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 0x0bdf8b9b55f5ab1dea35e0aff2e83e772afdea68462f065dc946984f7110e31b. 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/f537f60a-e1d4-4a8e-a8f9-93adf949ad44.json and https://artists.proofprofile.net/proofs/artist/f537f60a-e1d4-4a8e-a8f9-93adf949ad44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gotas de Relajación Lluvia y Sonidos Blancos para Dormir
Ruido blanco, corrientes de paz y el alegre despertar de las aves
Armonías naturales, la fusión de sonidos blancos con ríos y aves
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 0x4e52a0c547525142562966a42673259cb3d39fd8665c48f6770b9283cc7efc3b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US3DF2432831.
Aves y ríos, melodías que se entrelazan en el sonido blanco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207f1c95e199f7d89e9f2b3668021b6b89f38dc805b91d0a71bba778589f49d2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:11Z), 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/US3DF2432832.
Aves, ríos y la pureza del sonido blanco, un trío sinfónico natural
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6beb60b52198af149819f85d489ec1554a96ff16aa9c1a414ae1838c01a0219. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US3DF2432835.
Belleza auditiva, capturando el sonido blanco, el discurrir del río y la alegría de las aves
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40cf61c9e7edff2c4135e6ec9b6ba8fe20efb3aefcabe33125f83b5ec6ba193. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US3DF2432836.
Cantos matutinos, pajaritos que despiertan el bosque con su música
Cantos de Aves, Eco del Río en el Bosque Profundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe4af074cbe94879abbd20343481420ec4e774570f9a311040133a0ccbde785. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:29:18Z), 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/DEXN82589538.