The Mount Fuji Doomjazz Corporation is a side project of the members of The Kilimanjaro Darkjazz Ensemble founded in Utrecht in 2007. History The idea for this project was born when the musicians of
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 0xab98f9b9b023c0e1388cb82e41fe02fc9df4b800b0f4940bf7bf5c38b7d509ca. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5398f8ca-fc3b-423c-995a-cd94bf53e078.json and https://artists.proofprofile.net/proofs/artist/5398f8ca-fc3b-423c-995a-cd94bf53e078.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 0xac54b57c355743a23ffe89148f70cd0c00bc2a6c727c21831af4e1075c4d9669. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:38:35Z), 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/DERK91005801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03f3e8f6e748445a04d2bc7b7c44d609dbaebb174c8bc7e52c80dc35e4bfa47. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DERK91005802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bd9dc16a65c811d3664ae18b2c0c55b87937eb53bf2f19bb3629baa6c79185. 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/DERK91005803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7755ed74511d1a1cece8aa64e8cd606c1888d390ba6a55dffd9ca03d3325a0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:17:17Z), 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/DERK91005804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5347978ddb59f5b9bb2bb278f81ed895a5559f4ae1f72c6bf36948a9ee4cb1cd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DERK91005805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82828fcada6c88348ea9c5dfc4b9a3087c6e7a900e7ad59c8f892fc8c24a3d37. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DERK91005807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea0eec1c6f647ab935ed97c1d28ef3fb8ec65bf42ac5221e6ee0a13db3ecabc. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DERK91005809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dba6b43ead2e3b49d2f44e8b56f1a25d08a066802a9e4cffe3ecc5e0bc1cd7. 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/DERK91108402.