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 0x7f8c3464c1eb726a9a3eb8eb792a42a031e163aa9de53e5f0d9a6a7338d55f4f. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7098b27a-cfde-4375-927f-98caa2432ade.json and https://artists.proofprofile.net/proofs/artist/7098b27a-cfde-4375-927f-98caa2432ade.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pride of Murray Pipe Band: Flower of Scotland - Best of Pipes and Drums
Wings - Marie's Wedding - 51st Highland Division - Rowan Tree
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 0x4a5515dbe865a94ea4f34ccbe0e2880c080f1256cb6a7fff7bd7880b461674ef. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/GBCKG0501094.
Morag of Dunvegan - Paddy's Leather Breeches - Glasgow Police - Dovecote Park
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6e7ef8d849096a7ffe06835600a68b20668b76aa8dbb16593afe59ac830aac. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:55:22Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCKG0501095.
Bonnie Dundee Muckin' o' Geordie's Byre - Kenmure's up and awa' Willie - Hot Punch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b91c31cd1539c7a9dcd9b1df7d8f37b82d92d556d27e5c477689b00dec5a16. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:10:28Z), 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/GBCKG0501096.
Skye Boat Song - Cock o' the North - Glendaruel Highlanders
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb42307a5d96270b824b02dba5a51448e1b86f63b0c86fa62b6a775f0d8ac405. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/GBCKG0500337.
Hills of Sicily - Farewell to the Creeks - Leavin Port Askaig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d672324268e49e725a7786fa9043a3e8fc988406ac93a04a7e5202bb120a5b5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBCKG0500316.
Prince Edward Island - Laird o' Drumblair - Kirsty MacCallman’s Favourite - Poisoned Dwarf - Buntata's Sgadan - Setting a Course for Lewis - Thistle Down - The Boys of Ballymote - Isabelle Blackley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09e88ae2748c8f7ff6c929933295e19da060920563f592cc91b1efc0cee8b7a. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/GBCKG0501099.