Daniel Le Bras (born 15 January 1949), known by his stage name Dan Ar Braz (), is a Breton guitarist, singer, composer and the founder of L'Héritage des Celtes, a 50-piece Pan-Celt band. As a leading
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 0xd681b910a16faaca56a227383ddd2f489ff52979a4c6741101774af8a7e7c49a. 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/10b89e01-7f3c-4699-a24d-61996c68efbb.json and https://artists.proofprofile.net/proofs/artist/10b89e01-7f3c-4699-a24d-61996c68efbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rêve de siam (Bande originale du film de Olivier Bourbeillon)
Theme for the Green Lands (Suite pour cornemuses et guitares)
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 0xbe51eae1fd4928e52f532450f0cae45457b89559d3784806425e4b75430d1194. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRV629400670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c28ec91f320157a7390b8856d0fee7463411f50eb6ea6beabd17a59fdfb1a68. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FRV629400690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126c5ce9e4d26d224c3735d741ba361d314344f2b9d7ad50e445ead645140bd3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FRV629400700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509c85dee103534eced9d6d340e7b69a7106b58d9a9a19fa8f0d6cd0d5bbd345. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/FRV629400770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fafac324d9c0bdef34b127c6c58493f8c16938febe2e5b858a85882bbfbfde. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRV629400720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb050a2d21f1253b599dcc3cbc5528236004a1c0bf6202885fde5cfe5a3d4e3d. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/FRV629400730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f276a2130d7b1592fef4564dcf0fd3580de7a1d1d99da102bd015e84cd0854. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRV629400740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d196ce1ae28179431a0d2fe66418e6efc49b18a34f09d438c64689253c053c4. 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/FRV629400750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44438c84b93c9bd6df64f13c877adda7ad23d541113104e9af28469c3e9c051a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRV629400760.
Dan Ar Braz Et Les 50 Musiciens de l'Héritage des Celtes en Concert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66238a706527939755edf5813b2a0489e77bc528b02994e5779f8968766b6ef7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR36X9500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd7ce7da8441a1a336d05747bf15845ca1b089e8ed59ed48d86b256176a14a0. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/FR36X9500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a21a98fd98ac6c149e23bbde3bd075cb0743a82633697482589563a4f9fec5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FRV629700410.
Ril an suaimhnis (The Copper Hills of Beara)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87460540bb5ff94e9fd1dc378c22e019e2acf7c74a4087c7dfbc5ec5a62ada7f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRV629700430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ee2b45fcc9b59ee12dc049e284461b8124f3301c0202c5c72326c4dfb78f6c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FRV629700450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88155a7a606141dfe679b1247e6209cb98ca5c89affbbe9d9b9b680ede6afb85. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/FRV629700470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc6fe7b2d951e6bca581b805e7ca39c6232bc912ee9151a0c89d3eb8cd92d3e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRV629700630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e6bfcfbf01dcc843978c0f372f1259eb6668174706969a11b8adfb8257955e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FRV629700640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefdfa62656d448f8e186ee6673f4c0e1cce3bb3e941d4f5f85469761f2e39cf. 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/FRV629700660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930d7094df505f530c8f530684096fc3781136847735efc705a758570802d5c7. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/FR9W11930215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c309b17eab844594a6ceb1faca690eda3c7b248d6776c2e3a68b461dd2168da. 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/FRX611400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3691c310b9fc2170c506548a6e37d075d295b27c7a2c3a57a8a9731761efe94. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRX611400019.
Borders of Salt - Version symphonique 2017
Breizh eo ma bro ! La bretagne est mon pays !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd150f85cd54ec2241cdfd5fd26d9543e036b8c6910e5b5434cf88791526a1. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/FRZ051700219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4655937949e2e8399d939ad6b15911cab66bc73bbba5d63b5a3d4f794e4291b9. 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/FR48Q9800003.