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 0x6b16625b2bf542df57cbb9860e2b14faa6e748b4b841dbfa85ac122eea407c4c. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1920482-aa7d-4330-8568-e23b7eab8d2e.json and https://artists.proofprofile.net/proofs/artist/e1920482-aa7d-4330-8568-e23b7eab8d2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xa9790ea70d2d1c34e40714ac30f51ffbb24317cf33a63d9ddd59f178acfe8a82. 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/ES71G2145374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9af195055bb0ca5f19104121ca762e8c42d82ae9dd569d0982459d922af9b1. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/ES71G2145377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe962374a99ac4f77deb108bc5e6547ff7cf25183062c7c86c884b270edab4e25. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2145380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaa4ded8cbc232e901387c1a28f1ce9adc52c40c40d5f330c97ff4fc18e80d4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2145381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46705dfec206c3fb681b3e35651aa24d4653f89377eeb77efffc5fb6974bee62. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2145384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc45aa86b1c8f2985c1881c49c80e5521ccd114989be3fd44d72b19f56158db. 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/ES71G2145386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68be736c9a8526431b707028da0c55220d6e3d827186a6ee8f5065ffb0f46019. 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/ES71G2145387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df620d69bcf6264bd04db6e28ebadacb6fe5f643a16eca5b86e7406f9a14ad4. 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/ES71G2145389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e3ccb73ccb8a469e954f46be7ba977c19cf330bd337f296a9ce7e541784047. 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/TCABN1310204.
C4trÍo (feat. Jorge Glem, Edward Ramírez & Héctor Molina)
Pregones Zulianos (feat. Rafael "Pollo" Brito, Aquiles Báez, Adolfo Herrera, Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8aa71e6ce4addad976bb758e58778d87ce9753dbaac29ce4fe01ef1a9ee323. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCABK1275754.
Mambo Influenciado (feat. Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c33f046553f95363a688e23bd244f4fff53ac654f6acd8c6a23241fb50761d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABK1275758.
Easter Morning (feat. Serenata Guayanesa, Roberto Koch, Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570b2a0167df965f3513c939a0bd0da89054f81e5487765f51e3651fc56c7e28. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABK1275775.
Carretera (feat. Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697a22b62073db418aa8e69c9071851916e28fdd6eed810617a25c0b72d9bd3b. 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/TCABK1275787.
Media Luna Andina (feat. Marina Bravo, Zeneida Rodríguez, Roberto Koch, Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542a8678f1d8aecb75c1735ffd49c18a6ac36bb88132d3d16f789a3f660768ec. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABK1275798.
La Negra Atilia (feat. Héctor Molina, Marina Bravo, Zeneida Rodríguez, Roberto Koch, Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28da6a5022b18188d30a55f18b611f1471b0ffaa04d404c5f7a051a2eecc17ec. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABK1276573.
San Juan to' Lo Tiene (feat. Serenata Guayanesa, Aquiles Báez, Roberto Koch, Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc797d0b27e89e54d36924805e664c6c432e5756f275d06e1a4d4766e76d257. 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/TCABN1306469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0be0095e970a7362695de6c79eaeeceff463f81554b9cf633a9d44ce2fa6073. 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/TCACH1581632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe551232ae671da2e6adea975f6578dd3443bbfa779202a98a28d727c87986ef9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACF1564033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ecfffce5e900c58b94988e748cf421b0815a33cd9ad89a974e41d2cbf7ce34. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACF1564036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f6ff70a0c056671eb2922271c40100df62e1f5cd795b127c3cb27e498e0eac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACF1564039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c9329d44b68cfc8bfe1f466e0d98661d89ba43ff41df8edded9014a3e0cdc6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACF1564050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ca0bae90b3bf947c65f1ba64d73e20895e1f5c5dec2d4759126c57116f2d2a. 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/DEKM62300410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143c7659ff8d768402454c1ecf75478117c540a6d71d5e43a615c1b7b254b478. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3Q92061766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a86b0d8e9304156857d99db0817350216d4e1bd3288a40d030928e6732b9977. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJE61301726.