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 0xa662cddbe72d76f527bc4e0ddc0f90afa8323fb7b3809fd3213f813623a63cb9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0057f3cb-2ce1-4095-ae8a-558671276050.json and https://artists.proofprofile.net/proofs/artist/0057f3cb-2ce1-4095-ae8a-558671276050.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fiesta Pa' Amanecer (El Revoliático / El Pávido Navido / La Roncona)
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 0x8341761295a7a9d00d0214e6b8a04862079fefd616f4546fe384e661a6fd042e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/COC019924063.
Fiesta Inolvidable (El Negro José / El Emigrante Latino / Amargo Y Dulce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128f99be70ae5593582415a2d3b67dfa0b57523672bd9d4cf9fa1a739fcee558. 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/COC019924064.
Fiesta Del Siglo (Corazón Querendón / Entre Rejas / El Baile Del Muñeco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5f96fe65fd77d49d7b6cc4a372f6b122b48ad5002123e4ae281c258700896a. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/COC019924065.
Fiesta De Siempre (Plegaria Vallenata / El Medallón / La Cantaleta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fa65609f45cd95376202e29ea3c922a72b56d27660f4fba86a6b07b4d3967b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/COC019924069.
Fiesta Fantástica (La Suavecita / Disimula / Por Tenerte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04785fd3918454a7e2cb8d0b641dd1760ddcbf22782a8ea0e88b3ac6c983af10. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/COC019924070.
Fiesta Latina (Te Lo Juro Yo / La Interesada / Tu Cárcel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4dd28daa1351f8f4675717aaef9c128e7cc9d74231da714a6bdab82207f16a. 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/COC019924071.
Fiesta de Navidad (Triste Navidad / El Hijo Ausente / Cantares de Navidad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e4978961ffd0fc2497f77173222fc9b4513fd13d0e049c53ef2de70d33bba0. 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/COC019924072.
Fiesta De Fantasia: Agüita E' Coco, Muchacha Triste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567947b9584fe85990ae91e45b4a1232169d3577f486bb851cab109ad7e1c8ff. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/COC010024686.
Fiesta Caribeña: Carmenza, Cubita La Bella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba3f4add8cf287813a48b7b0e34105fe05cb07a48972fba16a7af73e24f3779. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC010024687.
Fiesta Gitana: Baion De Madrid, Baion Chili
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5164a1b2deaedb744d7a320431d40844c676c45ff9793fefa1ecc77c60138a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC010024690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953a7110a41a092121637d71d72f206db07930e8f7527be92a2502ae0ec40ea8. 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/COC010125077.
Fiesta Del Sentimiento (Pagarás / Tonto Amor / Te Castigo Haciendo Llorar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78270e0a88dfec55f37063699e9c5c63fcaa7c9ab06c8264e8d766a33eb1ba0a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC010225433.
Fiesta Picante (Alicia La Flaca / La Brujita / Ají Picante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b637df3e852ff74e2eadf06164be7fbafeeab8d3c3c9ae4635610ee4a237e3. 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/COC010225434.
Fiesta Estudiantil (La Colegiala / Ojitos Hechiceros / Boquita De Caramelo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c53b91164bc31ef7298a713d11691b7d5d685f1523c4a6f540eadb3792d447. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC010225439.
Fiesta De Despedida (Es Tarde Ya / Adiós Al Amor / Idilio Trunco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc32f1626affc125b2d120e127a461070a14fbbcfa4cf19e40fa17f12951246. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC010325759.
Fiesta Costeña (No Quiero Envejecer / Lo Más Lindo De La Vida Es La Mujer / Tormentos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5fc4015caf142f8befe688a0b1943b8bdf9cc5b43129980ead59c02806cefa. 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/COC010325763.
Fiesta Sureña (La Guaneña / El Trompo Sarandengue / Son Sureño)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c37a8e7356434a040f59469d6cd0bfa4892d01da0e58e1caf8e10a43c521800. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/COC010325765.
Fiesta De Rodadita (El Sanguanero / El Barcino / San Pedro En El Espinal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8861a892c1f922c1783658e6ce3d6613dc46d1c9773583bc5effc92cdd08faa2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/COC010325766.
Fiesta Del Perdón (Pobre Soy / Perdóname / Corazón Dispuesto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b75184f24a0d9a671b183ac3467a2b73003ca36c6ba8391b07af956dd519526. 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/COC010425956.
De Fiesta Con Jorge Grajales (En Aquellos Años, Quiero Ser Feliz, Ingrata)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd422c08656a5b592b67bb5ee21b2fe7de73a109a6154e7f924ba053c7e5adaf0. 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/COC012338718.