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 0x4df89dd67526f197746c0d816f2f75c41f102fd72d840cf81063dd48c5109c16. 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/a27896c3-d1af-42f4-8533-4ded8537bea8.json and https://artists.proofprofile.net/proofs/artist/a27896c3-d1af-42f4-8533-4ded8537bea8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Когда ты улыбаешься (Dневник Dжессики Remix)
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 0xfb637832b69c6f4dae8b2f005b3457af384656ef9d2220b130c1254cde9feb8f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR2X41972608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3221d36257a1f0df35bfeb5497a8770086067d638b964a4cc522338ff0960a. 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/FR10S2188248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ca5cbb990e95a6b5dbd147f4a78a85f30ccf19f093594fecb5ca803efd326a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR10S2188250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad2f577a32dcca801ad116aebffae6c71ca5d26d3e25ea39b2e09d41adcd706. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:52:32Z), 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/FR10S2188262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12798e5206ca67c2df65fbb3ba96b67e2ec4256cf4afcb5bb4842fa4226b911. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FRX872220587.
когда ты улыбаешься (Dневник Dжессики Remix)
когда ты улыбаешься Dневник Dжессики - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cd9a13d868105193789ca601400b226210b0f6802a251842d69e42ec302db4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR59R2311815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715e1e4fc4dbde2d5e4498b74f58bc12fa8d086929ade5b18f78ddaf980d5793. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX452306278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33d5746346b5c54c895fd559d8d1042c0e8796c1ae4136949aaa89211b262ce. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA072372774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc52e4894dd70280c6d15ac3180339f7a010fd083ef0486c1a85ae14466a00c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SMRUS0076470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010558ef24144d4675647080275860c179f540502067e9dac81d16c1d6052846. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/SMRUS0076967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99f35bdc6d724ad94c96552b5bdbd30ece538ff40713ab3330530e6897aa223. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/FRX202446995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af0d3804f3970bdfe7905655b315da9a6a2257dcbedb6634e0086fce3fcea01. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:20:21Z), 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/FRX202446996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31c71d0b115e866227f0caba2b6bdba67d97e276e2a2a5016fe83a25f7a7250. 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/FRX762428107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32351c48b594946f514da3129ff6dcb1f048efb545299abd29a42e209990db2c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA072424601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa14cb96ae63ac60e9cb8b8d8049a1f719e41da84e89e13071886ca09cd6844e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:42:56Z), 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/RUAGT2467658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6f72f039ed21b49779afdb9864680f2fd4aa05a4393128f32a123550ffa729. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:18:05Z), 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/FRX202584949.