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 0x98eac6e435ba899c8267a752ed217b912540ee8eb431e715823190ad638e472a. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/979f5750-f1df-4000-bc5d-41c39a9669b2.json and https://artists.proofprofile.net/proofs/artist/979f5750-f1df-4000-bc5d-41c39a9669b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Rose in the Heather / The Killavil Jig / An Buachaillín Buí
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 0xee2196be87682b6ecafb8eeae6645a94921d929bd1d0c95e0592a657b1325511. 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/USHM21637662.
The Fog on the Hill / Dave White's / Peg McGrath's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2aed83b6c69b54354b5ea1931ab21ab27eb28c3256d6935b23e25bf4708b5a. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USHM21637663.
Stack of Oats / Nellie, Your Favour I'm Afraid I'll Not Gain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b69f2e6bf4fc8a842f7335efb52c6786649a53e5c799e7cbf46976eef9a9c5. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USHM21637664.
Planxty Davis / The Queen of May / Johnny Henry's Favourite
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfea8dd5e1eccf8d6a5bd7c2fe3a30433a82d387b9eb5b1c4203db934c50010e. 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/USHM21637665.
The Rolling Hills of Brosna / Colonel McBain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309ad91168e72fede5fb9a38a1dc069254c2bf1013cd64362d91b40e14cd1f4d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USHM21637666.
The Fox in the Thatch / The Snow on the Mountain / Killyglass Lakes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25ec8c9d421fc2407fd8c4d92728ee861796691c8f3849a623f9d0ff4bc6be2. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USHM21637667.
The Galway Rambler / The Morning Dew / The Boston Sligo Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284bdb58eaeb54e567719258126796e3b0e77137b1d3292d56e37a5a0f49f830. 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/USHM21637668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af425b4b24df24f9d6be3adea43b74a257f8d9bb90e0264962e91fa26fcc9f9. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USHM21637669.
The Three Sisters Reel / Tap the Barrel / The Killavil Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5c819a1afe52a14473b91931cb8db253acaa2a9049a81df487d508c453a470. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USHM21637670.
The Munster Jig / Old Hag, You Have Killed Me / The Humours of Lisheen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd826174ee14a20a8532939b3263ea9ea39e9a0ce4885105cc10adae186364b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USHM21637671.
Forget Me Not / McHugh's Reel / The Missing Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49442ab738f35006b691b935a2c71be2515bb333fdb5fe24475c7e0661ac32b4. 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/USHM21637672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d24bee6f3d9100917c9f58f66b4ad9adedf8ecab2ed95c655f29638d03d80b7. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USHM21637673.
The Bold Thady Quill / The Boys of Tandragee / Celia's Jig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489332e521f2134e83fc9a5aa07c973b47e8cbb721c13d2c6d68bb2e053d1c2e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USHM21637674.
John Kelly's / Patsy Touhey's Rip the Calico / The New Line to Loughaun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ee9aeb4cdaa9b4ef2a04f9f4ac564996ac447c96b6c61cee69e666b950db41. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USHM21637675.
The New Found Out/the Drunken Landlady/the Thrush in the Storm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e7871cf1ef4101f6b201d8481a535223f43cc178d68d7dd6fd793a98aa54bf. 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/IEAUV0500032.
Billy Mccormack’s/an Seanduine Dóite/maguire’s Kick
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7034ae9798a22b3871268f120dd2a45d682554857394cbb7322aa9e3a22a19. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/IEAUV0500033.
Her Long Golden Hair/the Cameronian Highlander
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e648567a1e0e110eefce90d910f17043e6dc80c92d1d458d3c627740fbbee9. 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/IEAUV0500034.
The Road to Cree/john Egan’s/sarah Hobbs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9de1c48c8c6963bd3c3ac20a475ff650500b1ed4c25373965fc421c0d52b809. 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/IEAUV0500035.
Mike Rafferty’s/bímis Ag ÓL/the Lark On the Strand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3444613706e085fa427e2ec62d9cd326392852069eda1b1493e890c9f07f2ae7. 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/IEAUV0500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643eb73cebe2eb1d37d35e9cd47305e10fbc48eb5b2b2eafbfa3cf025277b5f1. 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/IEAUV0500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69d37f4db1e96d1da25d5b99d99af3fb726efd8a2dd9662a7b45d4d3e12d8de. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/IEAUV0500038.
The Bag of Spuds/a View From Across the Valley/the Galway Ramble
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9480c1582e82b08782904f728fef07679e1db5fb08f3e8d9a5f309e6e50b1c70. 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/IEAUV0500039.
The Whistler At the Wake/the Humours of Glynn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94603d3415f51a29906a548d8f997c8e22d94a8c54a02b3943fbd04684a6894a. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/IEAUV0500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37d8553ea8099493682b0122092cc408359c3e5ce56a8061d580e06cd9a2fe4. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/IEAUV0500041.
Lady Gordon/the Rainy Day/ Barr Na Cúille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48bfbb4a14a8a17f2869f2b57423ece5bae06c314f421ffa3df76a12eab03c9. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/IEAUV0500042.
The Shaskeen Jig/the Banks of Lough Gowna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd188c24c64dd7e06827ad61b1cb282a34c8c9ae35594868ff6060962d4fff2a7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/IEAUV0500043.
The Green Mountain/the Hearty Bucks of Oranmore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1b2b40a4ab6b18df43191f424e6c39b3ecb1326d4c62c550e9a37ab8fe2a0a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IEAUV0500044.
Padraig O’keefe’s 1 & 2/the Humours of Ballydaly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7a0555ea31cc5723089f5d30739baecc7a74506f951db0f1f99e37317e6539. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/IEAUV0500045.
Gathering Sheep/lad O’beirne’s/paddy Is Gone to France
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab97144ed083f727186c7cda01c96952349f9ff052bd812aea2cb62d16211d0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/IEAUV0500046.
Páidín O’rafferty/john Mchugh’s/the Fog in the Bog
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e719b66d6b256e6b085649b11fd8909f0879ae7a6ab0eedae74cc838017591d. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/IEAUV0500047.
The Leitrim Lilter/patsy Touhy’s/the First Month of Spring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3082fd68397e6dd39f51af0e10e5c2ba171174e250e48efdbc5fcfd0ac58d89. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/IEAUV0500048.