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 0xef5c541221acb6b91a3e34a07c0ad906409215057e7eed943efec1ab2b65eb4f. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4e55c89-eed1-4c54-adab-d40a6154840a.json and https://artists.proofprofile.net/proofs/artist/e4e55c89-eed1-4c54-adab-d40a6154840a.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 0x948f74f9b3fe403e9d5aaa9358a37b669e852c9c01f137e92c48c86cc66d9d12. 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/FIMTA9700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1432e4b555c65c1229b4a59a7a524f00eb015f78ee12f0f7db25e866a01ce9e8. 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/FIMTA9800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ea6041cc8615f4934ad25fc205238dadd3a1e29a3e360f1f451f39cb1ec175. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIARA9800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082de6562ef0f2bcabdd9b1790134b1da44ce1c9670ed234df15a5dd9b732bc5. 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/FIBMB9800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe804fa7e019c9989336b49a2922bebf32e2f26c22bdb9ec890e2fc957413ef5e. 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/FIARA9800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc4924b57d0f2d82e3a2e6c5706ae1eeb02120c6f056dec9621b264ba448886. 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/FIARA0200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da0391c2bc8892bfce44fd91053258597e9402d65ec74a4542e48f9dff8fb28. 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/FIARA9900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe804fa7e019c9989336b49a2922bebf32e2f26c22bdb9ec890e2fc957413ef5e. 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/FIARA9800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09222d248858a8c789a3e445dfed215d55f15c6b9ab1f186f8c7263e68c54495. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIARA9800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b80273efa598d2be0a4368da7d54c916f53944a5691e61301333a7a37bc127. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIARA9500171.
Hyvin menee kuitenkin - Flowers on the Wall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6042dd65d3e7f56be0517d6dc52cc9012d117cd39dfdaddc588f0467b6bdda. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIARA9500015.
On turha oveen koputtaa - When Love Comes Knockin' at Your Door
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8936b73cb50ce1dad456cb70f0bd537b54a51561851649549114f104166ef06. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIARA9500170.
Mitä mä oikein tein - What Am I Gonna Do
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cff5b4046f329733b8746ee1b5779dcc6070522b31f8a5c9ddcc2ab1c81bd4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIARA9500169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea680bfd57a20b46bd20f14d768d634734cc831b0c13007916dc4e728e053a3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIARA9500172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ca5011b68dbac38c279574e2bdcc2be9003c285dcef12620d4d492cc2e69bb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIARA9500174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577295b58a618b68b4aefe4981b15620b22bdd8be5d57b327cea98ef77b605a6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FIARA9500155.