Daniel Allen Campbell (born April 13, 1976) is an American professional football coach and former tight end who is the head coach for the Detroit Lions of the National Football League (NFL). He previo
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 0x3c9a5860265ccc33f08cd9137673f069cfd74574dbac2d8bd23109d292a2d2b9. 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/0ace5dbc-ae1a-4224-a974-c59fff995a36.json and https://artists.proofprofile.net/proofs/artist/0ace5dbc-ae1a-4224-a974-c59fff995a36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clear Eyes Fanzine: Season One, Episodes 1-6
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 0x8c0e962b3181e8ec00d987e19170d8d97d93e9b67cbe7f11fbf55bc716302594. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:50:07Z), 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/QZDA51930806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026bf329b5666ee1d8ab39faf5c92010bca1abd64fe555025b0cdb20fbbb13d1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:44:09Z), 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/QZNWP2101701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dbae926820e88421e9a7c6761b9a5e41e05bdb80eed94c00aed1abecbc9002. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZNWP2101702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac624a1d299f50cc83b4ead8ad19c9b74b3e42b02d13a068aaad839ec990668. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZNWP2101703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42962b7281189b48d619df3dd1fffd87c26f59ca2db6b2040b05863125971d3d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNWP2101704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19b28a3d2bcd287462d256397264a2184ac573c62096e56a9b3088573cfb505. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QZNWP2101708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db670a2c44752fe20cce745e00c64ef8b2dcc4c7d86e3d6208df066d44e9e5c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZNWP2101709.
Feel A Thing (feat. Dan Campbell) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003b90324c5d1185bbc34c7c45ee1135b4b43875cb2add1587ecd210453cd72e. 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/USAT22103138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e77c7e973c582e53ab7533cb6f859fb6c7ec3b856c76241c87d76b9c92e213. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USEP41239004.