Nocturnus, currently Nocturnus AD, is a Florida death metal band formed in Tampa, Florida, in 1987 by the drummer and vocalist Mike Browning (ex–Morbid Angel). History Formation Nocturnus was formed
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 0xf14e076be4ed9d7adeb2e075e76b8b12b23d062f6d036ca6298a3f0431289d3b. 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/4020ebcf-8952-4fb7-95c7-edf066ad20f7.json and https://artists.proofprofile.net/proofs/artist/4020ebcf-8952-4fb7-95c7-edf066ad20f7.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 0x0f54e146f2485139ba9ae0d509a9b3e567a47cf33474ba0e985df2982dc271d7. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBBPB1700800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eaade7f4a8780b4854bf405f1e545492d03c9122f97ba79ed3ed00895ff92ae. 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/GBBPB1700801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fcd3ccc96295b3c5bc1096be5e7f5e7faed4dc82f92165daa92d615450fa45. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GBBPB1700802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d51bca0d87acbd4d3b83bbe15f42f6a2d7a83bbb9ef5cf18e49f6e44a96efac. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GBBPB1801135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4ffc8fa1177269970ad447deaea0e83b081556489a896f267bf4972eeb880c. 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/GBBPB1801136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcc58a638d52a867650254a558868900a81488d08f03086abdf507c1e6974ce. 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/GBBPB1801137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4640b2deda30ae79028e258df41565cfbde1bb7884dc99f4aa6afd571ba324f. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GBBPB1801138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf6ab33af61f43b195bdaa480cd7dbf1581fb5908f9fdc5a84bc99598491efa. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBBPB1801139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fae9f570e63c568ad374bb573af7f2ef62acfa5be6f5b5630bfac6dfdac5e52. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBBPB1801140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b6f4beb3e1f50c7d86f06bc854ae1c0bee23a7cdb37d93b8ba58780c713e91. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/GBBPB1801141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf009ace9305fe2de1131e304f6885e17d5099fc4adb5dd669d4b15d356c51f3e. 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/GBBPB1801142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f89e53aa3c598013142739dacf69a4c4ac9b6d8f98c63a2ce46a10a24bad707. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/GBBPB1801143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb351b846ad46225782ab8b649d336d8aebb1b759cd1df189f3988d7cec1866b6. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GBBPB1302711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33c6106510bbf28cfdb3e3f18e38bb6450675ff8f5aec2df4cf4f07c92d5ce5. 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/GBBPB1302713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a536eeab66561de68d06bcc843fe6f058128181da627fb09bc935698873e3d. 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/GBBPB1302714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a743a8ae2bf83e8cdd5476ff03b17ba9e473bc38482ccf1f87c8556f301f1e. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/GBBPB1302715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7fe6876bfb9173f98c8647813c450db63139c42c62ec2ef37566a81961416f. 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/GBBPB1302716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7cc07bca01bde0ba052b354b5db2af07348e39c089bb3ec8d8418b482b512f. 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/GBBPB0700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bba50ee35b799c2b4a34b3e562f35f7853f3591fc4afee0a265cfad0046d9ea. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/GBBPB0700321.