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 0x9eff7c85d6f52cfb9a3c5e372f294cd5bc797bc19c73a3b54cd7d264f0265526. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c653f6f7-ed87-4c39-9501-3b7bc6082491.json and https://artists.proofprofile.net/proofs/artist/c653f6f7-ed87-4c39-9501-3b7bc6082491.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 0x27c7b67555fdf3a10ccc118b8dfd2a15caaefdc3b07f5621a4d637fd139bda8f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:20Z), 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/QZHNA1946844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710972ece77783d1280322ba579166e2277eb0bf140973ea4571ace75a04334c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZHNA1946845.
Afirmacje Spokój w Stresujących Sytuacjach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d6ed338d0259af69eb9b275e8f89733ef1e88b42bc87a0167863a4ffaa261b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:06:01Z), 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/QZHNA1946846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628a06ea559e004de870a70f67e10c32e363ed3ef19b2ad743935f9831d309e6. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:35:44Z), 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/QZHNA1946847.