Barbara Piévic (born 10 April 1993), known professionally as Barbara Pravi, is a French singer, songwriter, and actress. She represented France in the Eurovision Song Contest 2021 with the song "", se
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448b747d5b1334077ad917d22aa382dfb4bb0bbf0c206cf676933f1020c192bd. 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/cb5f409a-a34f-4542-86b8-e25227ddfcc2.json and https://artists.proofprofile.net/proofs/artist/cb5f409a-a34f-4542-86b8-e25227ddfcc2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf188ed0d00ad7edc6b73a05a3f90587e44597138634fd33b19416568f5d9224c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/FRUV71800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd018ada011b661f5e5eea995c5a6773c2d607b19743e66315d63b7a5216f3c20. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRY601908718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cdc4d4376d27282e7451b77c237d04a7dbe3d5319c3699ca23a8d511c36fef. 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/FRUV72100350.
Voilà, le jour se lève sur l'homme et l'oiseau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05afb069f00d484901b8223fa6a224178bab6bd0863e1be9df949f1bbd83557b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:47:57Z), 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/FRUM72202811.
Voilà - Eurovision 2021 - France / Karaoke Version
Eurovision Song Contest Rotterdam 2021 (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f402a673e135f1a57b47da44861ce4e360b84ebde941c2baf7944a003e6f4b. 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/FRUM72100368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6095ae8a1a714f83369ae37d531473b3a19a83150ea45baf0ec7ad6a8a3927a0. 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/FRUM72001645.
Les Forces Contraires: La Mort et La Lumière
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe070645345b509f74563905d960092265c0c46be581a365c340a1f0af57ab187. Chain 2 (Bitcoin): anchored in block 957029 (2026-07-07T11:17:55Z), 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/FR9W12012327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe070645345b509f74563905d960092265c0c46be581a365c340a1f0af57ab187. 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/FR9W12012327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6095ae8a1a714f83369ae37d531473b3a19a83150ea45baf0ec7ad6a8a3927a0. 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/FRUM72001645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6095ae8a1a714f83369ae37d531473b3a19a83150ea45baf0ec7ad6a8a3927a0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRUM72001645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6095ae8a1a714f83369ae37d531473b3a19a83150ea45baf0ec7ad6a8a3927a0. 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/FRUM72001645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6095ae8a1a714f83369ae37d531473b3a19a83150ea45baf0ec7ad6a8a3927a0. 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/FRUM72001645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c534b6b071613a90a78d4b4019f5f8457b238042993eb7d6fd95717fa269e9. 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/FRUM71800543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bd6254d16ab0241a1ba0c0c2137348c02f11207f41aa25b118479fffbeb5d7. 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/NL94X2300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd018ada011b661f5e5eea995c5a6773c2d607b19743e66315d63b7a5216f3c20. 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/FRY601908718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bd6254d16ab0241a1ba0c0c2137348c02f11207f41aa25b118479fffbeb5d7. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/NL94X2300098.
Homme (feat. Barbara Pravi, Camille, Clou, Emily Loizeau, La Chica, Laura Cahen, Nach, Poppy Fusée & L (Raphaële Lannadère))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f62f006f5c86e6e8d0a17dd1593ecaf785586e896888e97e03a57a6532bfded. 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/FR9W12434787.