Metalucifer is a Japanese heavy metal band formed by Gezolucifer (of Sabbat) in 1995. Adopting the musical style of early NWOBHM and building upon it, they achieved underground celebrity, especially i
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 0xe64398e5e935eb363722ba43f1fb92ef57ea8567cf2799bb3b947aeb42917c4f. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ccc195d-e04c-420c-b020-c667d3b506f6.json and https://artists.proofprofile.net/proofs/artist/8ccc195d-e04c-420c-b020-c667d3b506f6.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 0x7caa8fcbdd93e7ceb8c23d991e0a52b4c0b25b6ddd227ec5f10f253d6eae24a7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM4TW1837082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac1054926566e4d5d9d46e753d7f280f2be78969846bb7cbe9e0893b59e06e7. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QM4TW1837083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8100ef64462075a2374d6aa3a7d07aa950fb3711ca8cd2d4ca0e975eb313a00e. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/QM4TW1837084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68c4fc8747ecbfa33d43ad9a5349e25ac20b40255ddf5742418429ae9eb34b9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM4TX1814296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd213976cb49a756a67339651fc7e60d6fa0b9436dbcfa90f24f8afe0cbae6847. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QM4TX1814297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8b090803487b18ee2902dd093b872ab2f6e64f90aeecf78c140513380182b7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM4TX1814298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7882bbdd8418d5c08742862d6d0de3d7d98cf192f78a010ebb4d8dd28937bbf4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QM4TX1814299.