Sloy was a French indie rock band, formed in 1991 and disbanded in 2000. The band was formed in Béziers but relocated to Rennes, in Brittany the year of their formation because the audience in their n
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 0x2950912e356b377a3022a238eeea77576943f9a773e4da1c87289b25bc897c20. Chain 2 (Bitcoin): anchored in block 954048 (2026-06-17T05:00:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4197a72b-6456-4cda-81b3-1f0abe4bbb41.json and https://artists.proofprofile.net/proofs/artist/4197a72b-6456-4cda-81b3-1f0abe4bbb41.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 0x34cf23d20f4a67351bc5bd4bdcf35233a374e87916ed8408dde4826e75a1a5e7. 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/FXQ109500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20668c561810ed666571f0848bd9686b7a4fc64a11829fce33c51508289174b6. 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/FR9W19800242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d85fb619f34415ee6b09d6f2937b0b684ce94ec80453e94e201f3d56895c159. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR9W19800245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd92bba6f6cb816ef6c596bd7636318f3ab9a55d2f41695f32738f8b57b81bdf. 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/FR9W19800246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e071c9b8df5e1c13cae7cb787f819fe6fdb24b0fc6051966f0b7d6a85894ad7. Chain 2 (Bitcoin): anchored in block 957287 (2026-07-09T09:48:29Z), 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/FR9W19800247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf0e801df875b5d04a71cddced1ea8432210898b98a9f2d4c4b7fe86a0de138. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR9W19800241.
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 0x40a7e8d8417837efcf166f693eda456648760567548b6840b372143509f66c4e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR9W19800243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebd433e52455f0490eb4233e0929b5275c126af5cf01f85aa10d0e516491587. 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/FR9W19600363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0d435bf00ab06f422c97cff7d67035096aba2ac3ebe528e9805cd0947602fd. 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/FR9W19600364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4e0b58b81ec8b6c81bbe54aafff6a47707bcd82404a70b7258b341b25ce204. 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/FR9W19600366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af99398c84e1a5de33dbbf74f88cd8c347e92d891898db52488647c3ab03781. 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/FR9W19600367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc41fd94f94bcf64d84a346f07cd154fe5c43a81dee0e4f54158f60e89f2721. 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/FR9W19600368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3024a5cfcb631b7e1c3073c11d4db41fe2ea08d2b91da1ea555b0e88842834b8. 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/FR9W19600370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e18cbe48b6f39edae8c4c07ef98b9f96878e3c464439e7cdfdf7956405e162. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR9W19600373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd09347da07e492419a4c4cef3b0eb1fa40822a601f9dc901724fc6eb0da96f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR9W19600365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb244eb6a13c39982dd2ed798414884957d31b8cce5ec1f4563cdd3d277ee94. 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/FR9W19500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9af9e738d642377338f899f121c82fcf31a5518db848add3a1f966193f043f. 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/FR9W19500138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48d598da234bb851ff4851f18d78eb5791293b2050768fbea8cd524e8587037. 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/FR9W19500141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3314904e33c3813f7c06d48ea947632b6a8f37b035e7f32a24d0ce6a7139e98d. 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/FR9W19500143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14007cd3b5f1c96dfcc37b2bcbf2c1e97fe62ab4e0eff3a9b0acf915ad49fd6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR9W19500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647bfc0c96ac51535b9b746b68d4e61792ea6513145110f5a4f736eecef8f113. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR9W19500139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be6e09815cfcd70f58307c76205cc8f4190218da790837b5adba3f9704f0d4c. 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/FR9W19500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d78ca1f697054006a45c941fd520b2f4c15d4d513711ea1e582d033eedb55b0. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/FR9W19500142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e11ad6737c7a84c3ed9b3d0ad0c99a2a62a73fee6b0b1f98373e76e95b25102. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FR9W19500144.