Padilla may refer to: Places Padilla Municipality, Tamaulipas, in the Mexican state of Tamaulipas Padilla, Cauca, in Colombia Padilla, Bolivia Moises Padilla, Negros Occidental, in the Philippin
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 0xc1023b2b8552a81c8facd430fb99133606fb3d1f7f7e0b94c8ee4f0988e528da. 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/90788e7b-1b6d-4a60-a38b-d8261db4f0f8.json and https://artists.proofprofile.net/proofs/artist/90788e7b-1b6d-4a60-a38b-d8261db4f0f8.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 0xede471d6dd047797657ac14458d04f82d218b9512bd6fbab50f1af6b2d6fb3c8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDA82416619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d0492074b9762b9181f1d0f9be8a8c9e877b74b2d9252c38f048dadda7433d. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZMEQ2489627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda57cb41e97a5b1b4c50b335883cbeb2aa3cbc0772fa2aa348b8d9c6515e8a18. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZNWW2406614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e67cb67ea0c064c838b96c1c05efdde9cd2cfa979f46033fb1db4d63504242d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZTAT2440492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e9cd114654665361343f19889b7e64af713d02c61895ffc429d261001541d6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZHNB2581525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965bab2faa8e7ec4fd0c0cec9c450ea0496cddcca5f6209a90aaf7803d4e0e25. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZK6P2589149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8321eb2526951e83a4162ab840f1a169db9860eb95e1f4ec198ec14115617c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6P2589151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e9cd114654665361343f19889b7e64af713d02c61895ffc429d261001541d6. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZHNB2581525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bf40416ee235e9b3d3c56a40429a907d157be0f27ca560108a86c0add17d54. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZK6P2589152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cb669e9e78d45549d81f8ce3cd1114f9f27d5fc0b66efabfc159d434f09a1e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZK6P2589153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570fe96dcc57014827c56448e4c8a82ca6811699f6aec3a2f54b9b00494b19cf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZK6P2589154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea63c080aed31384615be2c5c6c58261584c6958a7d397eb9c76ed53c2f8abd7. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZK6P2589155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b418c3b4bd3a990e6fc89fe289cd4e1f7af862da879bc5ed9c48536e155341. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6P2589156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e2da0948ce7272a393217c80be2e854725cba658c7825d651d498914c4b518. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZNWY2553587.