Mephisto Walz is an American gothic rock band formed in 1986 by Barry Galvin (known as Bari-Bari) and John Schuman (known as Johann) after they departed from the deathrock band Christian Death. Hist
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 0x103b6c9a01cada77414738e77abbfe1c835f41b40bf426b3788203a32642c3ab. 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/4c19c0d1-1760-46bb-aef4-f5a3cf38c988.json and https://artists.proofprofile.net/proofs/artist/4c19c0d1-1760-46bb-aef4-f5a3cf38c988.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 0xe706af3be26e4ae5daee112a45f1300a5d5a674bc5a6c58081908ef840e0ef6c. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USCGJ0721008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e2d54417a18045864ea52cde304f0b7b0892575fd795642c280336fb678faf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USCGJ0721010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbe9072b03b21081b2561cc6553223523739eb98bc668cdcf1c4766173a4bf2. 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/USCGJ0721011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191d24b4a9375e3ea8982a1cc3c4e3ba65d2c26ca2a60cc509f70aec34041472. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USCGJ0908349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf064d05c3be0755ff0aba097306d777a3fd64e99d344c5e00a18f50b6fe76a25. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USCGJ0908351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdbfe8bc5015dcded1c2869bb75f98310dc7cf7984c4f82ba0b3a591f874852. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USCGJ0908353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4bb0b1805c5471e92f258db6e7f5dd9a6bf959e8f8e6c72ab2879ef8ba94bb. 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/USCGJ0908355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb82b64aaa15be88f983ee962c8578f4882e84a1784f82dbca41ece7a82dd9cb. 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/USCGJ0908357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80bf91aaad8148f9b748116ba4168389506fd2a6f9e5d5f438230b153e642ad. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USCGJ0908358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b581eadbbdbd0e63abea0f9c34272d27c984ba4538ed06cd4fa341c33f9bbf. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USCGJ0908359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab5ee869ac4141dc5d6b1aea2cae8ff3731f40a5cd1195d53acdf280852c14. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/USX9P0723611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d586e995c312e839e76329e72166b42df664ebab4bb6cb4f207fd602a0d1274. 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/USX9P0723613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafaf10bf402c784b2241697debf2a6ab86e09220778ee82098b172ab749f42c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USX9P0723617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb19d279dbff684f9ff3c22b2719f264cc09fd8d08634576c00860048f65fe7. 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/USX9P0676247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3eedc7cd3bc64daa42362f8db58449cfe2ce42addc079df493c789951345d10. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USCGH1160072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd85876861b4991369f7adbe0922f7b5d18e01ddc3b03d8811d9f8c79a17396f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USCGJ1816039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb867a2586bf3a81ec4b559704fd43c4ca54f299a0d7dea455e2e42466a1b3039. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USDY41899398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2d0322c4e93cb16d2ad3f2411fb5f6973fc68261bb3053beea705dbab66ca0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USHM91834354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa563a54b45c000613502bd034aae0d6c057e86db7bdf10ccedae6d17506fcf26. 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/USX9P2082774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8799e3ed26187e94cc13d26d30ca1042ee88d5e1555a77c3c3d953e10a33bf5c. 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/USX9P2082779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc02652db578201a036240abfdcc92557f55532a73954ba831198cb143abbf00. 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/USL4Q2331220.