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 0x0704035fc8747414ec395492ba4643bf938de37db3cae2c38b83b39cfc3e19dd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdc808d3-60de-456b-8cf8-7c97610ed2ec.json and https://artists.proofprofile.net/proofs/artist/fdc808d3-60de-456b-8cf8-7c97610ed2ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Noel Hill & Tony Linnane (Remastered 2020)
Humours Of Ballyconnell / Drunken Landlady / Ryan's Reel - Remastered 2020
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 0xa9b9e0bbffe9a84db3ad3c24175a5879327dc7e1971726a2571647bd65a76058. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:35:07Z), 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/IEUM72000074.
Anderson's Reel / Carthy's / Sweeney's Dream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35420710bec1d228e1730941ba089e2a64f4f0cd929b0a0cdb6b7e19705bc3be. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/IEUM72000071.
Scotsman Over The Border / Tom Billy's Jig - Remastered 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6d91f884a8c05ec4a5882cefdd79e5c36016de88918c03cdbbe491bb6f7204. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IEUM72000079.
Daniel O'Connell - The Home Ruler / Kitty's Wedding - Remastered 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758f64d4f94d5401c12f2f1e1e63531c57ea7e263391447905c7d6c7e7d21fc7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IEUM72000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ad4bec4a7db9450508a1404dfccc050f8d3d188410dda93b0c40d2ca35ffa3. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/USA371006253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc0761525758939104e8e91054f257b0c21b4ff512f592d3663c334fddaf2a3. 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/USA371006255.
The Irish Concertina 3: Live in New York
Old Tipperary / Down the Back Lane - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d288d0433854eedf6dd699fc75ea3aa6504e35bfa726808b8bfcf3999a61aac. 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/USA371006616.
The Maids of Castlebar / The Collier's Reel - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194a17d11b7159305bbe3cb3ad7a0ed50ddd1da0ac1c3ab6f17bed7aa4dffead. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IEAOR1200045.
Lilies In The Field / The Limerick Lassies - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250ca7adfde0923ca9fdb6bb20a905bbbbb92bcc733194982ac0174c6cac3d4d. 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/IEAOR1200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9930abab8e00ce0a09c3ae567e863aeb61379d1944f006265b46e0f93cc69f26. 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/IEAOR1200050.
The Rainy Day / The Merry Blacksmith / The Silver Spear - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46d5e2367bc9a8f89dc51b6bfb8fe87ec05cb99d4ba22338b01efb150100bca. 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/IEAOR1200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3268ff9f6d5b8326cc0430ca1d0ab53544fdea68c96d64542096be5fb5df7769. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/IEAOR1200048.
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 0xfa64d420b83cb0cc5d73ec03372341cd291ae711a87964db669877f1bc2cc0ee. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/IEAOR1200053.
The Lark In The Morning / Joe Cooley's Jig - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e039609a5bec04b8b5f4a180cba6521d53179fb84966e512a57c0472cbabe1. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/IEAOR1200055.
The Bag of Potatoes / The Bird On the Tree - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b99bf5b0e30d7428ff0a24dc5229544409d97ba5a7b1048ceacf0899997dce9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/IEAOR1200056.
The Fair Haired Boy / The High Reel - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876ec386a206c96b4ff1bfec98294d6584b2321e6faafab6448ed78a2f303604. 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/IEAOR1200057.