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 0x074be36a9eee8a34ab9c70c8029cbf8619de5150e6754b2a0a2abebf51c444bc. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ca967a6-15d9-4171-8f20-79ea2f97b296.json and https://artists.proofprofile.net/proofs/artist/1ca967a6-15d9-4171-8f20-79ea2f97b296.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sujatha Attanayake Evergreen Hit Songs Vol 1
Sujatha Attanayake Evergreen Hit Songs Vol 2
Sujatha Attanayake Evergreen Hit Songs Vol. 3
Sujatha Attanayake Evergreen Hit Songs Vol. 4
Sujatha Attanayake Evergreen Hit Songs Vol. 5
Sujatha Attanayake Evergreen Hit Songs Vol 6
Sujatha Attanayake Evergreen Hit Songs Vol. 8
Sujatha Attanayake Evergreen Hit Songs Vol 7
Sujatha Attanayake Evergreen Hit Songs Vol. 9
Sujatha Attanayake Evergreen Hit Songs Vol 10
Sujatha Attanayake Evergreen Hit Songs Vol. 12
Sujatha Attanayake Evergreen Hit Songs Vol. 11
Sujatha Attanayake Evergreen Hit Songs Vol. 13
Sujatha Attanayake Evergreen Hit Songs Vol. 15
Sujatha Attanayake Evergreen Hit Songs Vol. 14
Sujatha Attanayake Evergreen Hit Songs Vol. 19
Sujatha Attanayake Evergreen Hit Songs Vol. 17
Sujatha Attanayake Evergreen Hit Songs Vol. 16
Sujatha Attanayake Evergreen Hit Songs Vol. 18
Sujatha Attanayake Evergreen Hit Songs Vol. 21
Sujatha Attanayake Evergreen Hit Songs Vol. 20
Sujatha Attanayake Evergreen Hit Songs Vol. 22
Sujatha Attanayake Evergreen Hit Songs Vol. 24
Sujatha Attanayake Evergreen Hit Songs Vol. 23