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 0xd568654a0f4d799bb5b7c75b0072225680da5a4c1e1c9425a176e00d67af53c1. 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/0d65eb40-d454-4efb-893a-c4897683fc40.json and https://artists.proofprofile.net/proofs/artist/0d65eb40-d454-4efb-893a-c4897683fc40.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 0x459816087bc8b5b7ae38a4af87cdb96276ca65afdc603527c34d5cad438bb972. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEN120405455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63ad582e797487c858a1bdbb54c32a208c04add819091f9e91a05630efc7df5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEN120405544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2fbebefa3070cce7b12d29c58f1ae0bccfc648a27059fc40140c77de775d19. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEN120403309.
Shake Your Balla (1,2,3 Alarma) [AOL Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419c141984afe4f92170f8bb7005c3f316f566bd2424be85f95b280911fb27e8. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DEUM70501458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cadfce08c2b03f99c2fb6b00f0a92edfa32b74f38612650ddcc70b4f0e2d841. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEUM70601775.
Shake Your Balla (1,2,3 Alarma) - Single Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6a543b30fdc0818534668cdd311e6008c42aa5fc6515cf0e1ccb794375e5cf. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/DEN120504351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c72577b5d3a6c9da1ffe5332ff2f8250d7516ff59d825ab7ce2cbcb7124a3a2. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/DEUM70706170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472fb649b798b9e94144e95399f3fc0db7ddb9ecbf1868c394380c19cddbfb26. 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/DEUM70606338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f197a76c5e60736867be5b720ac891eb07e77f6ce0f0c89c6b995bdf8f05cb1. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEUM71201411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3557dddd71ea7ce8c3e73cf49ee116628f877f5822190512ed3e51c9fa7de66e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEEQ81400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fef968ebecece4bad807e7220cb1424441f8f77c58022e242405bab3a1fdf4. 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/GBLPF0080634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2e73644490bdd09faf33fcf257446cee467012fb997736c1cbdaa537f5ed5b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEMZ12401595.
Summer Party Hits - 20 Years Hot Banditoz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67afc3ee9dcb9fb1565f48ce72459e99ffdaebb5e6a43795ad36f24564c4c547. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/DEMZ12401674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1958363e76e70d8d5c5e4e95e0cf103f6751e7d40eba6c5d0fd101b0a5d0994d. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DECE72502701.
Summermix (Por favor, mi amor / Boquinha da garaffa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606261e81ad1030113e5a8c617e59a06b87b145e0a5b7f8f11018d6f1c9e01e1. 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/DEEQ81500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7916194d395ec875c039c2e1057ecb97c07253411f3f66887f954d6a6701982b. 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/DEEQ81400073.