Daniel Fernandez (born December 22, 1981), better known by his stage name Def3, is a Canadian rapper from Regina, Saskatchewan, based in Vancouver, British Columbia. He is the founder of Ship Records,
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 0x2bdda277969bd1ae651cfb9ae206c73be208a6a4f42404628325376bd6d221b0. 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/1120ce51-eb55-490e-b098-3488c9d65890.json and https://artists.proofprofile.net/proofs/artist/1120ce51-eb55-490e-b098-3488c9d65890.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 0x09f601bae5cf496022cc05c9aa7984956f46f898a5e595d1b21f78396f4a69a2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CAF5R2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485c79fbbcacc804ba803b85c827ebc88bddb20479f577d12a571928d4eae760. 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/US25X2302147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cba0a497b6a5de399cc490424869b3908be101223f02ffcb06c0c56b787136. 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/TCACU1600483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cf0b77623432805fe9396f8d91b6509b3336491d1ea4cdb3f9321287ce86be. 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/CA6D22400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796e3690845024cc06fcd95c9b36ddd0e246dedff3c35192086f8d08d1da9d7b. 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/CAF5R1800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdede11ed0923dfd024ad6a2c8419e6e6b35cf7a5ad2f3f6fe48e693ce2f7a9c9. 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/GBWUL2484209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9187d3b3625b6a6d849bc9161f990294cb862771d42148983c85824a4be8ba51. 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/CAF5R1800139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5964a09321e230ed24de0a06bd0f654477fd64ec38ced4783caa14ac5dfcc0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBWUL2485677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f601bae5cf496022cc05c9aa7984956f46f898a5e595d1b21f78396f4a69a2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CAF5R2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504fb98f9b2e69dcedb942eb2f194944e007541745406d10dcd43cece5533a76. 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/USA2P2308776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f627e44861462e5de846f4e1ead8aa9f4629202b646e8ef05ba382c198390a. 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/CA6E82101029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b96c711654d35a7e60321f520b4d624a95b0c12be2c6818ac11205a1587358. 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/CA6E82101023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b64ea0a8e8b36b22d38287eb9d75497a23d753d16fa2b239d504d069a416bcc. 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/CA6E82000155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94dce3f65bb93ff36a1a71d48a8cc33c47a1681e1ddcd2242cd0ecc8cfd4ff00. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA6E82000157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d5ffadd74f7bc9416d77e02e878f9786c8cb946784c5cd31fb0ec0532a4d16. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/CAF5R1800136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e545cbcc34cbbd7603895af44a695c13872690b98e27010fc0deebb125d221. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CA6E82000153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ff7cb92f54175bd6ec01f576588c625aa0a4dc344e024f257b5fb10b19016f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CA6E82101027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cf027b50fd47a4255a078174a327cb7271efb08f44017ee174f1ff395a9588. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CA6E82000158.