Thy Slaughter is a British musical duo formed in 2014 that consists of producers A. G. Cook and Finn Keane (formerly Easyfun) under Cook's label PC Music. In 2014, the duo released only one original s
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 0x9ee13a313ebfd1b2c68837adfc7bf59336ec2aac10174a41243487d5290aeb25. 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/b17478ba-ebd5-436a-9fff-65afdcf9d4c0.json and https://artists.proofprofile.net/proofs/artist/b17478ba-ebd5-436a-9fff-65afdcf9d4c0.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 0x719fc4c01a5fdd93beff8dc03be074d1533a047763a59851d71d64144ac5ec76. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2354259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b7b9a0829ec551f591cc6b608236e8372f6e65843aca9d9c2567d7834c0176. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2348782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496bb437d080e1810358bf9969f796a0a8395742111daae172183292bdf26b56. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2348781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853d326026bd01ad07d82df45c0f6062b843e6e57e2830d8784649d954dfa028. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2214188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b7b9a0829ec551f591cc6b608236e8372f6e65843aca9d9c2567d7834c0176. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA2P2348782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772efb16cec529fd105a5c0a2cea41063c7c63e0bb0211d81d8d47d4d43927dd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2354254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ad25093e68046364bbd8bfadacabe0a2434fd66c060293a2fa04006577de05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2354256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f0e25f7e5dc18c00ad2fd42ed4f6f799aa559ecef2b36aa701b09c2f4b992e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P2354257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496bb437d080e1810358bf9969f796a0a8395742111daae172183292bdf26b56. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA2P2348781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d69d20bc772326d2512254fbf2f92cbe70266cf4b835988f307face20efb18c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P2354258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719fc4c01a5fdd93beff8dc03be074d1533a047763a59851d71d64144ac5ec76. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA2P2354259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1c277fd9d6ed6b8248e81b8beb9e33ba869fd4cbc2cb623fa1f586a071dbb7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P2354260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383a5ca6d43919ba64d1cbbdbd8d64c0267c0e02db7c8859d3d67b6e307b1cf7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P2354261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f00f7f213f93b7c1c02224260023ffd1ef65e121b50b75e8a954be3630f322. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P2354262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff62a289d306ecc3a4b7d46dad886ee25b2201c9b4953012a5016f89b9527e17. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P2354263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c8cdf78b6f0dd4204372cd0ff4c139e7547977406fa002297423198b29b6ae. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UK9951511107.