Maëlle Pistoia (born 4 January 2001), better known as simply Maëlle, is a French singer. She is the winner of the of the French version of the talent show The Voice. In April 2019, she released her
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 0x89f53b66b782fd9485f2da7f11e7c83535ab0dbb8af401ff42b02bfc56a70bbe. 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/44aae698-ca82-49cb-acaa-54d15b6d1ac8.json and https://artists.proofprofile.net/proofs/artist/44aae698-ca82-49cb-acaa-54d15b6d1ac8.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 0xd5f98289d10a1b1712bd1d4395fff6ca82e8c21d95b5e16be403964818c04e37. 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/FRUM71901175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cd62a118c280e24fb59d5f8ac17d2ff7b18c7bef4a56b13aac38c3a8fd372c. 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/FRUM71901176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f89e2918ae25a1591441e240ad7d65c07192e9866548f6ed9be8cfe4a45beb. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FRUM71901180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8dc9d67d4495067992dd7d42fddce291e145e3a7d49752c246a05d56fa84b8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/FRUM72300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c318baef1475cf29fbea7a25ae9976be7687c86ea094f2bdbe9a3532f455523. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FRUM72401699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dba87aa0093d7f15b5f8f6acc87df65627fecaec7c12920af6aaeb880fff4e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FRUM72300896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cfcee88e1115cbfa15fc817ecd0fdce4b4af670b4c9322c3b40946a7f1dbdd. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FRUM72300898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3608dc75958bc9a7e5c8c3d51bc3ce472647ec2caed3e7986548b26f43e20be8. 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/FRUM72300905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfd239cf67d67ad24b410e77028698205630f5fa67a5ac8b6e88ecb285c09bc. 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/FRUM71901177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413c709b0244ea936f68f954e03f0199cf6edb7386c0cad09e9164425e626988. 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/FR79W2400410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfd239cf67d67ad24b410e77028698205630f5fa67a5ac8b6e88ecb285c09bc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRUM71901177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfd239cf67d67ad24b410e77028698205630f5fa67a5ac8b6e88ecb285c09bc. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRUM71901177.