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 0xf25d4f6c6950ca982b6453d6cd0c42238bbbae3d44779aa39401f86ca0c548cd. 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/cc548b4d-2fce-40d4-bcf0-a0323687268b.json and https://artists.proofprofile.net/proofs/artist/cc548b4d-2fce-40d4-bcf0-a0323687268b.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 0x6f69eb9ba3edf61a29136e20c78f3d119fa95af83ce416844b8562aa0c4f8f3a. 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/ITQ002000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b92e5b93d158c42c3cf07fba7f111c9b5d7477bdb10aa2187067ced11d53be. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ITQ002000585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1779d66782a61d01c911008d2587c4d35b891092243dcf76aa27583b4865a702. 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/QZRP42297327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6fcbb507c83374c49643f2308802507a14ada927aca447644fcf10c677cca9. 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/US38Y2407351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84955d7239a14652aa4c1a64dfdbb63e775f14532cf48f24b863735be56d72cb. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/US38Y2417204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc476ba3f8575d479ec08fd9726887f3cc0780f1f51b1d0e7bceabff9e10334a. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/US38Y2548294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ab1eb091ac2cd4169824368cf193d2400907f373f6ebc7dca2aa85945f6568. 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/US38Y2548298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517029ddacbd9604fda50e18d991b34e77577c6066300ecd680e9d3419cc9775. 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/US38Y2535003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48446eee67a09c54a2065a0f8346e55fcf2c02383a505e58f61f353e743e8764. 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/US38Y2548300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0a6725d02a4650d9fc139f9d7ddf1c311169e1569426e3c585c7ad075a9f01. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/US38Y2548301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc476ba3f8575d479ec08fd9726887f3cc0780f1f51b1d0e7bceabff9e10334a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US38Y2548294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79405654af77430da83efd75965f447e6e7108011e6ef720d43ab8f3e2e33dcd. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/US38Y2548296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ab1eb091ac2cd4169824368cf193d2400907f373f6ebc7dca2aa85945f6568. 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/US38Y2548298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517029ddacbd9604fda50e18d991b34e77577c6066300ecd680e9d3419cc9775. 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/US38Y2535003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48446eee67a09c54a2065a0f8346e55fcf2c02383a505e58f61f353e743e8764. 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/US38Y2548300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0a6725d02a4650d9fc139f9d7ddf1c311169e1569426e3c585c7ad075a9f01. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/US38Y2548301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74c6b0f7180d6097d50618e6a6c08442db483eb3cdf201ef63ff92140b0ae81. 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/US38Y2548302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dd5232007b76c64aaa9cda99a142913f07be1f0a81bc653cfd0ad302d76088. 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/USA2P2237235.
POPCORN (feat. Freshmula & 18k) – Prod. 88FRNK & Odemosci
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6785f15570323e0af6155373ea791d544361ed761c6383686a65a5ee3229b9dd. 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/ITB002401514.
FULL IMMERSION (feat. FreshMula & Il Ghost)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1e8a45a83a995abcd38bef4928577350c21105ba6cefb1a6508151f7172398. 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/ITL7B2300021.