Thomas Leer (born Thomas Wishart, 1953) is a Scottish musician. He has released a number of albums and singles as a solo artist, and was also one half (the other being Claudia Brücken) of the 1980s el
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 0x519b1ab2035928ac6b844bc15df4bec1d242814e52c243c342c3b7e3f9396a9b. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/450d00fa-f58b-4663-b99e-e0b1acccf14e.json and https://artists.proofprofile.net/proofs/artist/450d00fa-f58b-4663-b99e-e0b1acccf14e.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 0xe993a61cebcefef8f25d05b25a85c57779755e1c8a068c417ea5ad4522d25bac. 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/GBR8R2100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad9f320b1592fd6a7fa0339e3c1ac3449aec9c8b925260b5d6f1eb3467bff95. 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/GBR8R2100212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e81d335720fdb94a4acbf258030996d06af6a390e3856fbd516d5dd649adcb3. 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/GBR8R2100213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce15b7006227cdd2316e2c936a1b1ea75b266c2448b23cff48f05b6104906bf. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBR8R2100210.
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 0x9a33606aba090f5ca10500306be9d8de85db431d592368b8f102227748ad3712. 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/GBR8R2100214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d13faaf57399834c92266f996211c395afcbbc62d83b51128f482ea03c57b60. 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/GBR8R2100215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1261a361f3fa92a9ff12bc8aee4c25a79e7f6b6dd0c7e12634168068a4758c8d. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBR8R2100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4988593a0599703168e5f6d57c145eaaff2338529db86918d85e74ba562f8db3. 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/GBR8R2100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31476ccfdc91ea3599c57b0b8e18bf9c13dfd777879572debaca97fe452bd34e. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBR8R2100218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591c3b03aed1786f75cffbfc8d423aab834030ea860415396fb76a2985371b6b. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/GBBLY1404980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44fe5b46d3f415bcfc769221d6b4e9a5d103b3862530666ac661c796e74b6e6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBARK0400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f328fc240171860b0f7411da2f97dc7842a20f257f47c31d2b96f571aa9960c. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBARK0400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d88b175802f0103e1a77cf5718c7fd0b245f69f32e9492dc00bb2f802516be3. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:25Z), 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/GBARK0400024.
Soul Jazz Records presents D-I-Y: DO-IT-YOURSELF - Punk, Post Punk, Punk Funk & Beyond: The Rise of the Independent Music Industry
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafb7aa3d4a234359fddf115ba95359eb25e1822719a556ba53c0a8092b999a0. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBBLY8100033.
"Fame" Jon Savage's Secret History of Post-Punk 1978-81
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60154d651dd6c311fa2b41927636f214de69a6d444e05e35111e678e293e6aae. 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/GBAJH0700079.