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 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 0x0f89b0c7170633b0e952b59369358a16a83327becdd4307fd4a381614575b7d8. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35c951b9-4e49-4d2b-8435-df9881c03653.json and https://artists.proofprofile.net/proofs/artist/35c951b9-4e49-4d2b-8435-df9881c03653.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cañon de Cotahuasi – El Abismo donde Vive el Silencio
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 0xf67ab900189730314ffaa55cfb3435edc351699821f821891cf4a2189e0b2234. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZZ7K2544550.
Valle de los Volcanes – El Camino de Fuego Dormido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6808c8ebe3b5f6fd1e26e540148399fc44dd6086ee8e56756f27f65aa9e713a4. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZZ7L2586224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dc26856b9f5c79fa5fb578ebb57408b6625d915f9bb09282e5ba62e5fc97e8. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZZ7L2594471.
Playa Pimentel – El Puerto de las Tablas de Totora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1899e707984c2623fb1d8c0da3fe3717b5c68592dd9ea4116440221937894ba9. 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/QZZ7L2586215.
Nevado Pastoruri – El Espejo de Hielo de los Andes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a9020fd8cfb6f9426a581581bd654b6651b3dd88ff16bb06c06ff7e61b4281. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZZ7L2591588.
Bosque de Pomac – El Reino de los Algorrobos Eternos
Volcan Ubinas – El Respiro de Fuego del Sur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4838dba1cff864e51fbb0597f663474b1f7e5cbe252b88235e3f52f79ef31ba. 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/QZZ7M2586174.
Bosque de Shollet – El Refugio Escondido de Rodriguez de Mendoza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015506781c146722cd82eac9b21eba6170a9ebd8d3e7613585d47cd69b814943. 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/QZZ7N2546190.
Cañon del Sonche – El Mirador Infinito de Chachapoyas
Nevado Veronica – La Guardiana del Valle Sagrado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe319cb94e1460cf3d74ada2dce1298125aa099274aec940746062ae6d7a7a1ed. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZZ7M2586177.
Nevado Ampay – El Guardian Blanco de Abancay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c40b0b135da3596ab7af3afa6c83142782f2af0043e1b852f752c55e1081bef. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ7N2546189.
Laguna de Llanganuco – El Espejo Turquesa de los Nevados
Laguna Rajucolta – El Cristal Secreto del Huascaran
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b573c6b7a8b01aff0557b52de8f620d49508d1af402fa6960a12fc4ea4c2bd. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZZ7N2546191.
Cordillera Huayhuash – El Corazon de Hielo y Libertad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace46f0497e9005d58d7ef147b854fe93b5416d08526778491a29192124fea1c. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZZ7M2583866.