Levi ( ; ) was, according to the Book of Genesis, the third of the six sons of Jacob and Leah, and the founder of the Israelite Tribe of Levi (the Levites, including the Kohanim) and the great-grandfa
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 0x4f96857ff37fd0fc2cbf52e6829e06b144901be4245b990207ec6cefc1cd0ea6. 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/289bc372-9159-4603-bcff-a5d0fb9ae7ae.json and https://artists.proofprofile.net/proofs/artist/289bc372-9159-4603-bcff-a5d0fb9ae7ae.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 0x7fc754e80b58511191f4298a8944fd1feccd28926f9bbfa82204955b45637227. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZMEM2026024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035dab085d7b8f44cc9c7c1cffa4a3ce2dbd067d91ac5c098177514e1d03a896. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWV2007407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e42d52750da655a7b3c30f1b069f3e4d18ca51cac2199ff4fd694ce5226c731. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLG662100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b379e136103fba787e2e731053054874fe0c32fd9c4dfe0a8cac88cc894ba1. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZHN82156432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098ec3a18e1717f66aeaf093c80e39ce011c43c831d19cde6381fdbe15e1802c. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/NL3GQ2100308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93eec1ddec34a0d51aa81aae1f13fb569e4a6571fa32c050717f063a041370a7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:48:02Z), 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/NLG662300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c48923d8e5123acab3b51d95a087dc82f668ea68b9f7d8b5164a5096dfb475. 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/NLG662300732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c88bd6e134d1c86a21978d69d5c2a96caa8850f4c673dfba7402ab95fa595e. 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/NL5HJ2400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc7f1a7c4bd11a655be281d5ffa32597e43047dfadc4adb9030340dd372436b. 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/NL5HJ2400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b6c24b9c24cfc3e0c681e9813d333efc51025f126c64ab014e15c56701e4ec. 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/NL5HJ2400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64812d5e186baf59786ac2be27fed9089adcbdf818a2fa4a608ae67f610a8c0a. 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/NL5HJ2400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c88bd6e134d1c86a21978d69d5c2a96caa8850f4c673dfba7402ab95fa595e. 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/NL5HJ2400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b6c24b9c24cfc3e0c681e9813d333efc51025f126c64ab014e15c56701e4ec. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NL5HJ2400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64812d5e186baf59786ac2be27fed9089adcbdf818a2fa4a608ae67f610a8c0a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NL5HJ2400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c88bd6e134d1c86a21978d69d5c2a96caa8850f4c673dfba7402ab95fa595e. 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/NL5HJ2400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29a14c9c6659efffda4b43e4fe2d8fc5456c32e9abd9b9c24e0cfa4558278dd. 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/NLG662300486.