David Garrick (29 January 1947 – 28 February 1985), better known by his stage name David Byron, was a British singer who was best known in the early 1970s as the original lead vocalist of the rock ban
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 0x8e1ceab78a5d7d7ece9432e4ed0469baee4b614dd9bfdefbdc5d669a8e9168ad. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48ebe740-fcb8-4165-bc43-68d9a9ff8a33.json and https://artists.proofprofile.net/proofs/artist/48ebe740-fcb8-4165-bc43-68d9a9ff8a33.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 0x0809793261da90b94c5895a1227b7c16523454e596edb20b08faf0743624be1e. 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/GBAJE7500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c4319964fb1fd3a476f73f318fa25ef6b8f005069b591fdcc1be28155b1db1. 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/GBAJE0505135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6a3190539fb5f1ddc48b4ba070de7472d46e4385051720c7b58065f9b99223. 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/GBAJE0505136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1e20deabeacc1e65b20d555d0d15261bb02468d25ea7394d120b5d7edc3324. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBAJE0505152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd534e9f6c3ec3e49696c006710e33e111b1771e9cf20001034b6db7c8e13f423. 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/GBAJE0505153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56423cea9e25b58f42e0b6f38098bd2786ace3cc731bd509ca7f01d1b505b4b. 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/GBAJE0505154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a6d38c1b9dce0eea5cd17c55bff237e4ea8cfd94bb3ac442d268a48dba1532. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBAJE0505155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb10d62524572301e9d3dcba63e2299dc71e3a70964ae693049d57d081ab8d0a. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GBAJE0505156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7afa5df68f0d83c19e9db5095e90731ab57391557aff0bf8dc27683b325ffe9. 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/GB5KW1501855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b406ec66864624dcb1b7161f73cfc6660ffb92dfc3be2747281e74aed96ce9b. 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/GB5KW1501857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f94eab2a896c18dc72fd40400dcf0f1736ce0cba7df8a118bef8623a612e37. 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/GBARL0500442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643caf86820b5fc78db6960bee5cbf2f60fe6a4c7ddc05ed6636d44cafa381b3. 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/GBARL0500451.