Great Cynics were a punk rock group based in London, England. History Formation and debut album Great Cynics initially started out as a solo project for Brighton based singer-songwriter Giles Bidde
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 0x0db9edeea55d7b21d173468ca39c3e7b604f0beea0cd99863707c113ab63a8fc. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fb10344-e286-490e-be33-442eac5e79de.json and https://artists.proofprofile.net/proofs/artist/3fb10344-e286-490e-be33-442eac5e79de.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 0xf488e22019febc6d1192ba80fc7d0f6931d7f7a0275bc6ad6f0ed963d59f2c54. 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/GB64T1402401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3288e32d9a70ae5fea59ea3d1e902d1636689c0aab05de7547094308b8b9d437. 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/GB64T1402403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09a3722d5c8f07ea9847351c8e2da400dd434967c1586799e39e8670d99a516. 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/GB64T1402404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2487769f16154d2f03909628bd57dac6cb7cc6fe8c2778eb553a8c63207217. 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/GB64T1402405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b12af658f450ba1c77717ad63616cb730b5ed3789b9e014354480d24b65521. 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/CAE561712401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1698bd2611300c064af190ac956503fd1a60024a08309480aa4bf70d08e478eb. 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/CAE561712415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58462cd6516c916d92bf5563c72458db8d1c65e5e9b8faa050d445a021e267a. 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/GB64T1503303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb48a12c65f7f3b40245d74f2f438dd8b492519e1cd83c4bf24601f1142a8d3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GB64T1503301.
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 0x2ca5436bc8612fbcba089497b6f53a8cbbc8bc73ab843380d85bc49faffc90f6. 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/GB64T1503307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bc49911a0a33f4da523aa3edf19a1bca9796980968e6227b48cb625cd3d72a. 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/GBQLU1200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508f4de14d17f0c1a7dbf3063fcb98be97b7a6fa1f327f87add73ac375a8a134. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBQLU1200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850659c8f2177cefb5ca28b9fb3a0f5d074a3de48c6945a8dac25079ff05baea. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBQLU1200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4395edb1a4c133a9bfc548a0376671e0e1f244307e850f463023ca582221864. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBQLU1200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f274c66f7702427ef97b5e0c38074d715fdc44fa39adf423f56c856e6b6cdc. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBQLU1200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9b49121f9a74a8d573c72b3552e6d71e99c913b60dba991e8a83b221e3968f. 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/GBQLU1200078.