Núria López is a Spanish chemist who is Professor of Chemistry at the Institute of Chemical Research of Catalonia (ICIQ). She was awarded the Spanish Royal Society of Chemistry Prize for Excellence in
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 0xcd83c9ed1e9f514427de9cf2865c86f9dbb240a5f8d4013293c1883cf4ffcf25. 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/6439d49f-3910-4ba6-a40d-500ba842d0e5.json and https://artists.proofprofile.net/proofs/artist/6439d49f-3910-4ba6-a40d-500ba842d0e5.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 0xdde8d59c559107c0efe39ebda169ba7665473d4188b69792b28a67221e943c55. 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/ES17D2302201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4d74d88078681d98c0495ffc80ca366f5a2df2cc472095ac69308956d167ee. 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/ES17D2302075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b85374a8eea4b37a3b74066e34ecafceeabe591ed730843dcb383430618fef0. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ES17D2302042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a359027fd6ba03bfe27ba4c364ced346c35e777af8087d3659a61d265a0326a. 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/ES17D2302077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3876d3bd8fae3ff8699d44d7aba762df87fbd88faebcc0835661bdbee3c167d3. 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/ES17D2201869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c646c511c99dc2e385b4d8532abd018c61752dad175ad4125adc20b09501b6. 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/ES17D2402271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b85374a8eea4b37a3b74066e34ecafceeabe591ed730843dcb383430618fef0. 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/ES17D2302042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a18c0e7b4b20938b4bd5004fdd9ab73ad20dbae2a6bb83d012f67ddc5f20f2. 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/ES17D2201938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf027c42bb204fd04f7ce288812f7029cacc04a07cf19690ce9c5a0d9dd6ab981. 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/ES6092200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf3f0973365ce8717886cfa9f64ec55d1fcaf447e6c9beef0f307f05c4969d3. 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/ES6092200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0cf0b37f1914850c4a4e973ec7cc2caa18223be2e55e7e9782e4685025e526. 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/ES6092200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946a75d9c0a08e68854c86264f34c7a6ca9af9be76fd4254d651c408b02299d5. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/ES6092200197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ae3fdf17cd08041739ca88f845e1ebe162429fcbd2bf50eb2e6211ae1c48c8. 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/ES6092200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2aabc4aef400ee3463b31aa6a90989088bdbc1c05a04b7efa0880131f4feeee. 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/ES6092200213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd575d6416b44824650f2bc56b39a9e6c14fed0c8c7bd1fea8f5da309d5a3ee5c. 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/ES6092200181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136a73d1d257d0dc177130f63c5c6886a406d3b952cc367dd07a5cd557137b16. 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/ES6092200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe20dd303033af16cf09b8dae16ee3a029fa17570652015c4c7e207884476fb4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES11D2300848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbcf92cefa9b41ec116fb46e492f30fb29d3152503c0fe90d764fdcdb689c67. 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/ES11D2300849.