Fight Fair was an American pop punk band from San Diego, California, that was also based out of San Francisco, California. The band was active from 2008-2011. They were signed to Triple Crown Records.
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 0xded65e25d19981a5caa5c8211e8d31ac6ca6beb92dec66e79d1f7819b7be3071. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1028593b-58b7-4eb7-bbcf-cc208e21e049.json and https://artists.proofprofile.net/proofs/artist/1028593b-58b7-4eb7-bbcf-cc208e21e049.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 0x0965ddc8d6583b99bba0ae9445d9edfef9774a4422340035b0b9cd0ca43f04b0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US72W1010431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4581f578dfb62069d56b278a4916a5819c4fb8eeebed2b9e49a1efca843a8291. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US72W1010432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa4d52f45c840e85a7a05307a2257b413a1c8634c06c3eecaf5a2b49545ca9a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US72W1010438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066d291e2ba44ae001b3ea616b7117c26d6da802eb488861f96855e76f0ad239. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US72W1010433.
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 0x157f5629692caad2f83ce9d1c250f2fbd1178b23ea8c920ac3d82a20120590b4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/US72W1010434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b9f0c81ab77638e78c44a518af00c2c1131b97f8fe18a71ba9af76b9829250. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/US72W1010436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf06cc8337dfd00b7b406fbe138a10320db25655dec814941872006904eb87ed. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/US72W1010437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca4f577fb80ef40a75aea18c15bffc31c6fc804a6e92ed6a6b393c1738e244c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:18:36Z), 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/US72W0810343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8184b7233b051bf8309cc75e9de18cabf87547461c9f11129eb18c5428ebace1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US72W0810344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5255abcb7973c493de086836c400faf17cc22c9748ba9a939a5aa258b4887ace. 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/US72W0810346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d2861cb6bd849692173a679a6d49d2edb1d8f0d275b7123a97023052f21918. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US72W0810349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba3b0fc91b6d8094a4ab3500a3435ed636bffc38007ba774f97a45f6cb5c00f. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/US72W0810345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727c637d6d1af71611810a06e35c5ad77556e29505b71d4dc8956ccdd69fd9ce. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US72W0810348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5239d380443f887c2ffe46218398ffa3f3b8d850df60090b31958c9cb43f70. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US72W0810350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e5f603e7320486bc918f5f9c65de8c8665d31c6e9d004b8a868459e553fccd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHNB2432698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82262188c00de7e927e92c669c2019f44400c9ac10c41b42ac5dc0a12787fd0c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZHNB2432701.