Never Back Down is a 2008 American martial arts sports drama film directed by Jeff Wadlow and starring Sean Faris and Cam Gigandet. It tells the story of a frustrated and conflicted teenager who arriv
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 0xb82aa20b9c3f79c5b6d7e5fa5981dc0c8572b2bc15e853207d7d7f7b9c7761e2. 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/4a0aba4c-def6-4413-8618-62d5452a9638.json and https://artists.proofprofile.net/proofs/artist/4a0aba4c-def6-4413-8618-62d5452a9638.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 0x6217bacd45e33fb121e2fe01a023f3f7cdef64a64f50aba645c2547c88ab2bbc. 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/QZNWQ2066147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd3d9c28a9e6b594f66847208bbc241ba1219f202a45314e2ace5233f430cff. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZFZ42168070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5bb25929f120275feb4c2d14f46eb127f4c26bf544a130132a0b95fce2b4db. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:30:37Z), 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/QZMEM2102761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6217bacd45e33fb121e2fe01a023f3f7cdef64a64f50aba645c2547c88ab2bbc. 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/QZNWQ2066147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0509332a073e5f5259da24e76782e87fe501113f3e7e71995796d53ffd6b6c5. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:38:04Z), 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/QZK6J2217082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e11731f411d01186862c024602662ff36349ee35c9af152f22eb25bf381b064. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T11:11:56Z), 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/QZNWW2260540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591bcc08ed5793f2d362e77c09cd9f628370e709447adeb53f1001f31e274475. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWR2252547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5804f108e2eb6caf147f0606c826a3f04247f4ba07b1d343af589996f64b6fb. 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/QZNWW2260542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56231d7c82f13e6dc9df8cd1bd8b1c48addc745e2c80af324d7efccf78dc4cf6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHN62236373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5feabf1b84492ddd0c92c1023d73dd7b10b560897740212cb4c22cbdd19edd6. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:46:54Z), 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/QZDA72311080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e58711d7ad8933afd7d5d2cd583e480ab5d69c62185bc5983d0d80498d6bcd7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEXN82364411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0878bcce56bd345b230beac5bc6fa3cbde7c5b88040136bb1f3bf796b6bbcb. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEXO12305856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8696505bb11d683cf3c86724b75ed20762a23e693c473a492cbc0ad8e9886f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DEXO42388238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64455f5cf1e5368f519065e0a9563994b0f9aaf0a86467a17457c12ba43180f. 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/DEXN82408107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ab4bc5e9a5f7cc68de63fa38791de33b75322f04f040bce189e69e2b150109. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEXN82408109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d1b94f9f9c0b7feb1e08d7958f6adbb952784f15337142400c06c27414c14a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEXO12305871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ab4bc5e9a5f7cc68de63fa38791de33b75322f04f040bce189e69e2b150109. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEXN82408109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e58711d7ad8933afd7d5d2cd583e480ab5d69c62185bc5983d0d80498d6bcd7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEXN82364411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64455f5cf1e5368f519065e0a9563994b0f9aaf0a86467a17457c12ba43180f. 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/DEXN82408107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0878bcce56bd345b230beac5bc6fa3cbde7c5b88040136bb1f3bf796b6bbcb. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:22:50Z), 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/DEXO12305856.