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 0xf1694de4c1068274d3a32aec57d983c24e12499b373a289ed0c0caab261819d4. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ed8780e-2e79-4fcb-a368-4f628077ea4a.json and https://artists.proofprofile.net/proofs/artist/1ed8780e-2e79-4fcb-a368-4f628077ea4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Downtown Troy / Haul Away the Hawser / Distant Colours (Live)
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 0xf8b718606a8e91a5bb147243db3bf3493599f68544d828e8d22db8697a7dde33. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAIM52000003.
Memories of Father Angus MacDonnell / Stumpie / A John Campbell Strathspey / Lord Seaforth / The Night We Had the Goats / St. Kilda's Wedding (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569e02b287c1e9c62a89dd2c342274a014037101b540a5a11beedaac5fb88bcb. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAIM52200004.
Befuddled: The Star Irish Jig Aka Traditional Jig in G / When Mud Gets in Your Eyes / Moll in the Wad / Thursday Night in the Caley / Pat and Al’s Jig (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a9c24a7363c36fd13811e0c62bc1d848f5123bb44c6f1721e9c4618925d1ba. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAIM52100012.
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
Father John Angus Rankin’s March / Ca’ the Wethers to the Hills Strathspey / Editor’s Favourite Strathspey / Traditional Reel / Locheil's Away to France Reel / The Gladstone Reel (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b4455367ae3a513a951eaf5d59ee0ba4d46e208e0270b03f91f8a7c383b8d4. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CAIM52000001.
Mike to the Rescue / Pigeon on the Gate / A Bright May Morning (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83d18a389dabc71e53dcd9491f94ff3e13be34ebedcc1ec36058bb9a47a5ba8. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/CAIM52000011.
Tunes With Troy: Robert Cormack of Aberdeen / Dr. Keith, Aberdeen / The Highlands of Banffshire / Archie Menzie / Dan Galbey / Saratoga (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901292578867c3c3f7784ca54253c8cb6738f2d37ee01031ac606c9a9528b58a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/CAIM52300010.