Constantin "Tino" Rossi (29 April 1907 – 26 September 1983) was a French singer and film actor. Born in Ajaccio, Corsica, Rossi was gifted with a voice well suited for opera. He became a tenor in the
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 0x65855867388e1958c6497d25c631a5b7035f2d38de891e36b9b9a01da40f0df2. 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/3253ce6f-35a7-47a1-b212-2cbb6a750edf.json and https://artists.proofprofile.net/proofs/artist/3253ce6f-35a7-47a1-b212-2cbb6a750edf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Two of a Kind: Tino Rossi & Maurice Chevalier
Les Pêcheurs de Perles - Remastered 2022
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 0x71b4ef52f75bb96339f13fc40282ddb8d9768328526ebfc337d40eb202911601. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/ES31E2204397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a97058145c8cec0a5c55cc00c27dcd461777328e5a847bba79258205a2e84da. 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/ES31E2204407.
Les grands succès de la variété internationale
Romance de Nadir (Je crois entendre encore) - Remasterisé en 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbd25e6546322f61bd75afe853d0fc0f50184971cdc33b3f874a9b870eede95. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FRZ041801206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a583c989fb063d45eb827ff833fd1303d06d15f18bd5d80a3dea3cfbaa574. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRZ041801078.
Les roses blanches - Remasterisé en 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fee43d8b6a2be127661a1e079a15398cbce1a71ca464323043efc61b25c7189. 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/FRZ041801225.
Les grands succès de la variété française
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db7c8e41b79d1d580047d11904161dd28ddaacc7fc501ee8f048060ca625c84. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBGN39396501.
Two of a Kind: Tino Rossi & Yves Montand
Two of a Kind: Tino Rossi & Joséphine Baker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a41c5b89daba100c45f69543c1687e6ea84d3a05d294349195d551ba686339. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES58A2200856.
La marche de Sacco et Vanzetti (From "Sacco et Vanzetti")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a55be92dfe07820d8170656a1adcd091b1b56084394f2173af776528fc2e682. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FRZ041800748.
Papa, dis-le moi ! - Woody Braun Italo Corse Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3d851ebe5dbea8cde4ed4d64c33c9be13da748c96a86a173b703dabc143b51. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/FRZ042300051.