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 0x2d47248981ed7c9933d3f8fe47da5d569c7c5ba0ee989da4d78db71360b255b9. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe516ea1-d3f4-4b1f-9725-0727c8c601e5.json and https://artists.proofprofile.net/proofs/artist/fe516ea1-d3f4-4b1f-9725-0727c8c601e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
C4trÍo (feat. Jorge Glem, Edward Ramírez & Héctor Molina)
Pregones Zulianos (feat. Rafael "Pollo" Brito, Aquiles Báez, Adolfo Herrera, Jorge Glem, Edward Ramírez & Héctor Molina)
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 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.
Zumba Que Zumba (feat. Adolfo Herrera, Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d87f2a9da555fd8b4dd0b6c0403fae214211a275087d8c5ff016c4b4063b7a1. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/TCABK1275766.
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.
Amalgamados (feat. Edwin Arellano, Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346afa986add7dbfcbe86763fb0a117be1276c27f915983ba86f51534ca3df05. 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/TCABK1275789.
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.
Utopía (feat. Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58beb543d76d457ffe223cc4e3f313c9623de861b008273d3acfbc4e2d8977d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCABK1276283.
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.
Pez Volador (feat. Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb91e40c6d511b8bef9de9d366673df936d00e24ffae9986f04c1344051ef45. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCABK1276578.
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.
Preludio Creo-Yo (feat. Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7919c51f06caba84e88957eac88e87e6318c375d5f90dba7c69c6ba7b8d4a051. 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/TCABN1306475.
A Night in Tunisia (feat. Jorge Glem, Edward Ramírez & Héctor Molina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118f341e0f8406cab7ae6876756141438ecc363809cc47343f331e77bb40e738. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/TCABN1306478.
Navigating Foreign Waters: Spanish Baroque Music & Mexican Folk Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf0deb484e3194464d087fea9ee79dcba20aa9a72a6ae50d23a0b98582c131f. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/NLY332003600.
Retablillo de Navidad: Retabillo de Navidad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd9e0c2cee04a7da9de10cda43abddcfcc25c707e4b5c69dda31b9d26a68e23. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ARZ021203897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fec846db01056bdd96ea0e1571fc9e8f4f0ae962111bb00bc58c5500bd2e91d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ARZ021203898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb442663fe887bdbc25e9c240fedc68c364e3726ba053f0855b2a4d43189727d3. 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/ARZ021203901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e58ca55ef97c44c41a3bd5dc62c468556357081245aebcc8fdae0756f2c73cc. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ARZ021203902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212848be8ffe5cf7dd102a9b1a7b761509c2c2e67ded56b37a0e08f5e8de532f. 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/ARZ021203904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54aa6e5832c67a1c4ff8d55e082c34f90def6ec01044f60a421f0eae3e704565. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZBC81800009.
Transformed Reverence (Beyond The Standards Of Jazz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4fab8819a6a7225d60c7996529d785ea03930835aa42d8affeaedc86cd5654. 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/FR50X2066416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed21d7546bb38f2f60148271364dbd23113867580c6226fbecdc0741dbd088fc. 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/FR50X2066401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4489c0ef77e676f509f28c75d9d233abbb8e125e17ee3fcfe496ce8cb68300db. 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/FR50X2066402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b5f4e43840ff0520e29e6d2d2f5e6b0ef5ad8d13796a60db99780b2b226632. 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/FR50X2066403.
Nocturne: A Kind of Lullaby of Times We Have Not Yet Lived
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5c70e229c5fc9b8e079dee63133fc1fed13f43c6f98378e2ce71a291b8bdc5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR50X2066404.
Concerto for Bandoneon and Chamber Orchestra "Aconcagua": I. Allegro marcato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e5e04456d92e914cefe77352364fd67414d9f0b6987551340f74846a8e060d. 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/FR50X2066405.
Concerto for Bandoneon and Chamber Orchestra "Aconcagua": II. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57ec4385dc4bedccde6f36618f3aaae50d45b2d8f78cf127bd236acd04994d8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR50X2066406.
Concerto for Bandoneon and Chamber Orchestra "Aconcagua": III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483e29e03d22c32c3c52e80e0d9a5111e724a7a98bb31dd7ed29579b28c1b148. 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/FR50X2066407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47337ef189f94d2d6cd8c2ed4780bd25ee04079154d4ad2e0ad6ff6e5290085. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2066408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf454eed0810a2f7cc52267a8d66620c3d8c3016b2b1dd6cab3e4de2279395553. 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/FR50X2066409.
Fantasie on a theme of Piazzolla – Chiquilín de Bachín
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d880f515526558a57b63b6f2c45a4f3005bc6e5178a360022bcf6d2b2b1536. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR50X2066410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd20e8a33b64ad787294a4ed53ff702bb7dda77adffdbafb98eb9b8aeac1ba4. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/FR50X2066411.
Adagio in D Minor, BWV 974 (after Alessandro Marcello's Concerto for Oboe and Strings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb5d42fdd6a82e47ac882a9a257b5cc1fb197029548eb88f03a07788582d374. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR50X2066412.
Two Keys to One Poem by J. Brodsky: The Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf003cde288b8dfcc3ccb82d8caff0dec99993ac7a0a79365fcdf989bc5f99c. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR50X2066413.
Two Keys to One Poem by J. Brodsky: The River
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6cd547007efffc8610b9b7280778accee4b04e5688a6ee8e3cfccf08c8e991. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR50X2066414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e8a5fb3a0d160650b7a290dbdb2af9bf257159a653218852e5cbdaaf72d340. 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/FR50X2066415.
Chau Paris (Arr. for Accordion, Piano & Double Bass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed21d7546bb38f2f60148271364dbd23113867580c6226fbecdc0741dbd088fc. 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/FR50X2066401.
Mexico Music Fest (En Vivo, Tuxtla Chiapas Abril 2011)