thumb|Smoke from a fire|alt= Smoke is an aerosol (a suspension of particulates in gases) emitted when a material undergoes combustion or pyrolysis, together with the quantity of air that is entrained
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 0x73a02b198685ca78daeb8f83a58e1f436adddfefdcb731c0ca4b2ebc41c64dfd. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d552440-a88b-4fec-b317-2b29233a1c3a.json and https://artists.proofprofile.net/proofs/artist/2d552440-a88b-4fec-b317-2b29233a1c3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eat / Smoke Remixes (2020 Remastered Edition)
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 0x568e2f3f66d9ef89883ba97c5741474486418f1edbeec697584b2326c38a3f89. 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/USUM70603525.
Aint No Black Superman (feat. Smoke & Numbers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bb4a749e8ba71effdee66b98d10faf66f976dafb3a30f060e39e30b277ea50. 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/TCABQ1325009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2b6e50321be6427be61aa63bf72c7166a7d43388e4c7651f1e4f37b43ae7d3. 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/BRUM71002317.
Young Survive feat. YZ,SMOKE, KUROCODAiLL, DJ PEPE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be72bb87ba3297a246cdef1bae8e5aa12e1cff1aa96246ebab35e4bd46be690. 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/JPY201002211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254e098d4c16d8280d68d9da3d7cc165b88041b64b752a29932190d7a7caaa41. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEBL60605039.