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 0xf65036b88cded801645dba57725998d8da3e71b9fe52a2abecd17acea46b96f6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac9d7fc9-c7ef-4e8b-acc9-df472364b214.json and https://artists.proofprofile.net/proofs/artist/ac9d7fc9-c7ef-4e8b-acc9-df472364b214.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 0xdfa976333e4f48efea2fa13a85738aa0f320a6a6e6925baac4c0bc9507a9a9f8. 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/FIVLM9500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb830e3792fdc0d036735f15934fc35df17cf052f69d9a4f32209ebd089bcf2. 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/FIVLM9500008.
Suojelusenkeli (Maan korvessa kulkevi...)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea36fe2a2af9b9fc4756b2c57303d394e9f4886f319dfee659f2841b80a561e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIVLM9500004.
Uinu, uinu, pieni kultahapsi (Wiegenlied)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c34044a4f6921d3d573266ef7c5515990c33dd2e07436f7a49d98ddae229bf2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIVLM9500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d70926cc3423a42502bf265e7341f9482a88feb0ad5501d204b1412c7efda9d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIVLM9500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3743016b139644f6a11fc63ab0dc911c3381150a8c7509846303c91c1eadd084. 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/FIVLM9500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639f089de3462d6119c83b840bec82abbac772ea3b604e2440b4b3a6c2a39a66. 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/FIVLM9500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb830e3792fdc0d036735f15934fc35df17cf052f69d9a4f32209ebd089bcf2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIVLM9500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdf0ccba3761da32f31e3ffc83d78a19d7d7707c40728c99739443dc058fd68. 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/FIVLM9500001.
Lapseni pieni, herätä saa (Beautiful dreamer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb418fa0bdae83e9939e38d8a6ec23199608513bb2f74151bfc661e9b8cf4b7b1. 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/FIVLM9500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87080563c6a9261bd6bd89445e6c947ba1bc25f9033ee7d4edb590f8486049b6. 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/FIVLM9500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb3d7948a99ac87a539e6f9ce650eda23eb8f332682be3d3e8365bfef637ed1. 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/FIVLM9500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7835be16669717996b413cc4746b1dc27e198474142a129a2a5054dfa298c551. 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/FIVLM9500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35e22499ea1df484eef51682d7d16f026f04467df072768683d2575cba13fe1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIVLM9500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73866fcd4da31580a87fb74ced03aadb13587bb4435096c0e73a511ce324678a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIVLM9500010.
Nukkuos prinssini (Schlafe mein prinzchen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b9ee2f0f932c3ba7d459af25074b4c246f8f9fac9d8ff3d70bf6b6503c3a1f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIVLM9500011.
Laulu vauvan uneen saa (Slamber my darling)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9563d9697999796f1f0b744dfa22dcad254c1f5a84fe5276f936de99b5c5aad. 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/FIVLM9500012.
Uinu, uinu, pieni kultahapsi - Wiegenlied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c34044a4f6921d3d573266ef7c5515990c33dd2e07436f7a49d98ddae229bf2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FIVLM9500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639f089de3462d6119c83b840bec82abbac772ea3b604e2440b4b3a6c2a39a66. 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/FIVLM9500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3743016b139644f6a11fc63ab0dc911c3381150a8c7509846303c91c1eadd084. 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/FIVLM9500013.