Anabel Montesinos (born 1984) is a Spanish classical guitarist, recording artist and a professor at the Conservatori Superior de Música del Liceu in Barcelona. At the age of 17 she won the Francisco T
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 0xc4db0a91bd523b947d7ee20e22fa16d4ef4b6819f270a1e6ac436f1c5c4f56db. 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/d6ad05fd-320f-40ed-a389-9c2c1ddc8395.json and https://artists.proofprofile.net/proofs/artist/d6ad05fd-320f-40ed-a389-9c2c1ddc8395.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El sombrero de 3 picos (The 3-Cornered Hat), Part II: Dance of the Corregidor (arr. S. Behrend for guitar)
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 0x414643b9b8956c498023aa73cc666608e8408b439a7029e6bd9610c2084df09e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:04:11Z), 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/HKI191130903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25663779ea2beb50f5ebb9e06da3167768bbeb1a4203bce0d1e7d9a434f0611. 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/BXRHI2200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3a0b4368b4597adfa3021ada0036ac924d025c5911a5997bf6400907f2ebbb. 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/BXRHI2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafb3b381483e271c27162daf1b9db97ce8939d9ce81c192ab1cad89e7f9d34d. 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/BXRHI2200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0b24e2e0621d3366087f67e2e3aaac2731c61969fc3780ccb35c6459b8157e. 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/BXRHI2200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9985d8763ab8f722644bb593d393d5481bbe107bae056619a5c435b87a4f32a5. 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/BXRHI2200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f0603d3c6a95a38b05b4454f9b63ab3f44c7eb1f55dcd98557ee4d7c372a2e. 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/BXRHI2200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5dfffd01fe03c8a9bd0420a58e3d85e3d67066ef39551aef25120c687c99d5. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXRHI2200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192882ed0f3aa309aaaf756aeb00a21f53dd0addc6bd8aedba4b576bf30fbe7c. 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/BXRHI2200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad722dd5c7e10b8f196878978368e1829d460155cbd4e5944f95c963e2dd3e7. 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/BXRHI2200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cf88841f45a50dda3df98c61736116d4cd7235be96c5f167ef224f60593946. 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/BXRHI2200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23170b55ce9967eee4f20a046efd74a0185b64b990e978308dbb635fc3c1927. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BXRHI2200055.
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 0x43d06b1347038a3494e6339e7cc39cb244b5ea1107084d59275c525e8b37ef65. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BXRHI2200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c188bd07c9c5eca523b13e3fa902e5638188dc2baad8143a98778087dea1f2. 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/BXRHI2200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb867ec9d673fb3f1ebfa00ae2de50bd0a95a40008bf842e579e7874dcd73e7b8. 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/BXRHI2200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4bb4341a2d57973b102f8a33dac9daf45465f0fe01c8e3412dbe14dab024e2. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/BXRHI2200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05de5b90bfaa889420f20186ae635e4976b6d107fd9151ef06d6e81214073cd. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/BXRHI2200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77d376be3c3d2777d6b5386232e971ffaa471166ecdbcf5798de689ad0a748e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BXRHI2200066.
Ponce Tres Canciones Populares Mexicanas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec13344840451c1365897d0ec979d2d7c8a3f895e3500dc157c08b5f868c4339. 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/BXRHI2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bb83108f0ad81c62121e8ed33db1e7f7b8fc9dea00f35eeeb1cd01052762bd. 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/BXRHI2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985d2ca855e3710434a08984afd43c0accfc0cd8878643c35cd3e13fbb43c4d1. 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/BXRHI2200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03466cf58da5cbd70935c6de38287437363931a84f6444075bc50b668589eb48. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:23:10Z), 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/QZZ972438515.
7 Morceaux episodiques: No. 7. Les Soirees d'Auteuil, Op. 23: II. Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d97d6d0b39e778a025da56983e0554845b9708f59feaf784a14fea5732d645. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190318003.