Javier Martin is a contemporary Spanish artist raised in Marbella, Spain. He currently lives and works in both Miami, Florida, and Marbella, Spain. Work Javier Martin is a multidisciplinary artist
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 0xdc177c93807e3b2739bbb0d9dbbc532835eccd5218c83a97255c9713a7700ba0. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b26735b-8f1c-4d3f-9e03-78162e173131.json and https://artists.proofprofile.net/proofs/artist/2b26735b-8f1c-4d3f-9e03-78162e173131.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
¿Y el Cocodrilo Qué Hará? (Versión Latina)
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 0xf72eb7ca0c1acb0c0cca628b437086755997a5cea95f82842ce7a9402061e6d6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES20I2000590.
Bach, JS: Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
Bach, JS: Violin Concertos in A Minor & E Major, Concerto for Two Violins, Brandenburg Concerto No. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5e33000f411df41f3ef5b89c50538e8e57f63d919286c16fae3e3bb64ef0b2. 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/GBELP0600120.