The Lebrón Brothers are a musical family born in Puerto Rico and raised in Brooklyn, New York. The brothers are Pablo, José, Ángel, Carlos and Frank. They provide the vocals and rhythm section of
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 0xdb8b0c749b9fcec285abf80a6de4b589a34094c8d00f4b041eee05d61c83dfbc. 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/45a14dd7-84e2-40ff-a610-eb21033da8fa.json and https://artists.proofprofile.net/proofs/artist/45a14dd7-84e2-40ff-a610-eb21033da8fa.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 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 0x410cd895e72ec12406a3650e31cd7bbd52349d24dab5eaa11d407a539f901792. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USDBB0600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80355c9ea325e61308b4f988ef607054e82a7f2dbea7fda6859d3344e53f3619. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USDBB0600144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5cdcd4a7e8133eeef6bb5acf61687b6028d7bd3dd2969641f3b90583ca01ba. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USDBB0600147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d75d85a7a112103094bb44fb2d9d1d1935aa53a415826f287ae8c3acc3338e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USDBB0606657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bbf8073e74b234c7e2e0a91664e489c17213d01aaba3e980c9bfddd30f9005. 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/USDBB0601132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d38d0f3800b7ba75df76984db4ec0a3ed158030c904623e718d0b788a7fe4ea. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USDBB0608460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efda84b83dd6399c1e82f9e6ca6b3bf2ddf6fc4314841e710201d7d03afc0e4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USDBB0605030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6002baa2e0d2a61e5ec72e9cdb1a46822233d1a2d7c39c3a2ea73f2c20fc7472. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USDBB0605480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f66ca32e0b6046c300ec40d208921133d250d596445761b6bba87928c816ac. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USDBB0604879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0261183ccf6d2975c35f519e55d35aa44c462f3fcde3be52ec073e9225be7fd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USDBB0601598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4111c43a94cf1e41bce1d23be1607a68b41476a9559986d1adf71db379c69614. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USDBB0600580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e3b20c802a95010677378b7d2b142c4b5fd90029e4c2deb6fe7c0c4f4637dd. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:26:51Z), 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/USDBB0604434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8f25257127bd2c962835e23f8d27262979a304f1c094214f8565657a4683da. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USDBB0600568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab9f4c7afc438b88b5c616b31a353450d6006babc653fc3a05555457a664026. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USDBB0600913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e40799d2d964b54ff76f2f5298d7e8a13a30d8eb031900ee01a440d2502a1a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USDBB0607363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a74aed38a1ae2151c829380f68e938c6677de06de2bddedc15ecca98b494440. 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/USDBB0609125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4be6fe88cecd47ec258fbc5b93edeee9b11dc43d6a7e5fe6d300bd7ff53c3e5. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USDBB0608598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd35fc88b80ae059df86385340801707958837a020200ab1c8900f046e176992. 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/USDBB0600793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dbc24c9a9aac4d8d3bba0762974909107afb20a071199b5f5c4b2f38634c33. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USDBB0605407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa24a95c393ec2b300297a28c699463ab5dc48ea4bf414c02da9e5619e194ef5. 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/USDBB0609539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02a16a85395f9ffec2b80799e7cc066b71a09488280967ada8908f6a991a067. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USDBB0609515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616f6fe81fd487272c2fa7175e54549444cb3248ce0d223a4263dd7a76027f7c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T02:01:49Z), 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/USDBB0606317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b6c03609c17fd43f961483b048bac729868c7ea358be6093fd12d9e556e24c. 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/USDBB0606919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fc2f708d9b5dd6a666c6ff317b7845819ea6afe6681d5ed00e2a7a41d63a39. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPYN2262704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b2de96ab259d5d3cceea799f6200b61e7e1bcaa901afa22653f2a758630c74. 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/QZPYN2361959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c83e40709a4e4dd0306cc3898f1a7dda0a4f7763e1702466d4a55829b4ef04. 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/US3GD3515377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa289fd469abf46ed423a7e090a405d8cdc02f0c37a21724f792d048e2e2bf2. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/US3GD3515378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771de58f386759d2ab430b8418f63bc605eaa9355a6303db6c4d2f6f84c17607. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:48:16Z), 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/USDHM2406183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1d816255150eb7af4c8d5576b02c554efd5f03ccf51771a2e332de942b7f2d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USDHM2406186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb662e996f6ff8e4c815a329d341cb2027cf389b91ada4886228db9c4f99bd0af. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:26:05Z), 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/USC4R2447016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf57b3f918c8f96111490180494b6f1390f7d1e2da60484805e83f913fe29450. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USC4R2447018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e4bfabcac52f8e4c845945bf8bbba30ea7cb6b2c96afb88223cc43d298b21b. 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/USDBB0601618.