Louis Lazare Hoche (; 24 June 1768 – 19 September 1797) was a French military leader of the French Revolutionary Wars. He won a victory over Royalist forces in Brittany. His surname is one of the name
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 0x5eb23219db7e0cd17cd308eb154871f869733893af38c64564cb06803f3176c1. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d7bc764-952f-473a-9dd9-97e00f06cbd2.json and https://artists.proofprofile.net/proofs/artist/9d7bc764-952f-473a-9dd9-97e00f06cbd2.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 0x723bd8fcddc49d033472339493935484063c9e3c2e9d02cc5c2988b1135feea4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM24S2004388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71a787b246b08b17fb21debd8ee733f6028c068dd51712503e8c5f24589ff21. 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/UKFSV1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f17447e4ca1cced23371f89ef525ec91c854b3d6d64e22ab92f6c8ddfb753c5. 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/QM24S2004389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cde7fd13dba40de9899d57ceaa961a5a4fe0852fc15cbae0b12ca8c9c81804. 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/QM24S1825614.
Jazz Carnival [Global Communication Jazz Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e44375fbdcf2c0c087fa7eb4f0779e3bc7447704757000b6572d61f31a77767. 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/GBDCR0400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bee8ad221826d7d94905914ccb02eaeef42f9534e94f1d9e039ef0054853b86. 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/DEZ651351811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0e60095877ae820735a922ae3ca85ff89bcbd4944503c5034db7006f898feb. 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/GBEWY0900116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475fec02d47925d079c1d41baef32cbb13689b3511940dd0cd3d8fb223f4981c. 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/QM24S1825617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf38bf89eaca0deaf237506187eca9422665e03cbdf75d4944b60dafda8008c. 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/GBCPZ1004121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997b443f5e16972237fc7e86c4af36ddf0c6add3dd9e9be2fcd05f86a2b7196a. 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/DEZ651703962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3519b9133c7f26e61bf2a8238e9ef69edc61c1d018505c5d3730856645a4442. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEZ651703964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f224b0dbd05f5d7e3498e308ada05931b25ab1a3aebb09fffd0d8f6cbcdc620. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEZ651703965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b83eaf77d022f1a12bf7e60fb2c2769dde2729bbc1d352a2ab7068bae9cfada. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEZ651703963.
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 0xf8a553d56b1809c761a4df18436dbe6d3895880fd6bb552ac2a24b54d9ddb021. 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/DEZ651703966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0b1c8cbe25f2033899c0ab43da7f0476083e7735a601f31e12d8673775f35f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEZ651703968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007904a63d6740c119ad1fa054c1509cc1b6089448f8519c552685db896e00c0. 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/DEZ651703969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98be760b79c8e0a024a288fffa9f3ec306d905f7d42723b6b54fb29f620c8abb. 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/DEZ651703970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe287dbb876eb9eac58052d2f1669ddef288ab453b4a2da848b66df35a2228710. 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/DEZ651703974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d2b4137a1ff7ec453e305ec167228d1eab3d9a3325b59d7a6fa05aab0a4346. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEZ651703967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef120fa098bb8d69dc85b7d0638bb4398ab3e3079e7ead4bfd8eb871ff57e91c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEZ651703971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff55defa79ac4a414fcf1b28b9732e18e135f3a59d069cc393745fd103bf1f8. 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/DEZ651703972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ff4f6ca3eac541c0b9a36f19fc39272f10d00868f3cf977f4c40d54bd0e961. 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/QM24S2102561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4794b36b8213ace531f9453004ac73a3989d50cc18ef6c0a1984c7db81934f0d. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/QM24S2102560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c05a6ac91bc049e06205156528640473a7d2002cd9409a820db92fbf437c55d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU1938024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9816116602b447ef6baa8f3353222a4cbf8153590117fea60e052d0a83837d5c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBKQU1938023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5124e954c42cf853186cedbd4dfbc671629eff3d3e8fe4e91600c9ba59203a67. 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/QM6MZ1836540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f399445e8573f3f56ece5a17ffe34dc20a012f6dc55d452b270d532a8c5754. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM6MZ1836541.