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 0x32c6734edf69100c0d2f6827ef30da48ea230085bcc61b2a754ccdc6f2b65b66. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d46aca8d-fe9d-4cf2-859e-0efd50398ab3.json and https://artists.proofprofile.net/proofs/artist/d46aca8d-fe9d-4cf2-859e-0efd50398ab3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Maestros de la Relajación, Vol. 1 (Debussy, Satie, Bach, Mozart, Chaikovski y Beethoven)
Rondó No. 2 para Piano y Orquesta en La Mayor, KV 386: Allegretto
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 0x494c35f4cc767c2ad287b456c6d359fb047455d9c053218bbd3ef9f9cf29feee. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USRDG0218012.
Concerto para Piano No. 5, "El Emperador" en Mi Bemol Mayor, Op. 73: II. Adagio un Poco Mosso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4df936643d468258f0236e6cb4398bee82b7f27bcf51f59787360e1e2aefdc. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USZDG0700246.
Horizontes Soñolientos: Suaves Canciones De Cuna Para Bebés
Melodías Suaves De La Naturaleza | Meditación
50 Sonidos Relajantes De La Naturaleza Para Un Sueño Profundo Completo
Ecos Infantiles: Melodías Suaves De Bebé
Los Pequeños Sueños De La Música: Las Primeras Melodías Del Bebé
Ritmos Infantiles: Melodías Hip Hop Para Los Pequeños
Ritmos Lofi Para Bebés: Armonías Suaves Para La Alegría
Notas Juguetonas: Música Para Bebés Felices
Melodías Para Dormir Para Bebés: Armónicos Suaves Para La Noche
Lofi De Ensueño: Sonidos Relajantes Para El Sueño Del Bebé
Hora De Dormir Bebés: Melodías Suaves Nocturnas
Sonidos Alegres: Música Para Bebés Y Pequeños
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3758b1716f7821454f7bff2b7464a8b35c148dead458062941e5cf0eb21822. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd859d78dd08725ac2af309350ac767adbd65241adeadfd7fedaca249b7a67e82. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574765.
Caricias Del Viento (Caresses of the Wind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb009d7eef18a4a87260f37f82f40942ec1cd0388fe6c83b8d46b1ff3b64e29a0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1149ae3d175747ef2c85d163856320db346583394be973256afdf8ff044c2358. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23353f63e1a7ac080a0496164a20bee73c9579f7fbddddad5ebcd5ac34fcdeb3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEUE12574768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198493462c9f0839ee80f446e133d4a8de9bb403b9e8123bb08b1cb5b6ba974a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b04f55c62ea708a798eb5458942ed85344acb4f9f90efb86a55745020f15450. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384caf6ec3adb6deb8866d7b48db3a98b347e51578aa1b1580b3cf9370b8fb34. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a100a1ce3acd728a9d126510c8c245128eae713d7946da87b70ea175736cd12. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb874fe49b5cb4052df33c771b73d5ca6b669478eb5d340f3625fbe3e9f78c70. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0799b5d55048aa14fb414850d2fb1a1f95aa2fcd50af4c21607ab3f3ecf61e2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4809cdc614a8ba02d9aa62f8f546ec2d700a688d28ba96882451177763293ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574775.
Estrellitas Bailarinas (Dancing Little Stars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753644e06c2dee3c84b65e61ab388038e734bc619d6cda5b0a003530035f9ef8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381427d57027a8bf7acc48adb0c35118be828c3e450e578002b0343d010bf155. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574777.
Susurros Del Bosque (Whispers of the Forest)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7144fc9dcb7524006168592088a63a96e716a522174a6e543242c7e8957efc4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63b399de03a389f5e008ae21ef9cf7548ee67584c03850ed423c75656db183a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb1450286a3190a793a133823fe0ae7c85ea3ab33d83ddb3248c1b21aa2a592. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b38fe38d609d3fe8aeaf406719f0569ca06689e08f2f51131eebc1db9b2262. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb52eab32a9ab6214b0eedbe662d401052ce898fca8ab2bcd70403e52f2f01e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9c480b998b03a3b062e897632a0ccc365a12f8229bd8c2e052730ea56e8c22. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE12574783.
Melodías Para Recién Nacidos: Armonías Suaves Para Bebés
Armonía Del Bebé: Música Reconfortante Para La Alegría Infantil
Aventuras Sonoras para Pequeños Viajeros
Primeras Melodías Del Bebé: Música Para Aprendizaje Lúdico
Melodías Juguetones: Música Para El Día Del Bebé
La Primera Música Del Bebé: Tonos Suaves Que Arrullan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb774c21775409ab4e75d9342203eb6a6f7510ea8b029702373532c85a95bf52b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PL2C12349859.
Arrullos Binaurales: Armonía Del Sueño Del Bebé
Serenata para Dormir: Nanás de Ghibli en Piano
Campos De Lavanda: Arrullo Relajante Para Bebés
Música Para Jugar Con El Bebé: Melodías Alegres