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 0x2fa945c920f47174e7756595b04ed9083f0e8e526d2911e686dd4e02dfc85c01. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6dd637e1-9e22-4fac-b778-ebee4116fc64.json and https://artists.proofprofile.net/proofs/artist/6dd637e1-9e22-4fac-b778-ebee4116fc64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Corte del Faraón: "Preludio"- "Bebe, Bebe, Mi Señor"-"Son las Mujeres de Babilonia"
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 0xf0ddd1e8ca10331b1669ae96e7d858c4dfaac534b2da1c0573e4da3b1895ce0b. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ES5831303241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16df1a9386da780cef326caae9a49ef7fe0637ecf33813b14a4cf08012e05257. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ES5831303235.
La Corte del Faraón: "La Luz de la Luna"-"Tres Viudas de Tebas..."
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39a125f807ac0876e38b6df4d084cd9f279cc3a57937d85b0e924a972066b48. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/ES5831303239.
La Corte del Faraón: "Mis Brazos Te Reciben, Valiente Putifar"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd4228f6fb5c4fa12805e2b0664733ccb915f0b7ea9c9800e791271b179c0d3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5831303237.
La Corte del Faraón: "Para Juzgar y Sentenciar Quiero Saber lo Que Pasó"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7b0ee6b36c2423a5c82391ac158ea20c2da1def89e07d6d33d9318c455d7fe. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ES5831303242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb153fa2dcf7587202d372280940de33d80d413710b47af4adc0fd5fae105f8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES5831303243.
La Corte del Faraón: "Victoria, Victoria para el Triunfador"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5219964bd9a670784a3fa52643d1e75cf97f0fe16d5b9ce841d193b17df1db8b. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5831303236.
La Corte del Faraón: "Ví, Entre Sueños, Tres Mujeres"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20328f2f672d8f8ebb45d8833a57ec052c81742dec419506a4b6696ecb052717. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5831303244.
La Corte del Faraón: "Ya la Ceremonia Terminada Está"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc937020d658f58474d4a795389603329851e7ab101456b44b2f2e427f2885c44. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5831303238.
La Corte del Faraón: "Yo Soy el Casto José"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbdb3cf29d7af944e399f56fc425a6ec0da12c8d2d24c8f1024074c27c0ea72. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/ES5831303240.
La Corte del Faraón: "¡Gloria, Gloria a Nuestro Gran Virrey!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa855aab3e4165db85f744cf00c59fb1e12f106ea5b9b5a5b5732c1cd1b495fe. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5831303245.
Preludios e Intermedios de Zarzuela Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb153fa2dcf7587202d372280940de33d80d413710b47af4adc0fd5fae105f8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5831303243.
La Corte del Faraón: "Canción Babilónica"
Antologia de la Zarzuela - Duos y Romanzas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edd164f1f53998ad3c830a2fb558287365daa93edf226b3c366d27ce91f52eb. 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/ES5831303893.