Frente de Liberación de Enanos de Croché
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 0x89640e98998423b97f294094e86c8d62c7c69121dc274160b6836dc76a47b2f0. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ac3a026-dae8-48d9-a23f-0b77b2ff52a9.json and https://artists.proofprofile.net/proofs/artist/6ac3a026-dae8-48d9-a23f-0b77b2ff52a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Costumbres argentinas (Lo-Fi instrumental)
Bruno y las Aventuras del Frente de Liberación de Enanos de Crochet
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 0xbec78498acbae92bdd9e387237b0ed78e9dc7a95ba0f380faf6bc584c9ab3ac1. 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/QZHZ42141546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b7cd0ea84ae6b7d18f35d314bcb2a4c68199bebece2028bfbd430cba258640. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHZ42141548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335c3cc3ba1d471b1989084c3d595b4847812d4a2df99b4f00c12c5a6c5027ed. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZNJW2120112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02147ad54d2c819e9ce16028a3545345616bec7030587d4e5a4205ef4bc0780. 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/QZHZ42125454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1f6148178ffd038142fafda8f4a8b156577b4196ded35e367def14ddf2b1ec. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/US7VG2229352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02df5c8ccb642b105ea1322d423efe7ae13e60a2cabbe90d6be4f63d5f5bd2e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZNJV2188262.
Empleo Honesto, Capítulo 1: Versiones House de Rock Nacional Argentino
Empleo Honesto, Capítulo 2: Versiones Punchi de Rock Nacional Argentino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe413066e663f6b6de0f4ba9f9a36cac497172bcf742f4183bd56bd28c6e3a2d3. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GX3HH2383803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea6b21e87883a9e2651c21b2c754c3f4f28283bb6286a347c639a2d32c7fcaa. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GX3HH2596608.