1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5ad8a09a3a41cdad461a26d864ebd68b0366ead72d6d5cc99a378d53481c2362. 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/ad5df8ed-52e3-4187-bd2c-8ca7add385b0.json and https://artists.proofprofile.net/proofs/artist/ad5df8ed-52e3-4187-bd2c-8ca7add385b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Deeper Side of London, Pt. 1 (The Remixes)
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 → block OTSBitcoinBlock must exist at that height 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 0xe875d3a655c24b15efb1c6abb8abe5ac3816ddc631d45015fbf490825f98cd24. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ITZ331800070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa719fada1200a34ae4762db37366e594c0b63dc31e8ac28630064a61d692bd14. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRX281964213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeae0c00b0d9e8b55b3a44923cfed3d14f3b6ca2aef78de533e06801a8f9e09. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ITZ332000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c43db2f21ca93bc6f0054a472faaecac982cf8db1532732ce7e04539a119b44. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:24:48Z), 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/ITZ332000034.