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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef81e06d8409d38ffaba36304bdc4fa12dcc81dfba0994e307f2597be5587f5. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/153b9d25-fd93-489b-8194-fae93452fe92.json and https://artists.proofprofile.net/proofs/artist/153b9d25-fd93-489b-8194-fae93452fe92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Albania - Albanie (Nature Sounds - Sons De La Nature)
ALBANIA-ALBANIE_Ambiance 1 - Nature sounds - sons de la nature
ALBANIA-ALBANIE_Ambiance 2 - Nature sounds - sons de la nature
ALBANIA-ALBANIE_Ambiance 3 - Nature sounds - sons de la nature
ALBANIA-ALBANIE_Ambiance 4 - Nature sounds - sons de la nature
Forêts et lacs des Amériques - American Forests and Lakes
Canada: marais et lacs (marshes and lakes)
Canada: forêts mixtes du Quebec (forests)
Martinique: forêts des pitons du Carbet (mountain forests)
Venezuela: bois et marais côtiers du nord (woods and marshes of the north coast)
Venezuela: forêt amazonienne (Amazonian forest)
Venezuela: Forêts de montagne (mountain forests)
Venezuela: bois et marécages amazoniens (Amazonian forests and marshes)
Venezuela: bois et marécages du centre au pied des Andes ( forest and marsh in the Andean foothills)
Le réveil des oiseaux en Bresse - Birds Awakening (12 ambiances sonores)
Jeune Hibou Moyen Duc au Vorget (Young long-eared owl at Vorget)
Coucou à l'Etang de Saint-Aubin (Cuckoo at l'étang de Saint Aubain)
Merle Noir aux Cours Basses (Blackbird at Cours Basses)
Grenouilles Vertes au Vorget (Green Frogs at Vorget)
Pouillot Veloce au Moulin de Bereyziat (Chiffchaff at the Béreyziat Watermill)
Hypolais Polyglotte au Vorget (Melodious Warbler at Vorget)
Merle Noir au Pont de Fontanay (Blackbird at Pont de Fontanay)
Grenouilles Vertes du Pont de Fontanay (Green Frogs a Pont de Fontanay)
Fauvette Babillarde au Vorget (Lesser Whitethroat at Vorget)
Rousserolle Effarvate à l'Etang de La Raymonde (Reed Warbler at l'étang de la Raymonde)
Loriot du Moulin de Bereyziat (Golden Oriole at the Béreyziat Watermill)
Rossignol Philomèle au Moulin de Bereyzat (Nightingale at the Béreyziat Watermill)
Cigales et grillons et autres insectes - Cidadas and Crickets
Borneo Tanjung Baluran, en Savane (Borneo Tanjung Baluran, Savana)
Thailande Parc National de Khao Yai, de nuit 1 (Thailand Khao Yai National Park, at night 1)
Thailande Parc National de Khao Yai, de nuit 2 (Thailand Khao Yai National Park, at night 2)
Thailande Parc National de Khao Yai, de nuit 3 (Thailand Khao Yai National Park, at night 3)
Australie Lac Barine, de Nuit, en lisière de Forêt (Australia Barine Lake, at night, at the forest edge)
Cameroun près de Douala, de nuit, en Savane 1 (Cameroon near Douala, at night, savana 1)
Cameroun près de Douala, de nuit, en Savane 2 (Cameroon near Douala, at night, savana 2)
Cameroun près de Douala, de nuit, en Savane 3 (Cameroon near Douala, at night, savana 3)
Cameroun près de Douala, de nuit, en Savane 4 (Cameroon near Douala, at night, savana 4)
Sénégal près d'Oukoute, au crépuscule, en Palmeraie (Sénégal near Oukoute, at dawn, in a palm grove)
Martinique, de nuit, en lisière de forêt (Martinique, at night, at the forest edge)
Ile de La Réunion Cirque de Cilaos, début de Nuit 1 (Reunion island, Cirque de Cilaos, nightfall 1)
Ile de La Réunion Cirque de Cilaos, début de Nuit 2 (Reunion island, Cirque de Cilaos, nightfall 2)
Ile de la Réunion Rivière St Etienne, de nuit (Réunion island St Etienne river, at night )
Ile de la Réunion, près de Pavillon, au Crépuscule (Réunion island near Pavillon, at night )
Ile de la Réunion près de Peter Both (Reunion island near Peter Both)
France, Bugey, fin avril, de nuit (France, Bugey, end of April, at night)
France, Bugey, de nuit, à la fin août (France, Bugey, at night, in mid August 1)
France, Bugey, de nuit, à la mi-août (France, Bugey, at night, in mid August 2)
France, Bugey, tard dans la nuit (France, Bugey, late at night)
Nord du Vénézuéla, de jour, en forêt équatoriale (Northern Venezuela, in the day, in equatorial forest)
Ile de la Réunion Rivière St Etienne, de nuit 2 (Réunion island St Etienne river, at night 2)
Martinique Forêt proche de Fort de France (Martinique Forest near Fort de France)
France Drôme, près de Crest, de Nuit (France Drôme, near Crest, at night)
France Bugey, sur la Montagne du Grand Colombier 1 (France Bugey, on the Grand Colombier mountain 1)
France Bugey, sur la Montagne du Grand Colombier 2 (France Bugey, on the Grand Colombier mountain 2)
Tunisie du sud Oasis de Chemsa, de Nuit, en palmeraie (Southern Tunisia, Chemsa Oasis, at night)
Ile de la Réunion, Matarum, de nuit (Reunion island, Matarum, at night)
Nord de l'Australie, Lac Barine, de nuit (Northern Australia, Barine lake, at night)
Cameroun, près de Douala, de nuit, en Savane 5 (Cameroon near Douala, at night, savana 5)
Chine, Mont Omei Setchouan, de nuit, dans l'herbe (Chine, Omei Setchouan Mount, at night, in the grass)
France Haute Provence, dans une vigne, de nuit (France Haute Provence, in a vineyard at night)
France Haute Provence, trois espèces chantent (France Haute Provence, three singing species)
Chine, Mont Omei Setchouan, de jour 1 (Chine, Omei Setchouan Mount, during the day 1)
Chine, Mont Omei Setchouan, de jour 2 (Chine, Omei Setchouan Mount, during the day 2)
Indonésie Philippines, de jour, sur un arbre (Indonésia Philippines, during the day, on a tree)
Malaisie Parc de Taman Negara, de jour, en forêt 1 (Malaisia Taman Negara Park, during the day, in the forest 1)
Malaisie Parc de Taman Negara, de jour, en forêt 2 (Malaisia Taman Negara Park, during the day, in the forest 2)
Malaisie Parc de Taman Negara, de jour, en forêt 3 (Malaisia Taman Negara Park, during the day, in the forest 3)
Thaïlande Parc de Khao Yai, de jour, en Forêt (Thaïlande Khao Yai Park, during the day, in the forest)
Iles Célèbes, de jour, en forêt 1 (Celebes Islands, during the day, in the forest 1)
Iles Célèbes, de jour, en forêt 2 (Celebes Islands, during the day, in the forest 2)
Iles Célèbes, de jour, en forêt 3 (Celebes Islands, during the day, in the forest 3)
Iles Célèbes, de jour, en forêt 4 (Celebes Islands, during the day, in the forest 4)
Ile de Bornéo, de jour, en forêt (Ile de Borneo, during the day, in the forest )
Venezuela, de jour, en Forêt 1 (Venezuela, during the day, in the forest 1)
Venezuela, de jour, en Forêt 2 (Venezuela, during the day, in the forest 2)
Venezuela, de jour, en Forêt 3 (Venezuela, during the day, in the forest 3)
Venezuela, de jour, en Forêt 4 (Venezuela, during the day, in the forest 4)
Marécages d'Irian Jaya, en fin d'après-midi 1 (Irian Jaya marshes, at the end of the day 1)
Forêts et montagnes d'Asie - Asian Forests & Mountains
Lac de Pokha / Morning On the Forested Banks of Pokhara Lake - Nepal
Lac de Pokha soir / Afternoon In the Hill Forests - Nepal
Parc National de Khao-Yai / A day In Khao Yai National Park - Thailand
Parc National de Taman-Nagara / Morning In the Rainforests of Taman Nagara National Park - Malaisie / Malaysia
Parc National de Taman-Nagara soir / Dusk in Taman Nagara, Beside a Quite River - Malaisie / Malaysia
Kalahari Scrub Robin-Agrobate du Kalahari-Cercotrichas paena (Ornithology-Ornthologie)
Kalahari Scrub Robin-Agrobate du Kalahari-Cercotrichas paena - Ornithology-Ornthologie
Ant-eating Chat-Traquet fourmilier-Myrmecocichla formicivora (Ornithology-Ornthologie)
Ant-eating Chat-Traquet fourmilier-Myrmecocichla formicivora 1 - Ornithology-Ornthologie
Ant-eating Chat-Traquet fourmilier-Myrmecocichla formicivora 2 - Ornithology-Ornthologie
Mocking Cliff Chat-Traquet à ventre roux-Thamnolaea cinnamomeiventris (Ornithology-Ornthologie)
Mocking Cliff Chat-Traquet à ventre roux-Thamnolaea cinnamomeiventris 1 - Ornithology-Ornthologie
Mocking Cliff Chat-Traquet à ventre roux-Thamnolaea cinnamomeiventris 2 - Ornithology-Ornthologie
Mocking Cliff Chat-Traquet à ventre roux-Thamnolaea cinnamomeiventris 3 - Ornithology-Ornthologie