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 0xe9c87a46428f20805a7a191aeb1b1c7bbe56be82442cad8621de8b81ffaadd1a. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6585a624-76a8-4eb8-8ac6-90466ee41c1c.json and https://artists.proofprofile.net/proofs/artist/6585a624-76a8-4eb8-8ac6-90466ee41c1c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Doc Tommy Scott's Last Real Medicine Show: "World's Most Unusual Songs"
Tommy Scott's Hop Scotch 2 Sing-Along Party
Ma Maws a Millionaire/Skinny Malinky Long Legs/O' Jemima/Runnin Roon the Hoose/O What a Life
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 0x588ccfc28d70045351cde1f65f9e08f94bed72fe082991f59889cd48c1a95c08. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/GBBEX9402831 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eefcc934345734e99c42ce1db3ff808336f5c56d79d1ab34d730d91f103d847. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GBBEX2301568 — a six-check JSON result.
Tommy Scott's Christmas Sing Along Party
Double Hop Scotch: Party Collection, Sing & Dance to 101 Great Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79091e05ca86b2206fb20eba32991264e09e2c95fb612aeaac47f9b6441f4a4f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/GBBEX9101019 — a six-check JSON result.
Bonnie Wee Jeannie Mccoll / Cock O'the North
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffda0ea53ff669fdf598aa3bdbb8bc6d1a10e3f01c0639720952e14cc08ae5d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GBBEX9101028 — a six-check JSON result.
Double Hop Scotch : Party Collection, Sing & Dance to 101 Great Songs
Ramblin' Tommy Scott's Hillbilly Jamboree
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14363c887ba55885d1a13ea20bd30af4068628cfc73a18887cc715b7816cd5e2. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USQY51608964 — a six-check JSON result.