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 0x13748577925b605b2edb042d3c1b8c5c5a5af8c8c3c4f09d4c13980ecf12e865. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45c78f05-203f-498c-b3c0-4458462c22d4.json and https://artists.proofprofile.net/proofs/artist/45c78f05-203f-498c-b3c0-4458462c22d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THEM NIGGAZ DEAD (ALL OF THE LIGHTS FREESTYLE)
THE BEST OF (BEST OF BOTH WORLDS FREESTYLE)
EVIL ROOT(LET THE SMOKERS SHINE THE COUPES FREESTYLE)
MORE PLEASE (TWO BIRDS,ONE STONE FREESTYLE)
CROWN IS TOO HEAVY(NECK & WRIST FREESTYLE)
FORREST GUMP(DREAMING OF THE PAST FREESTYLE)
DA SLEEZE(RED RUBY DA SLEEZE) [FREESTYLE]
AINT FUCKIN WITH ME MAN!(KANT NOBODY FREESTYLE)
1AM N BALTIMORE(8AM IN CHARLOTTE FREESTYLE)
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 0x3e877f37bbaa5e8ea1a1dde979199c6905f5f2c3897830944d698fa3c0b52275. 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/QZWFH2328536.