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 0xb024875cd1073feca3a4aea0f9a4ff28f7ef1e2c3eed63895f50ae79ee6bb268. 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/0f202bcc-a240-4c86-92fe-e55ffc1a6dfd.json and https://artists.proofprofile.net/proofs/artist/0f202bcc-a240-4c86-92fe-e55ffc1a6dfd.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 0x021fb4832e295e488b01dc7843a1a02ad4b45d517ecfafe062b5f9efed91b85a. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:08:04Z), 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/SEVVF1600902.
Awaiting the Fire or Flood That Awakes It
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b1793e6c6a2288d298e0f3e85b6cde75d701d2e5c8dd461e92ba02649bf29c. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:02:19Z), 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/SEVVF1600903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec739ec0bd8cd5b7fddc087a4c69bac464d96680ea80320a2c228db4e9b6a3e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SEVVF1600905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080e1f8e88aac526b0c10fc909e7d1418b2462d22053db61914f4bca652ef438. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/SEVVF1600906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c279063abf418eff1c4d44f8873c3b383fe5aec177a5a516088edd3c1dc7ad. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SEVVF1603501.