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 0xdf220acefc76208d47a19a642d08ab485cf6f0d72b5cd0d6b9b2639bb3f70bff. 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/a6a21931-b1c0-480a-ba79-fdc888c02751.json and https://artists.proofprofile.net/proofs/artist/a6a21931-b1c0-480a-ba79-fdc888c02751.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Piñata de el Cuis del Marginal 2 (Versión Rock)
Mi Mañana (Acústico) [Digimon Tamers Ending Latino]
En Brazos de una Doncella (Versión Rock)
Ya Vienen los Reyes Magos (Versión Rock)
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 0x49acfd1192148434f886cb06369d512561380b586f65d3fbd7c922f5f9dc6882. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2177809 — a six-check JSON result.
La Marcha de los Santos Reyes (Versión Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d3e7a67096f1b7b551c0e5bc96827261949fc788de19b69480a101daa63f63. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2124499 — a six-check JSON result.
Tiempo de Ganar (Captain Tsubasa 3 Opening With Lyrics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea01d1ee03575746bc1e04e4e31157bfb4be7fced8de210d51dea1c08fea249. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2115761 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa006907162805bd9ed4ab20089a61291c91668206c34cd9a09750eb16546afb3. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2280824 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc351ceeebd4d512c816af0290d74c909e0defb162bff501de65c04578c6fe3c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2280865 — a six-check JSON result.
El Ninja de las Noches Depresivas (Ninja Gaiden 2 Act 1 With Lyrics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a182ea87081afbedaf8676c415a851605ac74b94ac373c64320b8038097ad1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2297771 — a six-check JSON result.
La Canción Tierna (Super Mario Bros 3 Underwater With Lyrics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9c59f0e54ee3bd92a1b4894da360b2c4fbba2430f5f6d43852458d52449210. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2299755 — a six-check JSON result.
He-Man and the Masters of the Universe Opening Theme (Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5653bfe94630cce17aa952b307c581c594267d845cc821853be9694ff6213c8. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42221984 — a six-check JSON result.
Tema del Show de los Muppets (Versión Rock)
D'Artacan y los Tres Mosqueperros (Versión Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb72bcdfbce734e2903f26246aa573be84cf057e815cf6639a32a28f74547915. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22201144 — a six-check JSON result.
He-Man y los Amos del Universo Intro Latino (Versión Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5050b8bd2ea56c5f2c7fabdfea27c213ed27deacad2fd1693c383ea7ae060e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22201169 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c069f0f1da696ba6605377331641bbd0fb972b2227b631d15ab730e4a7ef8c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92285892 — a six-check JSON result.
El Tamborilero (Versión Full Rock) [Remezclado y Remasterizado]
Wonderful Christmastime (Rock Version) [Remix] [Remastered 2022]
La Historia de los Reyes Magos en Versión Rock
Melchor, Gaspar y Baltazar (Versión Rock)
Takirari de los Reyes Magos (Versión Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf654a400cb86d5be90b076754425f2932b7894642254c949d7f4e0d8d4d0cb88. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2234407 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12078d1a14d39f1b7be0c3f511ddd9eb4f5da78e467451c50b16ed348a26e24. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2231794 — a six-check JSON result.
Spider-Man The Animated Series Opening Theme
Gravity Falls Main Title Theme (Rock Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717ac6e2d02eb37445e7ad07888ac26e81710418fc41525cb81f6060a6b6bafc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42373004 — a six-check JSON result.
The Simpsons Main Title Theme (Rock Version)
Mute City (From "F-Zero") [Metal Version]
Mario Brothers Rap (De "Super Mario Bros. La película") [Comercial de Plomería en Versión Rock]
Ya Vienen los Reyes Magos (Versión Sinfónica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ade558dfc4d88731a585c7d6faa1bb44e5fb76b14a392c7827283a5b71982df. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3TB2407534 — a six-check JSON result.
La Canción Sinfónica de las Tortugas Ninja
Amor Inmortal (Saint Seiya Hades Sanctuary Opening Latino) [Versión Rock Sinfónico]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52cc658ca47bce9c7d963f0d2e7a708544cc3d1df501648bd4bca367f04d969. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22576402 — a six-check JSON result.
Bajo El Mismo Cielo Azul (Saint Seiya Hades Sanctuary Ending Latino) [Versión Rock Sinfónico]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36ec5c3180d782f815bff69e558da979af2ea848acc128dec54bccaba7ceab0. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82552183 — a six-check JSON result.