22-20s were an English blues rock band, formed in 2002 in Sleaford, Lincolnshire. The band originally disbanded in December 2005 before reforming in 2008 and releasing Shake/Shiver/Moan in 2010 and Go
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 0x0511720728ea7f8f5f47798e01d980fb5ac4f8e24d4140fcd9807a0c58f9c41c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c4eed6c-b7e9-488b-b441-be7c7c5308a5.json and https://artists.proofprofile.net/proofs/artist/7c4eed6c-b7e9-488b-b441-be7c7c5308a5.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 0x27c5d160658df9963a8ac7416d0e6c0da04ea8560d2edee58163a2457970e5de. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/GBDGG0400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1200f7617e4fa57d819079ce55ee588e296c02e5d5b7d966a6c9e92ca20a2f7. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/GBDGG0400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a943f1f2ed57cc27a4ab5eaf012bc1b3c1b754172d8f34c6e88da2f6bef7f9d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBDGG0400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810737bea7cc3b59204ebbc0d2b767a58c15c50586ffb8906d2ea84c48a5d5a4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:27:01Z), 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/GBDGG0400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8806527da2e21f7849a596215214f4f2727f995255800917951d92a02d84532e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBDGG0400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a8896595f81e6424c4ba3b395d46f4bbe2e0e91e1fc6f9b3cefe26d9972234. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBDGG0400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6813367db4957fbcfed514dbb702e9267d53d80eac1c674b0b17445dcfff2871. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GB8AW1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187e57d03a6d9de86810e67b880ec42a1618b3c68f14ceac7ba338f1989295a0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GB8AW1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a348df79b438fe425a17505501d2ad17e045899619d1e055d05a392294e9096. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GB8AW1000011.