Frédéric Fromet (born in Loir-et-Cher, France) is a French chansonnier. He is particularly known for his participation in the radio show Par Jupiter ! (formerly titled If You Listen, I'll Cancel Ever
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 0x9f2fc61f995eab283bc6485187808435230adca6f54cd0f137f6269147372918. 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/b4c9465a-eb46-40f4-95e9-cc45d51967e9.json and https://artists.proofprofile.net/proofs/artist/b4c9465a-eb46-40f4-95e9-cc45d51967e9.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 0x5ae28684eadc02b3591e4111c738f3f2ea27e7e755c05201c909ef89951562a8. 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/FRP401500500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5df6471f27c0a0837df1d5b5de17c971cfad5d92582b68425c81f6edb62f76. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRP401500510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c96846aac232fc2a3f0ae5f9b57c96036144a2171adfb436b9dd42aaea2015. 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/FRP401500520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a171b48e3c794e4ecdb16299ba87259983b32e60a193a87c6695cfea44fc165. 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/FRP401500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56a00a66bf4801a48d4c7b56e75eafb5a80dfd438f16cbe70a78ecb234a2eff. 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/FRP401500540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfa8218d2280db83b0ad4ae7c73b0a2e1dfb0c665714c5df458dbf872688a19. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRP401500550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4bfb7dbfb27eb40c72a6293a31e3ec0b5a90a3cc395d6ceaf0ed979abcac5d. 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/FRP401500560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97b7fee76bd4721f636cf2592e2bb393e5291759df60e38bfba665fba8be71a. 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/FRP401500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6237b1f51af059532d9bffd1bf95e548e1cdc68b4b523b65a8933bc39f1890. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRP401500580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356222abac807dfde1b4077282d7ab13831d1f5ae5f6c4b4577248be6319ada0. 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/FRP401500590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e147c850ca5fd411f1f33cef37652a324b6edb629bcfde5f40d127d81dce9ed. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRP401500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e45f24afb70449247e0254d1906201f26cb72c42b2ac1a2239810f9495a85c7. 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/FRP401500610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be9118cd5506ed07f7514cf86f53a20e7565930f4d489e71c41989acd53dfa1. 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/FRP401500620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19558d6c2a4fe3e31e66fee8e3a848cc51eaadd83c567cb33dd40a0b4c2cc999. 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/FRP401500630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5b6fe75d6d63617019c6fd18f6bf54d5bf47aed319ba7bb0af86e62e1cf7d0. 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/FRP401500640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7c45d4cc10b960b04f35795c9e929dff3f6d37c5134ecdb943d7b82b6b2352. 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/FRP401500650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3035861bbb3fa768f4209e79276c8901d8371b0a7ab612b5900de8c39ef5b08. 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/FRP401500360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fbe537a8eebe680228cfc2d9844b3703d5b7ef43862cda31f382d2aa634d2e. 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/FR4EL0800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0420ea4024ec7c0a55f4b8f4f6c3e89815ed065cf88269368b76720eb26a95. 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/FR4EL0800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e9c96c32323c684fe2f6bffa229d43795e0ea8482f78c4b8424fbf73498398. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/FR4EL0800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb694fab94819687f83f47858471a754420c1a956f7702ec4f622dc59b4128749. 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/FR4EL0800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c545e78a848d469bf6ee6ada150f3775c8815176b73b208e3d33b0aa0a7aaf. 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/FR4EL0800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12797095892b83e7d474c85ae0480d08b6a3481c3203fb67681842055afae979. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/FR4EL0800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e58a5631158b9d773a932e149b91f012f9a33cf980bd08ff444e89a85114733. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR4EL0800070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd638610aeda5e8d978702b9283d6dc4bed8160c08b41b791a0021f83b5836472. 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/FR4EL0800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67889e860d16c1203b7ae159c96c20ec6721433d4adee4da464ef3b7d043758f. 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/FR4EL0800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b301b7989ec1801d078254f641c2d45f7871ef77aa21f08b8cd4d75570ded81. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR4EL0800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12bfc7fcac5b7b9103539c273a8a667eff85e3b4c4d8885919389a03fe47965. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR4EL0800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1e5d412c847d6198823fe5969ec0ca2c2adf497f33f4f42a329bb3fb459a0f. 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/FR4EL0800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d24393123a8953b166217e5cc3cdc173b04c608b27f725570897645275a2fec. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR4EL0800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75a9f35f5c05834b45c22cd6414a0d8f9707fa2abfb2940e3090fe8e0c192e2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR4EL0800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2331a272c46aa2cf52699b8830a15848d047d6f4e9ea0528eecbc850ab351b. 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/FR4EL0800150.