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 0xc015cbe687f941cf15466e394220c0d8cba12862d9da6f188ad0a6359da18b34. 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/e8ded0c7-59b8-4299-8248-29328202bce5.json and https://artists.proofprofile.net/proofs/artist/e8ded0c7-59b8-4299-8248-29328202bce5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sensi Skank (feat. Ruben Da Silva & Skinnyman)
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 0x9f14f59517bdabebbf36ccd94fcc2f5aa13ebe746cd68f41774d6e9b32a69246. 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/GB5TW1100046.
Sensi Skank (feat. Ruben Da Silva) - Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4203cad4c35b9dd01a336f10d8fb51af425833b198aba46e99ad004267e64eab. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GB5TW1100047.
Sensi Dub (feat. Ruben Da Silva) - Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadcb2693fe8b9df417914239c886a043eba21cdb5864984722d35f2bfa3a4e9. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/GB5TW1100048.
Sensi Skank (feat. Ruben Da Silva) - D&B Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8620550634accee178453fdc4e9a046115257e6945a595d7bb2fbcd0b2c06620. 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/GB5TW1100049.
Sensi Skank (feat. Ruben Da Silva & Skinnyman) - D&B Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd610f8108dc2b7b2857b0cc75c404030cb36e7b4619e7666177e04d1200f9656. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB5TW1100050.
Sensi Skank (feat. Ruben Da Silva) - Dubstep Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7ce0541cdcdd1c51465013e7d3ea8b245349090b06aae2e53150e3def231a5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GB5TW1100051.