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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03f569d2ab91a10e65c28f5208e3ea1c280b72118f17571f90f6ac336e74168. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43e637a2-c81c-429d-967e-269d7720fefc.json and https://artists.proofprofile.net/proofs/artist/43e637a2-c81c-429d-967e-269d7720fefc.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Ratchet Instrumentals 2015, Vol. 3 (Karaoke Instrumental)
Ratchet Instrumentals 2015, Vol. 5 (Karaoke Instrumental)
Flex (Ooh, Ooh, Ooh) (Karaoke Instrumental Version) - Originally Performed By Rich Homie Quan
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927f682238f61885f0d9cd84a068ecf1f278d9679df4c40e08543a18f74a8f3e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX451511586 — a six-check JSON result.
Ratchet Instrumentals 2015, Vol. 6 (Karaoke Instrumental)
Ratchet Instrumentals 2015, Vol. 7 (Karaoke Instrumental)
Ratchet Instrumentals 2015, Vol. 8 (Karaoke Instrumental)
Ratchet Instrumentals 2015, Vol. 9 (Karaoke)