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 0x978b0c9e9422e359c0d15d76d9a2b85484b044149e631d7daeb9425686a53216. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0690dbb3-9a40-42f5-b448-97bb7c70544a.json and https://artists.proofprofile.net/proofs/artist/0690dbb3-9a40-42f5-b448-97bb7c70544a.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 → 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 0xeffb27bb497d46e967f6929ba21795eb8a2f03d3bb73cc02fffb5ea243acc5d1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UST841000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e1c71cbf58790ffc691385e58fcb851492e986f195ee955a37caf0f0c51a71. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:00:56Z), 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/UST841302901.
live soundtrack to the documentary & concert film (preview)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ad12604dfce42152be14ff52510eb81981b0420f265e3937dc24228e9448c3. 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/UST842509002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb892b4611f8f49d3734cea219a208d494523f46aff0303ee13e67822fe088350. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UST842509003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde88137657acd3420153bb2dab04e2b8c99b97c3e0932951a169ff552376ad45. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/UST842509004.
Split Like a Lip, No Blood on the Beard - from General Dome
live soundtrack to the documentary & concert film