1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0fcc23a988457f6667c0133378a5a37f8db5cac1604627bf76bf036f7ba938bc. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a76fb1b6-d94e-4735-b623-cc5237e839b3.json and https://artists.proofprofile.net/proofs/artist/a76fb1b6-d94e-4735-b623-cc5237e839b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ambiances du Costa-Rica - Costa-Rica Soundscapes (Concerts naturels)
Station biologique de La Selva, Le Matin à l'Aube - La Selva Biological Station, Dawn
Station biologique de La Selva, L' Après-midi - La Selva Biological Station, Afternoon
Station biologique de La Selva, Le Soir à la Tombée de la Nuit - La Selva Biological Station, Nightfall
Parc National de Corcovado, Le Soir à la Tombée de la Nuit - Corcovado National Park, Nightfall
Réserve biologique de Caraca, Le Matin à l'Aube - Caraca Biologic Reserva, Dawn
Parc National de Tortuguero, Le Matin à l'Aube - Tortuguero National Park, Dawn
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 → block OTSBitcoinBlock must exist at that height 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 0xaa2ccf95241793ea5346a10e116312ca0245e4d7583e9303adfa3bf75ff676b8. 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/FRX190731681.
Parc National de Palo Verde Au Milieu du Jour - Palo Verde National Park, The Middle of the Day
Parc National de Palo Verde, En Fin d'Après-midi - Palo Verde National Park, The end of The Afternoon
Psaroculius Montezuma - Montezuma Oropendola
Alloueta Palliata - Mantled-Howler Monkey
Thyotorus Atrogularis - Black-Throated Wren
Myrmeciza Exul - Cehestnut-Backed autbird
Columa Nigrirastris - Columa Nigrirastris
Amazona Automnalis - Red Lorred and Mealy Parrots
Electron Pathyrhynchum - Broad-Billed Motmot
Ramphastos Swainsonii - Chestnut-Mandibled Toucan
Insectes et Amphibiens - Insects and Amphibians
Odontophorus Gujanensis - Marbled Wood Quail
Trigrisoma Mexicana - Bare-Throated Tiger-Heron
Campylorhyncus Jugularis - Rufous -Naped Wren
Brotogeris Jugularis - Orange-Chinned Parakeet
A Heard of Blue Wildebeets - Un troupeau de gnous à queue noire
Two Male Lions Fighting - Bataille de lions
White-Browned Robin Chat - Cossyphe d'Heuglin
A Family of Yellow Baboons - Famille de babouins jaunes
Wind and Storm On the Savannah - Vent et orage sur la savanne
Silvery-Cheeked Hornbill - Calao à joues argent
Slate-Coloured Boudou - Gonolek ardoise V2
White-Browned Robin Chat - Cossyphe d'Heuglin V2
Long-Tailed Lapwing - Vanneau à ailes blanches