Anna Ferrer (maiden name Essex) is the president of the Vicente Ferrer Foundation (FVF) and executive director of the FVF in India. FVF has helped 3.5 million Indians out of poverty, focusing on women
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 0x84246824e7058f4393b2d98cd8a87b9a363f81a2a729897808606bad9b723c32. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc99b6f3-bd32-4cd7-b9ba-259c376893b2.json and https://artists.proofprofile.net/proofs/artist/fc99b6f3-bd32-4cd7-b9ba-259c376893b2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e995b44e2e5724ca757ac03a3178360e52a9d8b75c887f42f030de8423feeb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5231708569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1366e693b31f58675b7958844fed1cd4b5bee7d7828820565bac3529798305eb. 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/ES5231708573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afd07096e63b7d369c4692b95d6fc9a958a1f6a5052fa88ee77164ed702267e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5231708574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c57a8e09acaebcf6f954fb2d9aa2c34f580b14a86cb0f6b2180a059be52dc3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES5231708570.
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 0xcfff47547e7ffa8eafccb67d87d2cefff681ad738b97a4e05b30ddb5c771ae0f. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/ES5231708575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc940eec779e4e36462f3452fe40eb350e0672249d1526039707833448c65bbe6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES80D2410401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdb10a96e7506b402108f55242e6ba830575094aaa5d1f291735e0e3f03fb56. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA72256484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430a2ee5efcdde05c8bfdab8fb4a9ac21337d61ac86edd41cc3c61c7d5b257b6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES09S2100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e42f29955958782c18de7fb6d9c3fd8d054a508c6cd9f472da9b8d91019b38. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5231909710.
OMAC Orquestra de Músiques d'Arrel de Catalunya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec99660698b4fe686e811d9fc9d256c741d3b4c1559568790453bf9dcf863b46. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES8022200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44da59f8d63781db0ca4448ff869a14f5de5adcac331351648cb880293eaaf36. 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/ES8022200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf172935240bc230355fbe91d769a8930fef1ced07f27337f05d22708a6e47738. 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/ES8022200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea876d7e6823aace3652ff127c999fd8aff433a5c472fc5abf531dac5b176c4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES8022200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6f29695a37e28f57784a0fd61a6f66a79bea48100f91c28383264980664b26. 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/QMFME2248457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0540f4bc83d232023541a8cb0067b5a6a99172cd8f39c76e97af989fbf13787. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ES8022200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112fc2c7cf8392b2da90e7832565aa2ff68e95d7e10b45518eabf11d4a1a7bd4. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ES8022200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bcdda183ee6dc1615bbf2978838a6d860f2102fc9b31632b251d815d081fef. 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/ES8022200162.