Leland Sanford Austin (born March 26, 1986), better known by his stage name Yung L.A. or Da Boi Lay, is an American rapper. He is perhaps best known for his debut single "Ain't I", which peaked at num
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 0x3e2c4eec2af4923f57ab445326a5259729dc8f010dde5b1c21b21bd81c3f46bf. 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/dd7a33d1-190b-4399-afe5-5999eff51b42.json and https://artists.proofprofile.net/proofs/artist/dd7a33d1-190b-4399-afe5-5999eff51b42.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 0xdf44a52454d41083b4d5311da2b6e9ab36b3f86716890ae3f84168ebaac12a42. 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/FR9W12358711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d89b3c1b65c8c95359502422e3abef82af68a09c58f72e4850db21018673673. 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/FR9W12358712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb037c20ade41b7151b6801e9b51489bb675696ef476952a350e1cceae65e8034. 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/FR9W12358713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2f00da532ff32d10b91a723d203c1cc3dbee69597e29fbbb729c559dbe32f4. 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/FR9W12358714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412ea47bf814da565e266a160719ada56b64164d2785ca6f4aeb6d920a5705d6. 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/FR9W12358716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5966584a4fc574780f82871a205c44a32bd294f4b51440aa3e4debeeeacb6bcf. 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/FR9W12358717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd6135e900f7d14eb1c69c48ee68d202f9b2e755164391805aee60f6d516cf3. 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/FR9W12358718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31934531dd92d5297bd4aae702246b4d8884ea33df740bc217f6b4e44c9d5ba. 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/FR9W12358719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707de7ea4fbb6615bd91a56e1e387efd0dc231c1f19b6595d0961f92930a8df0. 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/FR9W12358720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d40a22ee5dd62e8b20951d501c11b96a9bd2dd4762fa416ff308aa2dee541a. 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/FR9W12358721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604f7b2a8911febe7f00b9ebbd6b72c1e3b8430ea3a3b8068fd8594edb28fb23. 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/FR9W12358722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4669aa95d6a6635446edd03daf5e14d4610cb662e1fd35bd0126432d8b7a496f. 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/FR9W12358723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60afdd5f9ecb6894f73258b9750d11a81da1f0c0b990cff729edb0b2d25af2ad. 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/FR9W12358724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00e425d879a05a1e0771ca06f9ab7f0c54779b60b6509b9837228f9f1ba97c1. 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/FR9W12358725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ad8d92b7c84497d903eda6fee5a78683fdd28d9afada98ac1fd338617c8366. 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/FR9W12358726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ecc921106296afc363b87afd25e7ad7a45c8f8d025f3e14b878cd76c8ccfea. 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/FR9W12358727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa1b6112a696942a28b29e114f8db5796634d9ee0799469080eb7cdb41f0850. 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/FR9W12358728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc460777908920005aa6e638278c77576c7939c6cb7b0000b80c96211acc3f0. 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/FR9W12358729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19a6c9381f19429c85c2bcefbc034f5130a4d4c01282de52d1b1dff7ee986f5. 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/FR9W12358730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004381d3a8e9e154ed70bbb2c2fc0255af176f5d6ee746c3986aedc7d8e7aff9. 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/TCAJA2426527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100480c24a4faf06e9567f94c31fe176ddc720f292d74d9c52c5721f69a4e0a1. 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/AUMEV2517039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207b21360cf7a1ec171c70c00f650da0f49458b3f73845db858288c23c083b7f. 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/TCAJG2556317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ae6f48c1a089b28137760dfda5c2d503ca003e8dda883ce82799bc658095c4. 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/USUM70847682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4bac8cdfdac38b1eb9e2009bcc2d3f85730e30ec7b501b020dd11e8751a4ab. 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/USZEG1502463.