Alasdair Fraser (born 14 May 1955, Clackmannan, Scotland) is a Scottish fiddler, composer, performer, and recording artist. Fraser operates Culburnie Records and is a leading artist on the label. He
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 0xa2a6e931fb613f17f7250a0dbe136f610407569d8e244e420fdcb2939bc39270. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d493046d-4e0d-4a86-a56a-8a0de572fe7c.json and https://artists.proofprofile.net/proofs/artist/d493046d-4e0d-4a86-a56a-8a0de572fe7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x88f6706ab1453ba362282b3c103a6c3851a710e09056436bd4e12b017ea2456f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USNA19810662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bc1d4f01cc62d3ef4be529965b9104df9b458c04869b9b7ed463e0ebc43c68. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAKS0500925.
Ceol Tacsi (Exclusive Live Performances From Over 50 Of The World'S Finest Celtic Musicians Featured In The Award Winning Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca567ec786ec671d18c34009a761c190c09a1d06e7537210f59a7e9edee68cba. 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/GBDFK9900022.
Niel Gow's Lament for the Death of His Second Wife
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486a5acedd890f26ebcc23259c857d9d3f9c29e5adbfc3a04b8101267091adff. 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/USAKS1500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ccf5e85b401ced42721825efdf70c63b900bc5950d7738352d971eb5c7b2da. 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/USCQR0510100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d3bf0b7eba41eb89d51934b4d8e8e5fd93870a086756373bab71b61f38b1cb. 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/USCQR0510101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1160f24de42faa6bd50f6de62285ff10959dabcf6dc2853829d396dd543334e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USCQR0510102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8918894ef674399a9ef22929228c6be36ea0ad8d68d822e2bb4f1b86192eea. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USCQR0510103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3626f63fa95166a4ec4b55dc4ea1ec3b19f247b985ee5d0dc243859565c6b2. 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/USCQR0510104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0d0c7422f0e1cc1afd0e5620cd4249db9d2aeb0289b6d2fef38b9200a7b341. 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/USCQR0510105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3e03ceb314c2f4605300f04b4b5826ce950af9b30dd7d69bcd2f74debae421. 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/USCQR0510106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f06ec3de7dd5153381b3ca298b346f370bbf23a96a02b990f9ab2e5f1a2dcc0. 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/USCQR0510107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3e71816722a1bb31058ad1764fbadafcb9729cd75c1bb4dd68dadbff69c0b9. 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/USCQR0510108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cea0e32bf8de905a92147871526f28e2b0759b99fe98de35c18f4e159236e95. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USCQR0510109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4bf02a700f84e1de11eded195221c6ef363fd4c0adf34eaefeec6d62240588. 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/USCQR0510110.