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 0xeae55743e02fc56bcba1163c34ed7fb94bc302a2374b0a6a4736981c71176a3e. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f957459a-0d2b-48c1-a8fb-1251b1bb3503.json and https://artists.proofprofile.net/proofs/artist/f957459a-0d2b-48c1-a8fb-1251b1bb3503.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Wind at the Window: Celtic and Gaelic Sacred Melodies
All Through The Night (Ar hyd y nos) - Arr. Catherine Strutt
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 0x16c8c2d4b762ff464bc70481bcf4366f1c0bddb4ab10d74cbea77bf92974263a. 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/AUAB01850533.
I Heard The Voice Of Jesus Say (Kingsfold) - Arr. Catherine Strutt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8549d54e26b88237bfc15064e447fecae025a63ad2eab81f9d680a85061e254f. 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/AUAB01850534.
How Are Thy Servants Blest, O Lord (Kilmarnock) - Arr. Catherine Strutt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6daa14d08d97b56a24b503d905fca8df1378c68b32054d3c809187e4ce2e213. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/AUAB01850535.
No Wind At The Window (Columcille) - Arr. Catherine Strutt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e53a8c55a73110d4bd99f5158e8885283b0178106d751114c9aea626324b85. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/AUAB01850536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49d63b7becdbd65f640569787525acb122088e4c018d74938affebe08e049fd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/AUAB01850539.
Country Carol (The Oxen) - Arr. Catherine Strutt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997d83d21b57ff72daf14a5b846abd16cdb6787872f2f5e5153973961e3d0053. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/AUAB01850540.
Morning Has Broken (Bunessan) - Arr. Catherine Strutt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c32c26d90143c8b4fbeaa64e4d19a1795833507ec9fc13fc2c07fbfe10b3cfd. 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/AUAB01850542.
The Red House: The Heritage of the Scottish Fiddle
Crabbit Shona Set: Crabbit Shona / Major Montgomerie's Quick Step / The Southwest Bridge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0957c9820d32148e9c8fa032cda019c21ba8135d1c1582249f9111f1ec97811. 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/AUAB00650597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dbc5eed81b6abd95e5cf9c7ba8fff85223a5ed13ea5538656caba6068bbaf7. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/AUAB00650601.
Red House Set: The Red House / Miss Russell of Blackhall / The Nine Pint Coggie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bbc6f29d35fd0d55a57f31e5acaef694b9c26b59871c5da0b3ceea9fe62537. 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/AUAB00650602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0806044156edc901c751e9c681eedc28a883fcf904e88f7cfa075a8211dd86. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/AUAB00650606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c32ed6c158fb3aeaea3d915b263a846db013ba2d80486f4f4495dcc0dd32b8a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/AUAB00650607.
Miss Mariane Oliphant Set: Miss Mariane Oliphant / Slängpolska Efter Byss-Calle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144961ef3e4bd7ba47f2b5ce54b228796e1a266981663fb7774d581a0d969653. 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/AUAB00650608.
Lady Eliza Lindsay Set: Lady Eliza Lindsay / Saratoga Hornpipe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c76ef43423b9998cdd49d87f09af70ca9f377253c22bc39de814d7c719f57a. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/AUAB00650612.
Farewell to Nigg Set: Farewell to Nigg / Paddy's Leather Breeches / The Fyrish Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48a40fb90e8a532c92ec40f7afb5026d59c64b9e4284a2da45b43634cfcac18. 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/AUAB00650615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b17689530fdede1cc721f1b4aa314fe64929ec15bee808138e9849960024e2. 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/AUAB00650620.
Reel Béatrice Set: Reel Béatrice / Catharsis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb43310f79306bca393cfae76fe082276a7c016bd5355876034265e546ddf1ed. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/AUAB00650621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa366623f9a1895299eb99bfc90bacff1fb77994c6b2aa861d0fa2babb8261fc1. 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/AUAB00650624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1015e48f5627f21c8172cb5af72d734771c680273147119ab2efb434b2aa8ffa. 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/AUAB00650629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036bb6c612ab5131eed31389df40053dd4409b6209ae9532b8961db2b22e1a66. 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/AUAB00650630.
Fyvie's Embrace: The Golden Age of the Scottish Fiddle
The Bonnie Lass o' Bon-Accord Set: The Bonnie Lass o' Bon-Accord - Tulchan Lodge - The Cameron Highlanders
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e101a67269ce058aad44b8141049df7391e4cef5663827a258a93480f36737. 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/AUAB09950070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b88b8f06804d09b13c0dfe656d066dedef63fd291d27d468abf4883d89384cd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUAB09950071.
The Haggis Set: What Care I for the Minister - The Haggis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d8318ec5363e448c56b69445463cd17a736530bec1b083e08e26e397e79097. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/AUAB09950072.
Lady Charlotte Campbell Set: Lady Charlotte Campbell - The Marquis of Huntly's Strathspey - Miss Louisa Duff - The Cross of Inverness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c524658da7fc7862f94787c9809c5134e506392bf9aaaac1664491a207c5697. 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/AUAB09950073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74afee912569b67a72d72a1ffa87e3c383062665fe26e2ec6ba0da5aa7bd8e6a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/AUAB09950074.
Miss McPherson Set: The Marchioness of Huntly's Favourite Jig - Miss McPherson Grant's Jig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732e7a8454a0b421a54596ee66bcfccecb4d289dee3ff6127123fc8103b98393. 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/AUAB09950075.
Nathaniel Gow's Lament on the Death of his Brother
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89445e34d1617d2d1e2145c379a0c966ffcfe46cde0566594ee95004d9cab007. 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/AUAB09950076.
The Highlandman Set: The Wedding Ring - The Highlandman Kissed His Mother
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f874e8b535fa3704b64bfeab94c69af51c5776aab7f1e04f93f9450acdfd0f0. 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/AUAB09950077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bfcab2810c906c899be4cac61352ad77f9cf0517a536ae878049d7ce7816ca. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/AUAB09950078.
Niel Gow's Lament for the Death of his Second Wife
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d1be3a8c91172882d7e9b8eb175ce0b5f4845f58781488fb94ba7b167db6e7. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/AUAB09950080.
The Merry Making Set: Catch and Kiss the Romp - The Merry Making
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d81b6de1448ec6ac8c3e3caa6925093b848abd4c1c9e37678a5c1fd3dce33ad. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/AUAB09950081.
The Fairy Dance Set: Mr Barnard - Miss Baird of Saughtonhall's Hornpipe - The Fairy Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a412edd7adc3760a8d4d22b74f111ca47ac39f235a1186a72ad5432a53e7af6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUAB09950083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b1bdc30eae5f646a6ff1e4ab7de2d9bbfc4bdb0d72310d0b820dc5bdaaf8e3. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/AUAB09950084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b44755a8146113c57b323e40ca34862b2b19650e55d23b49335ba7931a792e. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/AUAB09950085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa202e4325663ea36030064dcef6f65e673f42898f96046056e20a8c3975c96a5. 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/AUAB09950087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b88b8f06804d09b13c0dfe656d066dedef63fd291d27d468abf4883d89384cd. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/AUAB09950071.
The Fairy Dance Medley: Mr Barnard / Miss Baird of Saughtonhall’s Hornpipe / The Fairy Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a412edd7adc3760a8d4d22b74f111ca47ac39f235a1186a72ad5432a53e7af6. 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/AUAB09950083.