1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xabd3eb9d29c7bf2fb55a63d93ace5f1c3edf77c407596895c811448e0d592734. 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/86947f4d-6515-4383-b877-f3da86967d66.json and https://artists.proofprofile.net/proofs/artist/86947f4d-6515-4383-b877-f3da86967d66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Entre la Ciudad del Sí y la Ciudad del No
Coplas del Pajarito (The Little Bird's Complaint)
Cancion Protesta: Protest Songs of Latin America
La Música de Chile, Chilean Music. For Export
{"copyright_id":"0x20d1e1d3ab708c332d6afb56907023f4de560dc38c08923f9ea31af67be21459","isrc":"USA561359536","name":"Mocito Que Vas Remando","registered_at":"2026-06-19T17:21:22Z","spotify_id":"3XASG5FYFNJCYCNkoLWESC","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d1e1d3ab708c332d6afb56907023f4de560dc38c08923f9ea31af67be21459. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3XASG5FYFNJCYCNkoLWESC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3XASG5FYFNJCYCNkoLWESC.
{"copyright_id":"0x7138f4e7d2e3bb59a9322094bba96b3b031e4c2a1ce4937eb608fddd23f1a712","isrc":"USA561359542","name":"Si Somos Americanos","registered_at":"2026-06-08T23:00:45Z","spotify_id":"5kScKNyugdcqoEPKWPpBq1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7138f4e7d2e3bb59a9322094bba96b3b031e4c2a1ce4937eb608fddd23f1a712. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5kScKNyugdcqoEPKWPpBq1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5kScKNyugdcqoEPKWPpBq1.
Geografía Musical de Chile (El Folklore de Chile, Vol. IX)
Folklore por el Conjunto Cuncumen (El Folklore de Chile, Vol. VII)