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 0x51a4791cd077e442644d9244d8ba4075d8c1310025b80368376bce54fc632dd1. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75e41e98-47cc-40f0-9be2-f99bb9305804.json and https://artists.proofprofile.net/proofs/artist/75e41e98-47cc-40f0-9be2-f99bb9305804.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Portuguese (National Anthem of Portugal)
Ngaikomborerwe Nyika yeZimbabwe (National Anthem of Zimbabwe)
Pátria Amada (National Anthem of Mozambique)
National Anthem of the Principality of Andorra
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 0xe138d42f4044584fba4aed76c99d97b1c0733816c8126685c11b726d537e4e94. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:29:13Z), 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/GX5MY2340087.
National Anthem of Central African Republic
National Anthem of the Republic of the Congo
Aegukka (National Anthem of North Korea)
Aegukga (National Anthem of South Korea)
Dievs, svētī Latviju! (National Anthem of Latvia)
an-Našīd al-Waṭanī al-Lubnānī Koullouna lilouaṭaan
Caminemos pisando las sendas de nuestra inmensa felicidad
Libya, Libya, Libya (National Anthem of Libya)
Tautiška Giesmė (National Anthem of Lithuania)
Ons Heemecht (National Anthem of Luxembourg)
National Anthem of Maldives (Qaumii Salaam)
Tavisupleba (National Anthem of Georgia)
Deutschlandlied (National Anthem of Germany)
God Bless Our Homeland Ghana (National Anthem of Ghana)
Arrane Ashoonagh Vannin (National Anthem of the Isle of Man)
Motherland (National Anthem of Mauritius)
Esta É a Nossa Pátria Bem Amada (National Anthem of Guinea-Bissau)
Dear Land of Guyana, of Rivers and Plains (National Anthem of Guyana)
La Dessalinienne (National Anthem of Haiti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad873dae66f5e33f553d8101442f3ace39a42141753e863207dbb05d31ec2561. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/GX89G2485811.
Jana Gana Mana (National Anthem of India)
Indonesia Raya (National Anthem of Indonesia)
Hymne Monégasque (National Anthem of Monaco)
āl-Našhid āl-Waṭaniu āl-Maġhribi (National Anthem of Morocco)
Gosudarstvennyy Gimn Rossiyskoy Federatsii
God Save the King (National Anthem of The United Kingdom)
Lupang Hinirang (National Anthem of Philippines)
Stand and Sing of Zambia, Proud and Free (National Anthem of Zambia)
İstiklal Marşı (National Anthem of Turkey)
Qaumi Taranah (National Anthem of Pakistan)
Humat ad-Diyar (National Anthem of Syria)
Poland Is Not Yet Lost (National Anthem of Poland)
Arise, O Compatriots (National Anthem of Nigeria)
Himno Istmeño (National Anthem of Panama)
Sayaun Thunga Phulka (National Anthem of Nepal)
Tiến Quân Ca (National Anthem of Vietnam)
Kaba Ma Kyei (National Anthem of Myanmar)
Sri Lanka Matha (National Anthem of Sri Lanka)
God Defend New Zealand (National Anthem of New Zealand)
Wilhelmus (National Anthem of the Netherlands)
Gloria al Bravo Pueblo (National Anthem of Venezuela)
Thou old, Thou free (National Anthem of Sweden)
Deșteaptă-te, române! (National Anthem of Romania)
Ja, vi elsker dette landet (National Anthem of Norway)
Tuvalu mo te Atua (National Anthem of Tuvalu)
Humat al-Hima (National Anthem of Tunisia)
United Republic (National Anthem of Yemen)
Oh Uganda, Land of Beauty (National Anthem of Uganda)
Himno Nacional Paraguayo Tetã Paraguái Momorãhéi (National Anthem of Paraguay)
Mungu ibariki Afrika (National Anthem of Tanzania)
Ishy Bilady (National Anthem of United Arab Emirates)
Namibia, Land of the Brave (National Anthem of Namibia)
Yumi, Yumi, Yumi (National Anthem of Vanuatu)
Soomaaliyeey Toosoo (National Anthem of Somalia)
Inno Nazionale della Repubblica di San Marino (National Anthem of the Republic of San Marino)
Swiss Psalm (National Anthem of Switzerland)
Orientales, la Patria o la Tumba (National Anthem of Uruguay)
Le Lion Rouge (National Anthem of Senegal)
The Salute of the Sultan (National Anthem of Oman)
Sons and Daughters of Saint Lucia (National Anthem of Saint Lucia)
Rwanda Nziza (National Anthem of Rwanda)
O Arise, All You Sons (National Anthem of Papua New Guinea)
National Anthem of the Kingdom of Yugoslavia
Terre de nos aïeux (National Anthem of Togo)
Forged from the Love of Liberty (National Anthem of Trinidad and Tobago)
O Land of Beauty! (National Anthem of the Federation of Saint Christopher and Nevis)
Ko e fasi ʻo e tuʻi ʻo e ʻOtu Tonga (National Anthem of Tonga)
Pontifical Anthem (National Anthem of the Vatican City)
Zdravljica (National Anthem of Slovenia)
Saint Vincent, Land so Beautiful (National Anthem of Saint Vincent and the Grenadines)
Independência Total (National Anthem of São Tomé and Príncipe)
Koste Seselwa (National Anthem of Seychelles)