Char may refer to: People Char Fontane, American actress Char Margolis, American spiritualist René Char (1907–1988), French poet The Char family of Colombia: Fuad Char, Colombian senator Alejandro Ch
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 0xb488d28924f38242dd318387ef676155d4c8fcd0f7380c6e61b4e209f238fe33. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/383e256f-6e13-4de9-9c71-860418f63fa6.json and https://artists.proofprofile.net/proofs/artist/383e256f-6e13-4de9-9c71-860418f63fa6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nous contre eux, vol. 1 (Le soulèvement)
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 0x0fefba4f054d62567da98a3f881073487e3382ed9e42f63a7f68044c88d25f16. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/FR6031501190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e14f012632e73816fc7133e900778c200feafc4d6c7ec0416d86e5ef26b7c0a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR6031501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9198fd6ca52d7322551a5ba05280ea1e63e4f8e3ee73ebf2d3e6654e77f445. 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/FR9W12137410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52a1a27eb29a14ead32c9ccb034c6e475b2318834f2fac5096c097929622d68. 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/FRX851801284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61f31ce44d53bb16ac4a3e934fab421d527cc2c2b5bb19cc8199acf92b33a80. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRX851801285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61567187e21c89cfe8957292f23646a18db4e5732a8aae16433ff82e83f8450d. 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/FRX851801286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff38f81f0854f56530fc0ae449d8d8b7edf716bbc4dd473c28434299ec0d8710. 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/FRX851801287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3bacf10fabf33c0dac0e3cfcd7ad8c2d474c8e8e31c6c33df992eb9713b719. 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/FRX851801288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7602c8a663c1c8f27951082f88ead0c83ac9ebed45004034ba8c7eace5317322. 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/FRX851801289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a0c340251e0476ef9f8ae6fb4a11829b64954d01991bf543dfe10f0758d41b. 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/FRX851801290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a24faf061ace19241774bbd8ccff89702a4ae0888f5c9bd4c7a42be27336f8b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRX851801291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218b12a7de90aae538384a8e55138cc93eeb593b49e625cded48f2782748316e. 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/FRX851801292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fee2fa6f032ee10d3ff43076cd689eca6ac1d1a779226a1b2b489a79a70cd40. 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/FRX851801293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4061960662a751dd8ae87801f82a3a0f35130ff0ac5a7bd0148d69afb58d628. 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/FRX851801294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dd278bc87f9daf94da9c9c34f88c0c6ac4c2ccc771da2d6840ea4aa4a106b4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRX851801295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf078c0c8befc11438e6166434bd75b507293f98da817402fec01e7075f5d80e8. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/FRX851801296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99634faf880dce8574141e029c47c2b51c62eccf769a3733e8cc960839535fe. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FRX851801297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f990ace0cb9ebd5f8a93724d36eaddc71ba25c2c5feb31e19918267a9ae3cc6. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FRX851801298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3d7b3ab46b66d7a1d10009eeef7fab7c31a0f866ff8c68ee1af0d349d0e4cd. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FRX851801301.