Josi is a surname. Notable people with the surname include: Christiaan Josi (1768–1828), Dutch engraver and art dealer Erwin Josi (born 1955), Swiss alpine skier Roman Josi (born 1990), Swiss ice hoc
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 0x95b2da9a70697fbd76b71137b74cc3260a011a1543402cd53357efe739eb1f5e. 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/002e7671-2aca-4732-8d9e-2421b3825acf.json and https://artists.proofprofile.net/proofs/artist/002e7671-2aca-4732-8d9e-2421b3825acf.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 0xaacbee2a527bdc4de29bb94dc52f0529ee5987c6afb0fbf96dd88b72cf511f39. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEQ022102574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71602d9f9054eb1e9bf084730cb4609ea7acfc1196933bdf58dc19e18dc5536a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:37:20Z), 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/DEQ022112287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bd90944884d7e2776964f50dce24343d3501962c8600e9aa9ac1dcc87c190f. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/DEQ022280227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc956ac0d89d0c3cc2294ca2b6d745f5d356db32c5bbb5567555bdbb01ba708. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEQ022390951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e789f61ff22801be246fea4e787221746acba87698fb95a9955aa517ed72c3. 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/DGA0Q2492640.
Kanaken Remix (feat. DaVincci, Gucci Qzi, Arrior, FFRAGEZEICHEN, Neysii, Ça Va?, Riccardo, ZINED, LIZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845b895a92aa2a50346f9600495e9d5f4114748d669fc39865599aaca9f3b6d3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEVY22100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4f4756721bc8a630458161730778a48ff94a826547a692797fde4b6f1f6a06. 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/DECE72303119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4f4756721bc8a630458161730778a48ff94a826547a692797fde4b6f1f6a06. 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/DECE72303119.