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 0xa59a214729cdcb77c711b38c40f5459dbb68938b98cafedf6b4c2de704ff4bb4. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcc9bc76-507d-405a-a237-eb983842a5ae.json and https://artists.proofprofile.net/proofs/artist/bcc9bc76-507d-405a-a237-eb983842a5ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music on the Wind / Upwards to Souris / Báitheadh Bhruclais
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 0x0a41ca935d7c4289316a7f81eb811ab9bd7c2f15ee251fdbde033034b3032f7e. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/USHM82477114.
Finbarr Dwyer’s / The mill of Kylemore / Pretty Molly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572bc88d512e3d671d355180651c9e8640cc46ab26b7131621a45f536b94565c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/USHM82477115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3721f75623f3a4b87e16628f3018c7cf582ce1bb96345bb36a244f522050a1f. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USHM82477118.
McKenna Country / Ferny Hill / Grist for the mill
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4179301b212a9a5d539917699b7ac8205b1b3fe269ed5000bf3b45ecd4c512. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USHM82477119.
The Sirius reel / The Garavogue / Pedalling patterns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1134d546fc4f407fe583bac3e7e995dbb95b16b4d0426604b5c62e4e903c205e. 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/USHM82477121.
Tom McElvogue’s / Tommy Doyle’s / Rosco’s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe971c92eff900852c8420f1569a6b333195605d06af87474675b561c9503e9c4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/IEYBT2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd570b4492d92cec5f51cd255bed31e294532420a7cd2d113db66d17b764beb71. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/IEYBT2400003.
All My Friends / Nutcracker / The Open Fence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc23298c610bd714bd2247d206ca76cab4753a49c21bc0d1f91be78bda9108f1. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/IEYBT2400004.
The Dooish / Frances Xavier Kennedy MacDonald / Old Tattered Fiddle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc739383b210b291bfd7628c51f87cf991d03f954bfdc3ca78936ce9d8427c4d2. 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/IEYBT2400005.
Stranger at the Gate / Eleanor Kane’s / Tom McElvogue’s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e5f53c1cbb4a787babbf007233d53f4b58e2a089210af044987f459d595d4d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/IEYBT2400007.
Will you come down to Limerick / The Tripper / The Rumours of a Dart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f4fa3d3fd85bcd392afb16a543c0ae638c074e5c459316f69655ec04385200. 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/IEYBT2400008.
Starry Lane to Monaghan / Round the House and Mind the Dresser / Good Boy Yourself
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fc1ca59cd667e6b49524e07365b3fa430ea333d99e5fa00c712302adb324b2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IEYBT2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa195de3e9422f8e887b329d43a8cfb8bf6ad407ed354c5f48bb2efec9077c71c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/IEYBT2400012.
Downtown Troy / Haul Away the Hawser / Distant Colours (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b718606a8e91a5bb147243db3bf3493599f68544d828e8d22db8697a7dde33. 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/CAIM52000003.