Katalepsy is a Russian death metal band from Moscow. The group formed in 2003, and have released two split albums, one EP, three full-length albums, and one demo. The band's name is a variation of the
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 0x5118741163f91c10112241885c96b992a8f55d6ace394f834e43cf6314c7b83a. 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/7cbc6491-7cd4-49be-9e9a-81909ee3ac5d.json and https://artists.proofprofile.net/proofs/artist/7cbc6491-7cd4-49be-9e9a-81909ee3ac5d.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 0x15ed7b90a59d36b457d5fd2fec1fc32909f51cf44be8fe3609752a43034e381e. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/USI4R0815680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3764318891a03b6948208de980fe093675239c49a56a021b67dbebab3c0bde52. 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/USI4R0815681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2481bcda515f0872364ac3a092380cf2d7eaa4a36cc18db72ebd84d8640132. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USI4R0815687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae0279fa6981a8989746b5ef06ffeb3e6af5430c01f44f053952153858d8e0b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USI4R0815688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4562b433a67b1525f637776ef16079be57212d2e6e6952ec47e98b18c1ea969. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USERN1008325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511578f2c227d4579044d4192591dcfdfc85990ac38753743164f77ce23aaebf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USERN1008326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe621f8221a0b96690f25007998016b187acb94fab82ddfdc946ec6b1f4597dd5. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USERN1008327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ded6cfd79e1262f0a86df604b7bb6a2ca64a535d0cb4870b5bae336b96d698. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USERN1008329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa5906240a6970d72b0a43b0516c5ded0649fd345a8f31e44efccab9859cb52. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USERN1008331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa585d0eb83886ab50f6fad844cb2ab85ec78788631be82e97c3d4e0a48f272bf. 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/QMZNK1600065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998563f88c49dc9688e61bc01aface0a22baca29c841b8799b042ee6cc01c6d9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QMZNK1600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe012cb24dcf5d1f117a24bdbd8ddb359557785a0d7ec0c67e57e3333918d98a5. 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/QM6N21992775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5e5cb9f829977f0b0f7cb81b29ed4e663007a42c670aa44dd8ef724a4a8d59. 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/QM6MZ2038876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e80218e25109a2a8aa9dd424b1318a667493c8f508770dc7f62e109cd6bdee. 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/QM6MZ2038877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc43ab6782db8566b8580087edcfcbeaf80821c3b1fc2620a9e2a4f3aa5c782b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QM6MZ2038878.