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 0x82408804641bbd832bf5f72e44c7518599edfaf4a06d127a97b4befedd876f8d. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c933586f-31c2-431b-a275-4996f225d5f5.json and https://artists.proofprofile.net/proofs/artist/c933586f-31c2-431b-a275-4996f225d5f5.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 0x5514b0a150eda0112b2bfce732da5e7d9490b83dc76fb5eecbca1e7697ef6bca. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FI7S51800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129d3a5391cc626c4871a8d66b41dd0fb11f3144e18d5eb53d0ca058d995b9c6. 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/FI7S51800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22461fde61cf668cc19c1f1253369e2b1ec10007109159878ddeac79d4664d2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FI7S51800149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94dc1e9d57db0f95671a541a10c323e9f60f2df39f0b71df9700b24eaffb4f0c. 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/FI7S51800150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe800c1d1dffbcbc670b8829256a7992c9339727840f360696a7f216aa193af72. 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/FI7S51800151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d02cbfd9542dfd1a758299f3cae07b7b9d344d11f72e072aa694ec3cbc9074b. 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/FI7S51800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca04c4497284192dfdd03b601a759bdf12659602d1f26355d31755f01ad0754. 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/FI7S51800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9b715d19e3f6e142bbcfa6b3f5eff13c84959c888d3e33883e696723a8e13d. 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/FIS501700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f66d6fd82cf6da8494d8ebaacee9f5db4edaa7d291789741ddd96ed59f6ccd. 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/FIS501700056.
R.A.K.K.A.U.S. (on yks iso K.U.S.E.T.U.S.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132bd89cabd96ae20543261be43cd48c0cd15a40ea5913e401aeb619377ba4b3. 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/FIS501700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793c8c30859e778604452a46eb502abb1c3b6f333be6517bfaa81c826372f40c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FIS501700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259508850eb0ec431923dc739ec7a0d1230ccfd8babbc337df9a500d338e458e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FIS501700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c0d117eb3ef155654916c8448191695da8f48be0dce0d63aadfd8a1c9c8c10. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FIS501700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d31ba6d292d50dfabb41178bf882fefba55db1ea80cafa2998a72704ee5045e. 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/FIS501700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb4ff316ad3aa9e9c07ab9ceb95d50beab86d73b66c8077f2bf1f2e68727ae9. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FIS502000098.
Silloin Kun Sä Lähdit / Muutossa Kadonnut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e75a2ecd68a58d1b0052fb176fd703b285bb9379df2e6cc107c9775abb2b183. 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/NO28R2011010.
Tavoittamattomiin / Helpommin sanottu kuin tehty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a688ba1f87d4b2ca87f7f103bbab69d7a3b35afc650ff832f30a99f97b5fc1d. 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/FILOV1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe679d3c7020b8b83bd3d8fa33ea579029728762249126638074308608afb97. 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/FILOV1900028.