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 0xc6e08b6b3aa87bef50c190dc6e32d66fe889feff5c55af53416bff34d7a1ebe1. 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/bbee81c0-e897-4c24-8b92-0f662b110838.json and https://artists.proofprofile.net/proofs/artist/bbee81c0-e897-4c24-8b92-0f662b110838.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 0x351dacd4a5d15d4763a3e0717067186d8ea66e9c23441720be202f3774021ebc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FITFR1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc20a9953fcefad40c55301503fd5688590f22221bd6f69238d13b9f3a38f0f7. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/FITFR1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0d9367f76d101480117dac93b4849d59e9ddbae5742fe3e9bcdced9786434a. 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/FITFR1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5264c43f6ffc39720f276c1efa9e40a0b8d4dd1fe55b5eda556ccab17f05a3b3. 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/FITFR1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0121ab73305de7ce6d72af96cdb6c7b024cc326078e54d0f2a62bd1834ac0705. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/FITFR1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f095b9153aa7a02fd29573b4891dd7f1d36a216af4adbfcfffc9f9dd6b3b30. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FITFR2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dccb35345d651ecb8097cb8af399de096d3764d4f086b24110f2a6b97e40f7. 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/FITFR2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd537cbad61e4f364d8b7d61b947b0049f71aa99e64c1c1e6932550cfcc0d704. 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/FITFR2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6456ad3caaebffddd83c7b67bae444372b8340c54d64acd1396a4d587b3c7484. 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/FITFR2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667c7d03adfada10f940f05b7c7710e7baa17bf4f1250eebcae9b623bd92f43f. 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/FITFR2000017.
Säännöt rakkaudelle - Best of MusaCorner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d1692dab7a65c14dbed733628f12b676181a0770f1888aebba02b4d7cc1106. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/FITFR2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42cabdabd3103b75e132ed546048488645dbf895447fa614c22db7f64da02fb. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/FITFR2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada6b51d390f3b75018cbf653d8cb2b1f098e0529845b25482c7ffcf79272128. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FITFR2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38df005146b434aa4fdbdb42f12c0cb2e10b032867db05422ceeb4c5ab3dec45. 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/FITFR2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0436178dfbf3a06428d81c1d935256b0124ffee1dc3928448149aa7d76b69a. 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/FITFR2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff57a2ced08f846ce9c5c2d792aedc3cc2c5cb0785ac608f4410b30b6110a87a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FITFR2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd3504c6ee9589c4ea0921557c45bb5a0c0365e32f28316f26e884864a79cc0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FITFR2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9743587bb26f7162940900a08dfe026f3c9aeee589ff1b2e775801a89b63557c. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/FITFR2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00d81c4a888c2a5c3ce275902731b7884749d5ee35d9edd3662a4c40ebb7f25. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIEFE0700472.
Jani Matti Juhani laulaa Elvistä suomeksi, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc814a32c0704a9289b68cce3888218628fe9b78047858ba7662e9ea767afd0f8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FIJNW2400003.