Jérôme Dumas (), better known as Junior Caldera, is a French disc jockey from Paris. A multi-instrumentalist, Caldera was influenced by many musical styles and made rock music before becoming involved
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 0xc55208efa46661b4d44233f77e3ce003793b4c9b56792bcd3e43d02ee9ac389c. 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/39a03661-2d0a-4db6-9302-93b55098bf2f.json and https://artists.proofprofile.net/proofs/artist/39a03661-2d0a-4db6-9302-93b55098bf2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Can't Fight This Feeling (Radio Remixes)
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 0xe877ef44ef52cc334542c11598db18f9988b1fb56738a61e2bd39dc0e52f28d7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRT170800047.
Can't Fight This Feeling (The Club Mixes)
Can't Fight This Feeling (feat. Sophie Ellis Bextor) [The Club Mixes]
Can't Fight This Feeling (feat. Sophie Ellis-Bextor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0b50bf43b3346d84537a027315f12704630d6867b508bd9e22074523e57064. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/FRPG71400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb495beb23aa9947a0725f8cc431707e8cb73abad3ed6ba5a899e3a525d4cd54c. 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/FRPG71400480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1880cb50dc7a7269d57f2b22cc2db6e51dea6dc8bd689d290275a9bbbc3cf400. 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/FRPG71400530.
Call On Me - House Remix By Junior Caldera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e933a2498b7bf68245e42927d54ced5c2c4b5df8d37ea9fb8a748a5e525946f. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USVI20600725.