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 0x44e4c1d093e6609ece50b54ec03e66280bda483db1f29a041aceab6193207d0c. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa2a2c00-479e-477a-b36d-f71a0415af19.json and https://artists.proofprofile.net/proofs/artist/fa2a2c00-479e-477a-b36d-f71a0415af19.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 0xe2ff57ef11dbfa64b29c31cd7cd0d7d16d5b8a65e2f159eac334d3024d92c752. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/GBKPL1792764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9070dfd4888b7ddc139fa5d6ff144fd600e1fe8dd68145b0ebe0e380c59e3fd9. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/GBWWP1804136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeabb8fbdf28e9cdb0a74abe7ec2152216de6da8531465c555e9d3961cef18f0. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:58:42Z), 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/GBKPL1938193.
Road to Nowhere (feat. Ro, Didirri & Meg Washington)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a485878ce2002add9206383aa249cb4c92ffcf51eb84bba64c8cce76e47686d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:19:46Z), 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/GBAHT1900607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9fda612d69864e1d06b6323f5b42045b9d10cb035a99dec4e743a1fbcdc717. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:42:11Z), 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/DEVP22400041.