Uneven Structure was a progressive metal band based in Metz, France. They play a style of post-metal which is heavily influenced by the Swedish extreme metal band Meshuggah. The band blends polyrhythm
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 0xfb4c61d28935f1af218c7cdf2be743a921c4888b9b5075f000353cea7027f281. 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/13796478-a54e-44a2-a7af-4174c6372016.json and https://artists.proofprofile.net/proofs/artist/13796478-a54e-44a2-a7af-4174c6372016.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 0x7cea1041186a74e01403a3520d328328011bb68bfde5bcb169fe9fa4b5c1d5b7. 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/GBTBS1100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a223ada879cb9b956019975bb66ecc2780fdebad873b281fe71842b523a474. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBTBS1100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf98cbf52a0b2538a70b3a4d59d951ea41047d18f015632f5c6a7061df9b153. 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/GBTBS1100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e5b90962733a774de84988ecf7fe6455da0bf110e3f4b2b53775e16105b218. 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/GBTBS1100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83df463b057c37033a6568707d35b970c7d2b7115bff1773287602314f3fe4a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBTBS1100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c466f5079e057934ec80c94b30ee259d4cc8ca284284d169052f123cfe05c94. 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/GBTBS1100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe399add0201d3fbe7bb928a7409fd0f3cc1808d4742e9814fc45483567fa830f. 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/GBTBS1100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c56c3ebe04f79b938f9819c551f203964496cdeb8cca7f93b896619d06663ca. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/UK2D51300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281f5f890cb6d5f8eee0a0c96aa45c353bf4adf978314e4b2fd93c7a1e5ecf40. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/UK2D51300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ffd4e50f11bc7369b4f2f2b14a72f76f7f3d2f181de07db85c8be7d3c628e5. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/UK2D51300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ac110dd8de9d17d9c5f7425c98239c26a2a1386403ec8a6c1e4b45e98f7320. 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/UK2D51300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3725a762a2990eba2a268689790c64761128c40c251422eeea2e1f2f05d553. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/UK2D51300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf844dbf9b8f2f5f3d92ceccf203a0fef0bfd6da6b49e46520ea3182938bd6b42. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/UK2D51300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54b85117f588d1191798ae46508eb93cb5db85fded205089cd24f31e7161db9. 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/UK2D51300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491b5bc73cd6961de19973682c10978721d08db0db62b49af58ab1b27ce4683c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/DEA451903100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb89dfb6798ee6075b35455ed29aefca0a3b22e799b66f3f35c7d9890efe7fcf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEA451903120.