Sashika Nisansala Jayasumana (: born 28 September 1981) popularly as Sashika Nisansala is a Sri Lankan singer and playback singer One of the best known and most honoured singers of Sri Lanka,. She is
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 0xbf044685493ce2fe8dc53f9cb929406a2b5aefb7a2bf62a4b8656ae3a48a5d36. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e24b1d20-0b5f-4aeb-a349-d186f04ffe99.json and https://artists.proofprofile.net/proofs/artist/e24b1d20-0b5f-4aeb-a349-d186f04ffe99.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 0x48d6d7425b3367afec7b761eb0ed2c76f5cf9721094dc33f55d068075babc76d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZHNB2065698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0725a80138682aa04b8243b0f22a2a8c6db50ac95c6af8edb207a966b1a2b1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/COA721600857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f2f0d77eef7493007bce1e8694d3015b268a1315fe8f3253b6a21d8b3aa2b8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/COA721700343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0f0092cd04da144925bd8b9c8982aa65eb6480ec61f7b7e70615e85b7ab3d7. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZK6L2195508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa010ad42dda54ae1586cdae332840d5313dda8f39dec8965c6d88dcf7ce108a9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6L2131955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b3dc46341b12c5d8f18a17f7fa2af67b0bb870f0677b119e3ef8e86346817d. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:52:36Z), 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/QZK6L2143207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b914a22abc91b9e69b7c7c38157fb3116d14054e2f61eb0fb100407f0caa3b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZK6K2170082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8cdf31b5cb0279e860837ebe6a0b0f2c6bf51d7b516cf49130b4bd6cf84a75. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6L2198417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb9e63323719a79262fb9c95356841765eef6a2b202b98e3b7702df25035849. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZHNB2057768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce798a993598d175ed418b18a651063ef219786d46fddfb148ef093f05562738. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:49:32Z), 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/LKA000015093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce798a993598d175ed418b18a651063ef219786d46fddfb148ef093f05562738. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:27:26Z), 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/LKA000015093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f196a8f11c09138427b2b916be6783f899fed199f6b7e9598b21379f1821ae. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHN52399726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14435b19228007b9af97e09f82cbe8d73edc1d9618a73c56c77c1b4b67afd1f1. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZQAY2377593.
Dethun Wathaawak (2FORTY2 Remake Lounge)
Dethun Wathaawak - 2FORTY2 Remake Lounge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c6c923a73a4a8e5132213d17adee0f3495767869f1736c80127fda9f4b4f5e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/LKA0W2401098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cce9d116de1c377a151a47201d09a55b8aa0a3e73da7fea20ae98cf5636be3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTAU2595676.