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 0xa8d00123f19b2204f34dea00f36cd18fdf3732e648ba7ae3764e9edfaebeb5ae. 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/4c585947-6895-49e9-8fbb-f7c7cef118d4.json and https://artists.proofprofile.net/proofs/artist/4c585947-6895-49e9-8fbb-f7c7cef118d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Every Woman in the World (Acoustic Version)
I Won't Last a Day Without You (Acoustic Version)
Somewhere Down the Road (Acoustic Version)
Nothing's Gonna Change My Love for You (Acoustic Version)
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 0x0701413356df9fbc9cd1be6aeb8d9d3642e27a7b962ad43e2081364f1c2709c0. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:26:13Z), 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/SE6XY2579910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ac5546f0a6273a666fa8aaabfb8665d053ac8483ead824c16135445b932849. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE6XY2579911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6e26a554d2c9b75bbfc7187cf845b705afd8e76951769c0e0ef009b32604c2. 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/SE6XY2579913.