Zona Roja (English: Red Zone) is a 1976 Mexican film directed by Emilio Fernández and starring Fanny Cano. Plot In a whorehouse in Acapulco, lives Leonor (Fanny Cano), a young and beautiful woman wh
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 0xca2f02f13e7c8343259bf1d383a18c568f592ebb4733db878b195d6fe7350cd7. 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/42808c3a-1190-41fb-b5b1-ed3cc1819e5e.json and https://artists.proofprofile.net/proofs/artist/42808c3a-1190-41fb-b5b1-ed3cc1819e5e.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 0x1cd3024fd5ebc83286404b6afa7eea2a180ed89176c3be44421f5f03ce4d73a8. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZVEM2376647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113415ad7bef9cd60eebcb082672519a68fc25fc81c84d88acef89ebc391bec4. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZVEM2376648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d0a2d7c6c4dd9aa0d963b5f9c92bb8759fc1cdcdc9ef27cc8b48a0b0d490ec. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZVEM2376649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d39ae09a78c4c94a0026e08ba1464884afc964163c6083e06a866356b96673f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USZZR0811007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30bc03a7afb15058c2bd9dcb5d4770be59e6d65b148aa26c9347553db752456. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USZZR0811011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9590d1f5d917e4a8f4e994ebe97aa5078b6ab51a646a4a05dc31aea2ba598687. 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/USZZR0811017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3229b642619ace4db5d6e0156ad08ea18359d60d62cb3c8fc4423fca035343. 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/USZZR0810211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c288648dbbe0d3e3ca50c98bd59eea53f56a74e993cf163476fa1300519ef8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USZZR0810214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1a51680b2cbb26be7f748eb4c89e2b0bef3db9a389b7470e81ce6501651325. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:46:49Z), 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/USZZR0810239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185bc8ab792db5788db0edf8a720cce78720dbc9a2911df8ca35a2a1b7c56940. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USZZR0810244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a7d77191a7f53bb5dd28b00c03d9d1cc68eeedea2386383685107722647c4b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US3Z41200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4109b2f232159b7be48df6d483cd85f4117c6dc9a8a36c093319864b5c2978. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/US3Z41200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa640a4827f103a73d7ea0a9bf83c1c896e4c3a98e9a07bdcc941318268ef2336. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:47:19Z), 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/US3Z41200049.
Frente a Frente (Zona Roja vs. Caña Brava)