Virak is both a surname and a given name. Notable people with the name include: Ou Virak (born 1976), Cambodian activist Virak Dara (born 1947), Cambodian actress See also Vira (given name)
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 0x3e69b83b2c0b4190281e4b7cac990b98101fef92962e582b3925e9f3d5856ed1. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/746d4ba3-248d-4bab-a2d6-1b786d4e7505.json and https://artists.proofprofile.net/proofs/artist/746d4ba3-248d-4bab-a2d6-1b786d4e7505.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 0xd2f750545f02d7203b4f879969c9e7635d0d6bd261133721427f0b0bc3286a09. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/GBLV62012896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158617e8f682f8b84e20dfc780494376042a4de9f68a7b4cab4a3fd4fad0862f. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/UKU332000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35483a1a69d2963ec2e29410a9deed126483a41bb6fcdf147fda42299bdd5c2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/UKU332000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bbd472f742c3bf188fb1c03609c22f20c1c799754dd4ab67bb74db46d529d3. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/UKU332100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad165f8afd9effc2ecf490337582df9f4dca6360f4f28dc5e14d15fb4859d3f7. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/UKU332100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6a7335e0a430020da4e41e7f28589087c90d4867a36455d359143e07e34ddf. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UKU332100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab581771dee4cedfe84c2642565e23e83bf2e859bfc58b6fcc28ff74d190a9db. 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/UKU332100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4db231ccd84e01628ea09a017879315e0df7094638c5737ad4c8adf0ee158d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKU332100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61255a0a1551c3e553c7a82f53a4ee1c99abce13efdc191884c5c22880271ffb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKU332200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc764f100e9a8e30719ad78bd4c274efe26c895daf68ddc6bae4c2d26d748511. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKU332200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5a17abb816ac29dab88f2bea0d94ffc2bec6bd61bb682908c02c60e3d85a89. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/UKU332200113.
Siento Libre (Band&dos Remix) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9cd04b21b58f69e2e8be7f0ec7e3b089154c1b15b6076783e20b0157e10c13. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKU332200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc764f100e9a8e30719ad78bd4c274efe26c895daf68ddc6bae4c2d26d748511. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKU332200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c56d742304df6a1c32231fc8a3c491e07defbf4b2396895602dc76ce9c73b0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DECM82501240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d0a060cf6364e9a112a8630531014bccfde4f3cfc8acdeec6ac25e51c51640. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKU332400386.