Joseph McLaughlin (23 March 1917 – 15 October 1999), known professionally as Josef Locke, was an Irish tenor. He was successful in the United Kingdom and Ireland in the 1940s and 1950s. Background Bo
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 0x5f8fdb050f3f70e49e31b3cb8fd3b8a365b116203885d363308d4ec467e27957. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e042b3d-5c69-473e-9256-15915d3a2f15.json and https://artists.proofprofile.net/proofs/artist/5e042b3d-5c69-473e-9256-15915d3a2f15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Irish Tenors Collection - 25 Irish Favourites (Remastered Extended Edition)
Three of a Kind: John Hanson, Josef Locke, John McCormack
Two of a Kind: Josef Locke & John McCormack
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 0xe417ae139e4ebee3ec3f680bcb42c39917b47a2d1f5e5a19a410a417656caf41. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXO32099210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9e651e380b4b08be29a959e3a767b6d50dbb10049077f69b6efaebc76c390d. 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/DEXO32099213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d191c918dbad5658391918224c6df1919a4668726be32cf2ffab89ec97c3643. 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/USQY51607264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6836a4f4a1298ff41d9dc23db2c354fe60d468cdd01fdc2f0d75db4b7c61330. 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/USQY51607269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d308a3bd74ecb8a72fecbea611383dc6b5cd1f9d5b7522b71cd9f9496631cbe. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/USQY51607266.
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 0xb4c7904f5e7f15a1ffb2b4894779c879e60bdb8c2727f3382ece92d405272dd7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USQY51607284.
Your Irish Favourites, Vol. 2 (Remastered Special Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919ab82604b3c2ccbe917c68133685a439e6490b6c0fe95c3ed23ff9fa9d9845. 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/QMFMG1408737.
Your Irish Favourites, Vol. 1 (Remastered Special Edition)
Your Irish Favourites (Remastered Extended Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767d7873b7957fb0a8385f31f159ceac8c59ba0f966c491cfed3a36589816353. 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/IEAAR9600349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0558a68562d9f334cbaa9e841ba5b79ea28c6fe319dfaaa74a904a4f912b4fe8. 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/IEAAR9600355.
Hear My Song - The Definitive Collection, Vol. 1 (Special Extended Remastered Edition)
Those Were the Days; Vintage Irish Tenors
The Complete 1950's Masters - Josef Locke
Forever Gold - Hear My Song Violetta (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9624ea2a7ed8613ed3ab0db6bebb510019f8efc4d3d952a72a0142550c7e270. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBHFP0902058.
Blaze Away! The Columbia Recordings 1947-55
Locke, Josef: Hear My Song, Violetta (1947-1950)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd618194c9d8807e61ee95812860996670c382a476da649984e884840324de963. 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/HKI190105107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e29d07e2790171246c6a258f1483852528983d193d1eef515714e1832d35fad. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/HKI190105110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4d54071f526928b909c39334c3d974cbba8c81cb1ce486aab837b3cfd92ce5. 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/HKI190105113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c67e1c1cdac8fad94068f640249f8e6ef861a771d09844c85eca5025e7d636. 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/USAFM0800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a7b4035091d01e156520ffd8cb92011253f98bdb9f567e02788e90ac17b319. 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/GBHFP0905898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1f75c83326a9cba474f9167b09e0e3b085bfe58724f42ef42b114fa6b5ea0f. 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/GBHFP0905921.