Laura Les (born 1994 or 1995), previously known under the moniker osno1, is an American music producer, singer and songwriter best known as one half of experimental electronic duo 100 gecs, alongside
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 0x4c0401e6ffa8a488210cf5e6f23fb6cd18ac2d2a8797cd15066ca3fd55cfab92. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5dc5482-d040-45d4-9cf7-eb0384580b92.json and https://artists.proofprofile.net/proofs/artist/a5dc5482-d040-45d4-9cf7-eb0384580b92.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 0xad664d6914fb2391645d2ffabdf570dacac77a080748fe3f1f5ee6d5369410d2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S1820110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191d613ab7afba75ed0330e8449fe2fcd02e7fab5a246d8f481fa8a87c28b41f. 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/QMCE71303041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad664d6914fb2391645d2ffabdf570dacac77a080748fe3f1f5ee6d5369410d2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM24S1820110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eade74ff4840b8170dd1063208a979e227fc3a0055f97089203c355ab9c3543. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT22000414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff761183a5dbffd1007536f1b2de784d03562b01d790563cdeeff14cc2026e9c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22000415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7aaa5dba009938b39674cb8605cefa8a8c7fc370651ccc2726fab57e631909c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT22000416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b4abf09051d1f40c46ce8ed91ae20bb83c4516b6aa4433778c10b615d1ebd4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22000417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5e71fa646affc4b330c6c5bcd3274c8748929a3af7671822ff5af62a9432a0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT22000418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387b6dbb362fb43a0132c2d586a6bede29e60088d46174ffad9fc31b745ea800. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT22000419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd15fa6458c72158a8c5f9b2fd74a9d713432629dec1e5e25f82ca12d734371. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAT22000420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e2b2ea493c1ef3fb745ce9ad51dc892621aac21ecf9cb0c0d62f6ca22c9bdf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAT22000421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d910d7e756a5eca4ca1c69dfefe14c7d00a7614b4f0133e36e234f673f57a7e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4718d95c1353eba1ea064e1e3f2cecbcc47f2f02d9331b6690714b89052b59e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT22000423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff761183a5dbffd1007536f1b2de784d03562b01d790563cdeeff14cc2026e9c. 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/USAT22000415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac1ad5c7ee36ace9cee90c706a259846dbfefd3727f228af08e92eda3d6a84f. 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/QZES91829083.