Madmans Esprit is a Korean black metal and avant garde metal band, highly inspired from visual kei. The band formed in 2010 in Seoul. Kyuho, the lead singer, defines his musical style as "Depressive S
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 0x2cc8aca7bad6a87ed7bfba54c181efa66d366956fa259ae08f11b8a1508d27e2. 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/d0581f20-d7a1-4b7f-9e00-bfc01c4f7635.json and https://artists.proofprofile.net/proofs/artist/d0581f20-d7a1-4b7f-9e00-bfc01c4f7635.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 0x389c47a5a38f9bda792ca5573825b5e821978f516b4fa7f2cbc4ab3ab7a2d544. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USA2P2130918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91ffea8b9c33ea18975ec6aa780b30d346bb4359ff8b872d675e50b94838f82. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USA2P2131795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9fc10839e201702186458a94ddde4ab40cd7784b2665c35b1cf97188213af0. 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/USA2P2131796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c4984c02074775ca4de3d87f15427b77edcff5fba682673351d153dadba1d9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KSA002301038.
a day in black (live at Hybrydy 2024.10.06)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e095adf6096307a12655e28600f5304b11c19ef4e92f33f9e2d2b65b998bbbe. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/KSA002520120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6e16e3a37662f6c80ccb55ad2652f6cabed9f2b0a851877029d14d486e32aa. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KSA002520121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb308bc76bb1ec6b0d4a57324383fe399bee18489b63397e45ca829e8ec7682cc. 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/KSA002520122.
In der Nacht (live at Hybrydy 2024.10.06)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b49bbabc215ce69fc05b31a73daa6a1ba9753c56fd99a81a7085dbe9338a814. 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/KSA002520123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9aab8f62d9288a6a63da2a0a2fbf25070cd327122fb2d7d71f71214ab32d931. 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/KSA002520124.
Idon'tknowwhoIambutthesexgoeson (live at Hybrydy 2024.10.06)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb5d4238f64340f8469940cae8887beffd2618f3cb8b70e5f966059093e3a7e. 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/KSA002520125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26415221e7e32ce5830df0b7a5e2566cdef819ef63bc41984fed677d9d463f5. 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/KSA002520126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2808bafb0ee62336d89b2fb4eddf3c264f3812884fe49c1cfa1620f97473b449. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/KSA002520127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a465ba7c3912d03bd3e0fa9ee12c49a545f3c28df80aad6f99ed7f077c1abf. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/KSA002520128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572490a5516008da7cbfdc60be24b83960793e3cd9c6b31528bed2c4d5b08b4e. 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/KSA002520129.
나의 작고 어두운 낙원 (live at Hybrydy 2024.10.06)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e8ce333f64d8ec2e55717b5c6e055ff4f2625cf1a0e655cccc51c48f8c93a5. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/KSA002520130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa0935b54ef0a246cbfab7130d85750801ad0e1bf6b25e6aca37ad25cf140c5. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/KSA002520131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd814689b4426a13274f8218d47dc5c243268990d4226f7118a2b9d4f25d0c278. 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/KSA002520132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca423e9f05e12394986e436b05792856504e9dbe3866f2193a431ba0a4d4014b. 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/KSA002520133.
Suicidol (Re) (live at Hybrydy 2024.10.06)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f598b7a3b2feeec39ceab7461dcea70c09af26b7286dda00780396f1172eb9. 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/KSA002520134.
Hass und Ignoranz (live at Hybrydy 2024.10.06)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899e606fab7fe9bda7cad49b5c90aa7a6c306a7838d7a8dbee2003179c6df827. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KSA002520135.