Las or LAS may stand for: Places Poland Las, Gliwice County, a village in Silesian Voivodeship, southern Poland Las, Lublin Voivodeship, a village in eastern Poland Las, Silesian Voivodeship, a
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 0xf76b3eba303ca54f5843388aea92e684e8178fb8380e7fd497130b2b4e57164a. 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/452f4f4f-36a3-4d0e-9292-57b8d389cd6b.json and https://artists.proofprofile.net/proofs/artist/452f4f4f-36a3-4d0e-9292-57b8d389cd6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nevertheless, (Original Television Soundtrack, Pt. 9)
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 0xd609a01268b8d1bc21b903d95f68c2c38469c5bf001c7e906cd8d2265ee16a11. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/KRF702200192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560a525d77e38d00df3d97ef40420075665db080ecb1ca5d7a7700d108fcd8e6. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/KRF702200284.
The Interest of Love (Original Television Soundtrack, Pt. 9)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712e309ecb03c9ece7ef3f56db14e1ea3e85de591cd77b9a26e2bc1a5c6f6814. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/KRF702300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b2447ba618f2de38e1e51cd9a3e21e521dc77a2f66047a7f4d956c0974f528. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/KRF702300265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa874fadf7731af6dc339e0b8ee9ad63376fa9b1dfaf6129ac837a8b6a901be0b. 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/KRF702400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e0a7bd025ed20882523fa31d2dcf82a3fe7bd1284bda284d26a4bbb25280c7. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/KRF702400142.
Frankly Speaking (Original Television Soundtrack), Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad4bcfc39b029023e6d5bfe017bf83c08b82c8529a51f38bc4861e98779e270. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRF702400174.
Miss Night and Day (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83f44a19b0b31fb59e2cea70f7e551201dbc349a07aa6595ef0949898f1d991. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/KRF702400275.
How to use love (Feat. Grizzly) (Speed Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238aced248b4feb065c81531fbd059c2fe2040c30cecae105840b5df71a16c51. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GX89G2501871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2834bbf3d8901e4e06ff050fb1b3e6de64924d0575f183ae1d44f5bf8e3dad. 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/KRA382207854.
Ma Boy (Ma Girl) (Prod. LAS (라스)) (Inst.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0920e5e50194940c22764efdbbaf64e62e9c75baadae42c6397088cfecdf18. 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/KRA382207855.
Frankly Speaking (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c9e45c9dee2c00920a1d23dadce73ca904eaef53d42d935e6580ab6af02976. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRF702400173.