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 0x7342f852a436661902057e9bcf60592883cd699205270a52076c8afb8d0db45c. 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/9d4e3ee2-4d7b-416a-9a44-b679ac9eec08.json and https://artists.proofprofile.net/proofs/artist/9d4e3ee2-4d7b-416a-9a44-b679ac9eec08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Adventures of Bumblefoot (And Other Tales of Woe...)
The Adventures of Bumblefoot (Deluxe Edition)
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 0xc10d95dd9a9e145d72ad43ecebb127404910435b2f9775cd87e7ce7f692382f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM6XS2101986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a862e4d78bfa7bb9eb1522925fa8b7b0f43a578c4533c0cdcecf241e66472a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFMG1390902.
Mothers Space (feat. Ron "Bumblefoot" Thal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4821720b234ec73bf86607febf861568f6724903e4021725ea73e1bc4d85c5c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZEQ32100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c887a7d973efb673c88ed81e4c51432ce397ab44d48f89b4a76439176ba8b0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FRX611800282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036a17294bd0fe7fccca6a29c7f052a87eb05327fe9d9e726a9f008a917c512d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEH842100384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb08c7c8f283bf5184bfdf3a26fed2f5bacef0a142717fc85f9d7dc1db3e360d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMEU32212992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915603dd965ea377fe96b9e07ee5d70cb074071d69c039991b90022a87ac63d5. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QMEU32212996.
Shrapnel's Super Shredders: Neoclassical Shred
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd3993c0dcbef36683f2bfb5d17735665738ab3d1e77ee5b5dd76fb6a20e17b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QM7281526510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036a17294bd0fe7fccca6a29c7f052a87eb05327fe9d9e726a9f008a917c512d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH842100384.