Mental Cruelty is a German deathcore band formed in 2014 in Karlsruhe, Baden-Württemberg. The band's lineup currently consists of vocalist Lukas Nicolai, guitarists Marvin Kessler and Nahuel Lozano, b
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 0x73c9d7ec16e69ec81bf1cb052f77ea367df4eddc0d23416aa095d3c56787f682. 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/96551232-4ea8-467c-ba64-4ab1e37e5686.json and https://artists.proofprofile.net/proofs/artist/96551232-4ea8-467c-ba64-4ab1e37e5686.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 0xb3a33f0e23a6b22d447ed466fefb62014f553bbe3d9106b77c4969f8f993ec18. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T01:59:37Z), 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/USY251671159.
Excruciation (feat. Dennis of Gutrectomy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7eee903f6fec8f1d95da6ea4dff1014f491a6d271ae4c06834c0506f7882870. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USY251671162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229c9be9c6b197a18e541d8506dc7ac3124251828ee29d12fcdd248cfb4dd1fe. 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/DETJ51800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3a60a8404951f6ec07b71331faaf8d532a1261c5f6394a45e0722dc83c35a6. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DETJ51800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9bcb397fe347e667b83d708ef02298681b8abb17deeed296dc1cab557b1dee. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DETJ51800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2335da50681e60ef6438e618af931905e9a4ca4a633a749acfec5b1d7ad5f462. 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/DETJ51800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9584094e714ff8a71cc56b35c7260b5bb02417ed509dd4286466a8c2ee5717e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DETJ51800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af84bef85c3cc106ad9b773dad0e9ebc8967db2bb459636875f85539f62a9a6. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QM4TW1989957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1db9804d643e18db772b3f7c1e2b902f04f32455623bd315d0d99a7c05fb4eb. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QM4TW1989962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdea7a6a23e329023dd477e911a28acdb521312b6e0d3a711344735f0f2ad28. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QM4TW1989935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd3459c8f386d5eeaf3eb8f668e23a821e47bba44a1231d3225bddeec8884ff. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM4TW1989937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa055d3717f1c27d4a802e0834368f8013434a07aa885f5a4dce687241551b23. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:30Z), 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/QM4TW1989959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb00932a51ab36bca1b5c55968c4c995ecdd1c73e17739d5dd993dcfee6f21e4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM4TW1989936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883031b34067401d65441e470788056701e660aeef4990414472a278327a9d7b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:12Z), 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/QM4TW1989960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9246e29b71486aaf4b19934f05b3d0a23ad7283be02cca45530e64f3aa32b862. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMFME2078326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0813db83c316ab9e7ea11cba2fa888ffd941c738ca0ee7f7bc822cc79779d39. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QMFME2078328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e682b35f2193fbcbb87d24fa41eb9c3127599d876c3f8f1cc5ab2fa659cc33. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFME2078325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa586c222dcac523212f9b47aa33f9fc6f2e2895554545276f70d4d99cda64471. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QMFME2078331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e534463021a07fe140aa507adec1c4975425fc3a91aaa54422a44eca89939a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFME2078333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2930945f448547a8830ca2fdebdf67d5f1c2e52811608664260d8a5bf754d4ae. 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/GBDHC2338707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd871ee9e7646b02586710d1b2146f38297f6ada4e4731727f88c2ec6fe621f41. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBDHC2338705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da7c51dc809ceac45743453f6de0f1786459d6f40324bae4968548f33abfb17. 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/GBDHC2338706.
Symphony of a Dying Star (feat. Misstiq) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb5e85d4b5dd14a57dd7d525a07cee328fa67363f8b58cadf39dd8c04fcf669. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:25:27Z), 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/GBDHC2338721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd325802ab9233df46f3f802f8e4f3d695a1ad0924450ffe6416fc50652c03421. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GBDHC2338708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa720106f19b3efb8e5bed149f026b93c88bc1970d9c3f461e1b964d2155df2c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/GBDHC2338701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafb27cc76680f8fe2345fb080ab3b5dcb5617c969c02d303d6f97dcbc2269f7. 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/GBDHC2338720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567a433a91d1f97ca08cf68f72d741e82cdaa2e97d6479a16615ac925330cae4. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/GBDHC2338711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb5e85d4b5dd14a57dd7d525a07cee328fa67363f8b58cadf39dd8c04fcf669. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBDHC2338721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5f0c976251b7a0caa74d3465a1100867056ebcd8015e4f331992264bbdbb8b. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/GBDHC2338702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c9c68b41efc4333709ecd877cd1b5bde71178ce0a579bbbdb32db202677cac. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBDHC2338703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4324eca073ca8798c6c37e5de6105176ae04e42039985b476a4f105aa5bc7686. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:36Z), 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/GBDHC2338704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da7c51dc809ceac45743453f6de0f1786459d6f40324bae4968548f33abfb17. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBDHC2338706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2930945f448547a8830ca2fdebdf67d5f1c2e52811608664260d8a5bf754d4ae. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:31Z), 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/GBDHC2338707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd325802ab9233df46f3f802f8e4f3d695a1ad0924450ffe6416fc50652c03421. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBDHC2338708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1ea0d5436233bd35da40965cf546edd166c91372e84caceeab392604ee19ce. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBDHC2338709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b669ca20367212a9cac4e6763a5a9972bcfedbe0fd28fa41f5eff020a7d87c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBDHC2338710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4269778b233bf45625a5bf72537bc35da1d82850e893cc7157bf522839088c. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/GBF862658201.
Beyond Deviation 400 - 400 Vocalist World Record Track
Beyond Deviation 400 (400 Vocalist World Record Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b1ff765a318890284fe074834236fccf32af3d0127cc73e630637926bb060a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CAE562123701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1570607273f43e659f9b1017abc2ae1ed744fa244e825451cdb083c6593eb9ce. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBDHC2334913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99b620d13f676f9b83666af9e0c8a68fca2485cba9b838ab6420352483ca8ec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USDY41980380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffeb0e4de0de67231675fa0088cdb97dcb38897fe4ebb516c79e771330b72d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USHM91875011.