Alexander J. Phinn (4 June 1944 – 16 November 2018), known professionally as Alec Finn, was a British-born traditional musician who is famous for his unique style of accompaniment on the bouzouki. 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a475acbdae21a3007a07e3be5e815a04d61c2d26e5b4c762f0b24ee09b15508. 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/05232fe9-8d61-4a7f-b57d-f2ba4dcbbe33.json and https://artists.proofprofile.net/proofs/artist/05232fe9-8d61-4a7f-b57d-f2ba4dcbbe33.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb68489056c7de3e3bbe7a4ced2955a51281fc5b6eb4fc4418c318a499dd650. 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/IEJGK1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d128d601a205a5c094860afe176baac442ab2d76a1177fa43c08c087560ce4e. 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/IEJGK1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0140c2b569828364e600fc4d1184b8183a6c9015180fadce4acabb28d0719209. 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/IEJGK1800005.
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 0x89e4c99ad364987b068d13e84aa7aaf53826d717b0263c3553963e91d17324d0. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/IEJGK1800010.
Masters Of Irish Music: Frankie Gavin & Alec Finn
Martin Wynne's, Austin Tierney's (Reels)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0e9c22abe07c419f51f2a4df6fd98c02307f05cbddc6d6915475e1ab7a6691. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA560556272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b499cf3f0b89e6c51e17dcbb047b3c98b3b91db906cb56bc5492fe7d955dfb4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA560556273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50e6d8408708f16867581325a1433705c92025c75135bbf98d01edfdd10fac2. 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/USA560556274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86f420b62e91fa815567217dbea55de81a3c711161cea2f693aa85a843673a1. 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/USA560556275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88e27abaa7393f3fd1461c2e327f254bcc6a212e0233f00efcef06458ebd17f. 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/USA560556278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea08d9a865ad56b7c4194b90ecc3eece1dfad522b49cda88058efdd24ba5575. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA560556279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfd221bd357398e576c903182379e6202ccbc4f88ecbbc2c725ea3b5ec086ba. 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/USA560556276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207a944ca938e80d8eca8e804ddd0a401672cfe449ccb1f72e3b3eeb13815cdf. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/USA560556277.
The Bunch of Green Rushes, Sean Frank (Reels)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3578035af5b555f595f91c9b40b9fc9779059a8007fb14758472a263296d291. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USA560556280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473ed4b4a4d07c280c282cc446d84bda9cc86ff6fcbd8fcf5f90fd47fb199b43. 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/USA560556281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18ddc48f2a98cf8a0b6560338b60fe6e4f648fa47835a92a18cf74a02ccf193. 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/USA560556282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492c9579d8790cca845f7ef25755ff283fa0fb3d4f8b7ed0f0f5f5b41b0000fc. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USA560556283.