Mastermind, Master Mind or The Mastermind may refer to: Fictional characters Mastermind (Jason Wyngarde), a supervillain in Marvel Comics, a title also held by his daughters: Martinique Jason, 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 0x648a1f9c870c04e9ae5d36a63991e156ea093b665c9a9546dcb1d2ed3d391fa7. 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/d04ce8b1-f1c6-4be9-8197-457d9bbbc735.json and https://artists.proofprofile.net/proofs/artist/d04ce8b1-f1c6-4be9-8197-457d9bbbc735.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 0x4a33645f9c3c4e341d7be4a665cf911f667fa08ac9c5c79b9e66df4e7c3ae030. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLFP2332428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a92be6fc72ff323f2e2f991d8d72a3a42aba38de16647b28bcedc41c2522761. 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/GX3Q92323268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0fc669a62223a2c68a6e4473dab685bc835b5506208fc42117fad4b43dd7aa. 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/UKXN22253768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3db3872745f041d50dcd03246daa0bfc87ea5de429b26a5b097dc3edbaaeb95. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZA56E2250237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b8a49447432cd795aa30c79de7c15686d8672d56a439969d151d050e546bba. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX53U2057521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7cf8a4791c9be2fb5919b4de99f8011fb0bfbcbec4dc73b33758b01ea090f0. 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/GX53U2041834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2f7d0c70d819264523d689a461ae846cb1bf357a9eb3b4f9f36f764ca2667b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GX53U2000520.
Mastermind x Fumez the Engineer - Plugged In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d76de479c3da82f5c60522231bc251164b9f6cfef70b16cfeba29c72f8d6e4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR59R2128837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf937ba8880491ae9ea82d38670cbd69ba8069dd40efcac29a5fc4f40ce55202. 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/GBLFP2175736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8956737c4d5e11b1a0cf24165ea00a8911ffb5351b76eb10e98c739b62eeff47. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKXN21988854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680493ec0f1fc96067b9e49c696ab7d305585d16968e37f5f78aecd0a2d74039. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBSXS2000198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ec11ae40bbe6afc696f518a7bb22ac218ce339d0de430a1a0191d1a9cd682d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBARL2000846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a5668b16a0c35e1f8e44908f290a42fa460ab12f5cef72f630d19429fb7233. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBARL2000628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6142a3f2bd341411cb4463fc1fce9125ae6a2f2df55638333659a41f0b5918e0. 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/GBARL2000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40584cebacb3a81b5eb578be05d98acb0f5ae9762cdfd6732ca23691acb02ea9. 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/GBARL1901037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b54562604fe6e2d31f7a7ea29c0f179d21f2396171dbc03605bef42d97ecb3. 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/GBMA21957011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5df98a704a33b63425eee0866a67dcf794ca5720feb2f22540c69ac9d78e7a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P1931278.
Summer Fresh (Hoax Remix) / The Morning After
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1a3b922ec0bec00466a6cbe5f13df9b8df448670f2c3ab02f3f162d69546cb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAGN9600063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefda3d751eaee5b9623a5a64057f5c950eb4495541b82dd90476198e96d0f0f2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAGN9600064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7490a1838689b522edfbeb6b1a2a10d86fb43596e1541c0793103fd003916a7a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKADG2100809.