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 0xf9fd71e502392168070e5855c4066cc60f332517a69750ae5047cc863d175462. 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/cb77a6c4-2280-4a92-b02b-8a0f035878ce.json and https://artists.proofprofile.net/proofs/artist/cb77a6c4-2280-4a92-b02b-8a0f035878ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x3a0cb9a49a8778f262041c05fd97d770b5a492fb522190d968c137632a307449. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBCVZ1800148.
A Bhriogais Uallach / Highean Donn nan Gobhar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3b0996aeaa0b237699e3548bc65d9dad0a455db2d8b967bb55281736c3cf3a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBCVZ1800149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8ba9b846f105c52da910059c8e4a77362baa685f7ecf3f0799a7a24e6ea915. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBCVZ1800150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9513cda68f29f4ad192118f618de550266e5ce26c76c6209ed8117ecc7cbdf. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBCVZ1800151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1467b4132985874f84a8dc6607e66a46b0155815052b76c8ffdb2b532740a659. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBCVZ1800152.
The Old Woman's Dance / The Skylarks's Ascension
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2a06b6856dd1ee5832dc86a1d0911223e8e195eb78b4546ad917e7b35736fa. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBCVZ1800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eb9e4652556c2a6aebee62b41d74e86e81aab3c9647922686a014a4eb4147d. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/GBCVZ1800158.
Tha Fonn Gun Bhi Trom (I Am Disposed of Mirth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861ee216062510e958a777f4c797e7ae0ba9159343c778c6d328d10494a84e4d. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DETP62200194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72362acb18198c9b2c02db391fb0981cd407be3ae4078f8b8602ec7d3b7bc6f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/DETP62200195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5271fc9a30297d8be0ec29d1dbfd69a5b368b94319cc19d1bbe7e93518997646. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DETP62200196.
Òran an Eich-Uisge (Song of the Waterhorse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48af16680eca632be46c3fedf403bd0aa655df1d1fbb274973f383c96645597e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DETP62200197.
'S Mi Gabhail an Rathaid (I Take the Road)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c97c1d013f6fdaa759c54b5851e155ee217a3f5694ae16f7b6cd5c7c8e8d8a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DETP62200198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa179cf9122485133cfddf642acbd56062bcaa6ddaee7e7d13decd42f9620ec71. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/DETP62200199.
Green Light Set: Green Light of the Lonely Souls / Bob the Banter / Peel Pier Fear / Castlerock Road
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44243cf792caacc7e4c7f82d5cad1e9f05ffe9edb944baacb3b52206ef42f58e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/CAIM51800007.
Rattlin Roarin Wullie / The Deil's Awa Wi' Th'exciseman / Kelly Macinnes' / Lord Macdonald's / Mary Ann Macisaac's - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6defcea6216182d9d22e0f6cf4827afe289a1d954e19c1a973d37304f7edbe51. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBPXZ1500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d47141e8dfc4ad8fa8033cf44d28a9012611f3b66af85a0a1ace78130daf8f2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMAN92300008.