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 0xa38e1ea7fec9d2bcbdc3099d9a350e1612f3542e91e34de4dac3ac846f5cad77. 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/4f7d9df2-19eb-478d-a5b3-1fb6979f2158.json and https://artists.proofprofile.net/proofs/artist/4f7d9df2-19eb-478d-a5b3-1fb6979f2158.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 0x86356c1be6204bce9dc21b46c363083df5e9ca886cc938b6b9c24b20b345cefb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FIOVR1600112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4beef482821814cfc9c9b6b8b996c93f1e788dd2e30e5b5a201f6720eeb5fe6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:43:04Z), 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/FIOVR1600115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb38e6b0a81813b4b5ad0d92cd3e8a66d91c931e21b7e5d9e9993b180217ce7a. 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/FIOVR1600122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab193e0d24d267e9ca10c0f3743e234860367188fa68eef1c1445cb755a9a5d. 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/QM7282120582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729d67cc726160cf4d85fceaa97f9f1706f70894a939a74621702883fe9d9805. 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/QM4TX2232789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44424fd24bb46ef7aeaa15df4f4e034eaa4e9442b4be551cdcf78ff91d7542ea. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FIWMA2000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774c123501cb1627c1a8abba12ab84eae5573a0c88877e48d63011367ddaa053. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FIUM72400162.
Helppo voitto (feat. Joosu J & Soul Valpio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd78ff9383f718510d2655a7900a76d1eb337acb3e57d3038feaf8aa8bda658. 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/FIMRR1800369.
Kaikkee on (feat. Rosvo, Joosu J, Tommishock & 6mäki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d5c3cc059211472e4ab9393be1fd22c2ba404f06ddfab7cde9704ce35494a8. 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/FIMRR1800166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774c123501cb1627c1a8abba12ab84eae5573a0c88877e48d63011367ddaa053. 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/FIUM72400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44424fd24bb46ef7aeaa15df4f4e034eaa4e9442b4be551cdcf78ff91d7542ea. 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/FIWMA2000125.