José Cruz Dilan (born August 8, 1947), nicknamed "Cheo", is a Puerto Rican former professional baseball player, coach and baseball front office executive. He played in Major League Baseball as an
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 0xec7e18f77f1d912e2d8511e0f630178ea96b327015b67489a0eaee063fb9c69d. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7051483-0251-4389-ba4d-57a1aad303e7.json and https://artists.proofprofile.net/proofs/artist/c7051483-0251-4389-ba4d-57a1aad303e7.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 0xda38781c0794ef700e42c67b9b5a5b49208d10a5b5eec72586ba68b5cbd97ad7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:53Z), 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/MXF600900049.
Recopilación: Canciones Emblemáticas Seleccionadas por el Autor José Cruz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00391079e2cf6461e3301146efa1e746d2cb65c830d500d516ddc0499bdd22b6. 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/MXF601200453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc17f52e9354d8c8489ee40e9c7f8af608d0d476604f658fbce2958e665e7c3. 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/MXF601200454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238405fe336a84c307fc374163933399dbe959ddb29abeca831984124167d485. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MXF601200457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8d2d4763382caf0cb4bc01584a6029ad7df13ed1cf598db254fe6018c27ae1. 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/MXF601200461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1914dca7536a8529f22d68bffac0141de173fce39e473d01db2caee64d2f21. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MXF601200463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe534c5b3de6055612c8c5a54d90cb84e70edf7affc3d5b8dd43152fd12657d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MXF601200464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8ccd645e484c14a1fdadc2e5387d4bc3a78e51506ab4f8f7516ce06a75e348. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:51:13Z), 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/MXF601200465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c478b518fc93cb0b763a83c7919fc46a16ed64d8a06f9f199257dbf153ba3b. 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/MXF601200466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ff62120ebf693e43b79d21236ee9c8513e410fe1cff8e7f590e7e92d67f6e8. 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/MXF601200467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65454b57c9f461a167072efea01e557609de20ca5b458f412cbc9500adce0e7b. 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/MXF601200469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b4441ecc307d32a759f2153dc64000da1cec551c7f3be78d630df696dea688. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/MXF601200455.
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 0xaeea372144c1d05ea37a7daa09962fc90cbd2b52c4f5080d4f8278e9ee73cb43. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXF601200452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e867a122f43b4b82c5e33c59f29655038050cffdfde6d99c07921d51b07a11. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXF601200456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ca21e52a2204679732509850f89ba270306f113b3bbb2ad212efe09885896c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/MXF601200458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9736ca53fbff03780c28252ff8ccf0ebfb0c0cb35791d8d79e410e68512982. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXF601200459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef58a3dbff768c597e735d6342e972b7f5decc11f158c628101f5ef3f0d86e7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXF601200460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0f0bb94d335f40ae9158f3ef76f0c04149f36b09684eca0cda453420dc9ccb. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/MXF601200462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbd9a71a46eafbd435fdd09182b76f84014c8544461a85ab7fc42f62e630bc6. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/MXF601200468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a885cd856d87331c74e199df3b3b09b26d119e69a3ca5ea4c75cce7f024cbf3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXF601200470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e610158c128d5e301e750951d3b98befb7fb542c0af6cda14f7f47261ee126. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/MXF601200471.