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 0xc0ad060d21dbaa6ad5e5d0cefe280aa03fc0267f089c8ff99e3ee82e16c2235e. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c302c2e8-1b26-4d04-8cfc-7f5e6e06689c.json and https://artists.proofprofile.net/proofs/artist/c302c2e8-1b26-4d04-8cfc-7f5e6e06689c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Legacy Of The Scottish Fiddle, Volume One
Miss Dumbreck/Miss Cameron Of Balvenie/Clydeside Lassies
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 0x3d248f79ba5aee4dfafa85ddb63cff0f8efd7acfae54629575ebbf5b2964bcf5. 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/USCQR0510035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6748779f019bb87fa49834478bb7d2a1fe759a56f3f91f3e4a2245a94317855. 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/USCQR0510036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bb693d5e0d3e2646c18c4a335dd3e520cab230f02e1992e787cedb6bfe912c. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USCQR0510037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1715c651825d7e18eac05329d9f2a4d25965f7d56b291b13a18bfdc2ae2e8c. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USCQR0510038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6309862a342e01b111c46f1d98438f143072b50f09e768172451ade4058794e. 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/USCQR0510039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a1aa1ddd71ea102fde42faca895aafe1f914c85004a889dd8d08e538225b65. 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/USCQR0510040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bab8a1e89f2413a7b431e5ab5130e8fe18b5119f42b8de4b9dd4c9c74daba5f. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/USCQR0510041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a41d3d5cac7dd014ef531970594d9165445dbcc3881f88a5d448ededeb5da6. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USCQR0510042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0fe67d0bf08a5559c7abd1eccdd5fc5b1fb5f8388d28c0f4cf0caf1656b94c. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USCQR0510043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07429afbac53cd6340de9ccad4640df2aab06f48eacb7dc18d31a3f061a25bfc. 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/USCQR0510044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb3399a38ae2633c50a9a2fa11808b29bf50eb10029a7070e0f9f33b1eb6adb. 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/USCQR0510045.
Lady Charlotte Campbell's New Strathspey/Lady Charlotte Campbell's Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6185e925e61a72baf5e4f0f290d0d32b2fe87ab9f9586a5e68e76ef1cf67b9df. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USCQR0510046.
Miss Hannah Of Elgin/Sir George Clark Of Penicuik/Major L. Stewart Of The Islan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbc0d3b9cc806108815aea230a326256c25a9d2340fb862b4ec362372fe7322. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USCQR0510047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5ff9ff4c6af6e5cda27229b2a60d7de9c79f87a2f32ae85bf8a69258990478. 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/USCQR0510048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860bb0cc8b01b3418560139d9c8a97a50a5f21e2c52ae38eaa127f79d4e84b98. 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/USCQR0510049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993f97ad63808441e7221e8329e4747a501d746b01e196a575f86afbd9fc66f4. 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/USCQR0510050.
Da Forfeit O' Da Ship/Da Grocer/Jack Is Yet Alive
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e85caea44302ef0f724871d16f26ec251f641f65f662d1f179c8053e30466ba. 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/USCQR0510051.
Mr. A. G. Wilken's Favourite/Jennie Hardie's Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a54303db191ecf069d9d3d5d55fb55d4130133072bd7cbee23b4bd5a9faa782. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USCQR0510052.
Mrs. Major L. Stewart Of The Island Of Java
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b11e9a277d17f5a5c4e4dd891c48e59469aa1439bb0ee07625caa8873013fc. 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/USCQR0510053.
The Iron Man/The Smith's A Gallant Fireman/The Forth Bridge Reel/Gillan's Reel/
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103df82da92793fb23bbd39125892cbc395ca37402e875e790bde1ca588074ad. 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/USCQR0510054.
Niel Gow's Lament For The Death Of His Second Wife
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5090666fa157a4d5ebc93579b7fae3ce04067fb1e809f68aaa87c01b8da998db. 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/USCQR0510055.
The Scolding Wives Of Abertarff, I'll Break Your Head For You, Catch And Kiss T
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53afa244b77bb91ac8affd22a4367cb2404fe6a7ce564cef496946e00c8546ee. 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/USCQR0510177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d15aa065f98de4e9744de237533d1d2520827c9011aee85e1dc26e6d652bb49. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USCQR0510178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003c1f3af3115fd039371f669a209fe98082d694e8a96eea11826b9d69fa5b25. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USCQR0510179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b51d56f607aeb9f093735cae4b6a234f1e204e6b3c9ac064c7a2b2daef76539. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USCQR0510180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9538cf8d22aa5c2e3b067449a29afc516c664ba0aec8bb70c400ede242c565. 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/USCQR0510181.
The J.B. Reel, The Shepherdess, The J.B. Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cef6c165d6be62a8ad0b2eeb03f390f7af21f6b438e498f30782ee8fdb6d6b. 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/USCQR0510182.
Harris Dance, Skye Dance, Lochiel's Awa' Tae France, Harris Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d542adef1f899576008df72e2867b38f88ab69772e980e4ae90c780fe469f16. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USCQR0510183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03661b30128f83514a2fd576e90a0e0f538f901f3949b99b2f2f4f63a5cf381. 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/USCQR0510184.