Big Dumb Face is an American metal musical project noted for its comedic lyrics and shifts in style, encompassing multiple genres of music, including grindcore, death metal, funk, country, disco, reg
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 0x110777989df45b9c671849dd45b8c68131f61172105b5b9d203314253a3a59d1. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcde5ead-6e62-4682-bcc2-327e936543e0.json and https://artists.proofprofile.net/proofs/artist/dcde5ead-6e62-4682-bcc2-327e936543e0.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 0xaf446c4db63fe0d223828bbebe9ed81a54cfcbb558e6abc0290a81f1b91c2f93. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USIR10110140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de96f6f000930c46e6e51c04e469a71dc78eb152ee8e4f6db351b28d4729578. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USIR10110141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0349435b39679337ed1a22ae807e27d65e21b12d68b2d6b961b12a33ebc0cd85. 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/USIR10110142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b621b3492d438a3c27d801a4a31f1768b544a44a56f2285b082d748b658dab. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USIR10110144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2980c8e797da1da8eb28eff6d644c23c89eaa515c8edd1f3165dbffc486198. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:24:25Z), 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/USIR10110145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b3df7795af2c57a489b67db9415b1d720a9a97b4406d00cd55bb94fa961836. 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/USIR10110146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53d19dcbe3859afc2412311189745f201974843d63019f5a7eb69e8f65e5286. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USIR10110147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5392b5b7462587036a40af30f425c70ba448ff778dfa77082c6ee706931eec8. 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/USIR10110148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6867f9c390bd7c2b1330cbaae7eeba3da4063687ec7b9e130b5208893274e669. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USIR10110149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f21c930d8eab5ea046bef02af48814ec4c359a34a2cbfa03ae349151b3c95bb. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T05:02:19Z), 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/USIR10110150.