Semblant is a Brazilian melodic death metal band. Semblant is a Brazilian metal band formed in 2006 in Curitiba, Brazil, when singer Sergio Mazul and keyboardist "Guto" (J. Augusto) joined forces wit
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 0x9a2c1ee4e522ec3a4169b4b38ed539c0ac883d4d4443dcb1b1542408c672820b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4e88860-a199-4a07-b074-2156a774356a.json and https://artists.proofprofile.net/proofs/artist/d4e88860-a199-4a07-b074-2156a774356a.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 0xca5ecc4d29b932dcdbfd876f262c250973dc805c0cd5db821856412543ecf5e2. 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/BRG891000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c4c2ee1b9069d15de7860ec4bcb4293da89c934502b79e2256dd3a81f16502. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/BRG891000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aada007029d7c814ee7590e9307aaf5efae9e8911861dd4e8bd1c7cc271b34a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BRTWT1400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5b4e4fdab1ec3df5b47c7e9179ba94f7e2b57867f40334e7f0b26a9d6c6a53. 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/BRTWT1400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a0bbc2216b0409f73e1910ce433f3992915f43fbb1e91b17530b1d86c82d4f. 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/BRTWT1400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ef70db045d55d3f4c8cb8eb3dbc6350d881e58f391fddf663bd6ac33c0bed4. 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/BRTWT1400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf496e69c07884504f1c20745200b40207a76fef641fac660c22661ac26a3b5. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/BRTWT1400065.
Scarlet Heritage (Legacy of Blood, Pt. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe27b21000f1928a3ebec285303877b3169704630b9bcc1950e1864b40a0005e. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/BRTWT1400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd857463ff8e819faf9ad127de7cda7aa6c324acbe0bf6de6134f329eabb54c. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ITG272000404.
Dethrone the Gods, Control the Masters (Legacy of Blood, Pt. IV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cc45bbbbeebacb4ae12e89eac7daacfe52b43f55dff0d5c5bc688d337b2180. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITG272000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb773ca6c060f96e4f255bb1cfabc76cfe8b8b7a8d375f288c9f99492f22b8b. 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/ITG272000407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c4f2592d2ee15afe556f9ec2e15eab8c9204542d97f2b9e6683b5316ef336f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITG272000412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3176f7c73d224d6d97e30570a71ef65467ab20861b4906f4a64d849b022720. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/ITG272200556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4927a2cceaeb748e8b22247c26d1261917afd6c89b8d16370095efd3d392ee87. 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/ITG272200558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614a1592aec96c6c2d75428bc27685ac605cbef6caae16a8f7b99cf69dd21e64. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ITG272200559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161d168d1130696da0ebe645f077ece7f2c464c18ce86693069c6fda6b861e01. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITG272200560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ccc221d3bdf537a88c59abae1c95a0541ba0e9b7b07ffeab8a658a6dad4357. 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/ITG272200561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2837ab1cd8cc8124f3ed46723d0578fda9d1155ae2e3d253ba988673df09a8ce. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ITG272200565.