LeVert was an American R&B vocal group from Cleveland, Ohio, United States. Formed in 1983, LeVert was composed of Sean and Gerald Levert (sons of Eddie Levert, founder and lead singer of R&B/Soul voc
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 0x6f54f9b7feae683318d7a86ef781b9fa5a25eaa8309d0d857e5f16869f1da320. 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/9921f171-cc1b-47ad-93b3-9b068389b0fa.json and https://artists.proofprofile.net/proofs/artist/9921f171-cc1b-47ad-93b3-9b068389b0fa.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 0x6488dde6832d13303b664510d5a8f8f970d9331afae9cda43b8fbc7e29c17954. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:34:22Z), 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/USAT20180031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30eaceaa5809aa1f56af9207b6baf38cd50a363fb309af82e456cbb78972dfe. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:16:11Z), 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/USAT20180033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ef196d8938310c406e05373757f2d4536ecbb6e908a67354b918cfd80af26b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USAT20180034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ea65b39567e9ecbd8ccbb7345acad325d95bf20ae5a2acd53d67bda0b06489. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:49:38Z), 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/USAT20180035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f52a68df3f554be2a179f6b8b52f8118951d0d9e47dc985d55edb45db530fe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USAT20180093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3337c10b7d97abcebcc889c771cb6f2574404c18ff86c73cccea61d363d0088. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USAT20107507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8b149ff7e8a958f011e4743f1200b62670d31c0aa74c125caec83a05e2c2bc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USAT20180095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38956be2ae055819a49d9590e95b490b1fef496721a709219dd6ffb0db7e64bd. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USAT20181258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d181facacb3f1c6a1f3d90e959f255d723b3e4084d97c838c01aed8e564666. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USAT20107383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28fc5e462e1a2fdf0b98caa48cd0cda86874b6edfb209e300b1ffea9945484d. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USAT20107387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60eb4d25efa65a34e148ce62a17766d12c25a0a768799015d98933e1a6e3ca5a. 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/USAT20107388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7b1b5614bc84f15cc62d3fed29a358cddd9dc15e3b4d08f12d8e19ce62bdd7. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USAT20107389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d93625e4c6558dad008247c1a349612489f3470c62bb6a614f625cb44481ec3. 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/USAT21001460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0d14207085d19bcc5f97cf48df64637fdad05c4502ee17eb04e5ed72910edb. 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/USAT20107390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d93625e4c6558dad008247c1a349612489f3470c62bb6a614f625cb44481ec3. 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/USAT21001460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d93625e4c6558dad008247c1a349612489f3470c62bb6a614f625cb44481ec3. 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/USAT21001460.