The Delgados was a Scottish indie rock band formed in Glasgow in 1994. The band was composed of Alun Woodward (vocals, guitar), Emma Pollock (vocals, guitar), Stewart Henderson (bass guitar), and Paul
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 0xc0fd490ad9bf031b86777287aecded22a10a9f0ff0cc6c503073c57b2511f6c6. 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/1dd14271-45f9-4ad9-9181-c4ffac34c261.json and https://artists.proofprofile.net/proofs/artist/1dd14271-45f9-4ad9-9181-c4ffac34c261.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 0x95a57d47b19358859beca558cd0bda8a11878404551ee2868b715f6546998cd0. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:59:42Z), 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/GBCGR9810005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1de9d0bb8e475bf66ee86fe7d1d4e5ac62c41e4765b2f03c2468be60e64b74. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:46:05Z), 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/GBBKU9800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120821ee2342a467628811cac57ecbf85a246af659991afa56816363dd865d6a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBBKU9800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ad085a447e8951dbcf017e318e4afdc2ee2c2d9726b81b0b825b0cafe4c303. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBBKU9900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1c361ecf0bfe9663ca58f5c97e0452959d9878b6ce135ffd7eac59544ab19e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBBKU9900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547ec95e1ace9008c4c5a286744e70c72bd0ccd726b8bf3caa5e1fe70a3624c8. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:10:50Z), 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/GBBKU9900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d096b995d37b9a41ec7719d85f0a1c861cffd191c48d979416df55c5c115d7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBCGR0010001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d5ac26769346fbd8d7d8a17f36ecca8a9b8b5976ef8d68de0e199584ea64b2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBCGR0010002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a88ce61e3bbdb9a95933a0df28924c0677deb166d988e2f84c4a6e27075756. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:52:09Z), 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/GBBKU0200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27504a83d877093800a90e7a71f4d0d1737e1bc1d960c166c398278a90671a9. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:09:04Z), 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/GBBKU0200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde219a4f681d78a5b7d13a586f83c09123e3ef84ea5f76d8b24f594355142db3. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:20:49Z), 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/GBBKU0200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3e6d32578e9e36ee49c29b7617d5421c9802b133f32641fcc814517df11c79. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBBKU0200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09d37573e297f06ab4a85908a06e61d1ce64f0ce3125c7b9ac24a9e742203c5. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GBBKU0200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59594d8debb5f92e69a81561f61f34d932e3ad630cbd196e5f45b45170adf94. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:33:58Z), 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/GBBKU0200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1be52f87623d89a217b3d4a8e664364e9aba62f492dbc0bd5d11492893c4e5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBCGR0410004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf123bb1acb9e09f4c37d7a68d07f548f2777fda2035a8972e93ef787e4b5e0a5. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:23:24Z), 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/GBCGR0410011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1be52f87623d89a217b3d4a8e664364e9aba62f492dbc0bd5d11492893c4e5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:56:18Z), 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/GBCGR0410004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5fe79ce10ac611161720c3037b24466fb01b644f60fcc67e85fa6c7a977fd4. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBCAD0604083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8115162dc4017ca130ea7db6b44e8501beec6142179e5d04ed7cf3ba45f50b86. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:39:44Z), 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/GBCAD0604093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf1cd4e4c1c631c8e667905dd763b40e999dd7e5094f84b643f72d926b1018e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBCAD0604094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d2ec457874e48d857c973db22cbd00281329689a58f16663b41d70d6f46861. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GBCAD0604084.