Bitter Ruin are an English "experimental pop" duo from Brighton, UK, formed in 2007 by Georgia Train (lead vocals, backing vocals, piano) and Ben Richards (lead vocals, backing vocals, guitar, piano,
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 0x31624315079f58716d32f72c0a920a7f91eec6004c485c523a2297d8556adbf1. 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/62539a2d-db7b-4181-928e-8c7970e4d4c0.json and https://artists.proofprofile.net/proofs/artist/62539a2d-db7b-4181-928e-8c7970e4d4c0.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 0x8c812312c201e20e124d2e0586a039d4a655a1175d08be34b6e814cced41d672. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:56:59Z), 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/GB94P1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54bdb2eb56ac11619f0920d3ed5cdeb303ca9c6562113701483fa0ab0b95071. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAEC1919143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55c5f9e6a4a69c59e9518d778c5f82213c1cda1b50d0522dc7f83781762f343. 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/TCAEU2032215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88596ebd83d0742147cb4d463ee04ee70d7e46215f0aea95b09b776dddc078eb. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:28:20Z), 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/TCAFM2163958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d25b67894c028b46b3904618905f3a4a77b3453886cea7e366e6c8eb745204. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCAHH2390509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcce460429c8689573b25ad82568b17149c5d0786d1dd77c6d39e7367d346cbe. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCAHH2390615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c947f42659c204b9932a6f1a42df2900a92cfa06e80cdca1d84ad4615dc1131. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAHH2390683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc503d443bc92f9f82db59081385974412a0d2c4436b2c9c871703e935364b4e7. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/TCAHH2390685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12198efada232710ab86bf8fe5c01f504ed99270b12323af05da5a78d47ac811. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/TCAIW2488658.