Brian Etheridge may refer to: Brian Etheridge, character in comic book series V for Vendetta Brian Etheridge (footballer) (born 1944), retired English footballer
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 0x1a00e2aed742db6734a952de88d777dcb9d9c16823eb22aa2c3265674c642a01. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f547605-90f1-449c-9973-a7b401421617.json and https://artists.proofprofile.net/proofs/artist/8f547605-90f1-449c-9973-a7b401421617.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
St. John Passion, BWV 245 / Part Two: Recit: "And When the Soldiers Had Plaited"
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 0x487caaa58f2215e4b6f6271cf9cdeaf5c5bdbe4a21d3abf7677a494123c5da3e. 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/GBF076042321.
Un Ballo in Maschera: Act I: Di' tu se fedele il flutto m'aspetta (Barcarola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d291a86082327c66ad312ce9c8e013af2e4ff37416b1b131dc5a6ff70ef299f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USBC17200108.
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
St. John Passion, BWV 245 / Part Two: Recit: "Then Led They Jesus From Ciaphas"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6c3248c0b783190954a5689c0b55f6fdf561f97c3c6099fd781895d0e656f5. 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/GBF076042316.
St. John Passion, BWV 245 / Part Two: Recit: "And Pilate Said Unto Him"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37deddebf9cdbb2fe335b4757bdcc286b5e7baf12989e51f403f5a5a6b9a938f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBF076042318.
St. John Passion, BWV 245 / Part Two: Recit: "And There Crucified They Him"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127966f1b19b21921fce98aa97698847ffd3165932f9673e2f49815f8839faad. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBF076042325.