bdb469618d8842d8a84b537046246f55ab1490040b3a5316b9. 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/FR9W12514301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8806fcc55327d595129babb1ed50818c9db5704935dd3becc65027b0c974460c. 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/FR9W12514299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1932cf9c6c3f88577efe9bb4b5879dc66debe4f52df45b8dc12470d95ed870e3. 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/FR9W12514300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ca61f5763a13bdb469618d8842d8a84b537046246f55ab1490040b3a5316b9. 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/FR9W12514301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69477bddcc06bcb29f9c74dd75d42c32b17ba709fff6b5dc519a3bda7ec3e5e3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W12514303.