Dan Singer (born December 20, 1971), known professionally as Danny Diablo and Lord Ezec, is an American hardcore punk and hip hop vocalist based in New York City. He is currently a member of undergrou
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 0xfad48a4800488a22d59a73261c40edb4f4e8e760dc49174508fa9da178a4cd56. 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/80176473-840c-43a2-8b93-80133274d057.json and https://artists.proofprofile.net/proofs/artist/80176473-840c-43a2-8b93-80133274d057.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 0xf763b72d75c6d70abccf4e53e520f406b2dcee3c072bfa05ab2118d82051615c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USS1N0710105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0251b21012232d85894fe747b4b17dec7ecf1044ff0c0f87c2cfc6197dad940e. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:11:16Z), 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/DEBL60801304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc857cc705d5fd8c958ed218f1016172710367fc7cbd333dde99df422ce96c819. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHEL0903002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8e6c9f2fb91d24678805a1a3c69c5d113dde66758de563a3fc053e679b1304. 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/USHM82050259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6caea00c5494ddeec255c57cae93b7799a44e9b82c36ddc64f810ceb1429032. 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/USHM82050262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da36b59547c06393c2e68306313566d93cbb3e5cc977aee1ff7095b59cc6acc. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/USHM82050258.
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 0x040ef4a79e6855df69146d47ab513e4c73ffc9c82f51c043a1cfd8d99d683279. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USHM82050260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5709d2338d0d1fd057c4a05ce8829cd8b7974827cdb0d65c2c82a085e39b837b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USHM82050261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0692955e69a58d1b0a25a197dc67d2dc8ab6525c9860fb9f8224ffe88a7161. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USHM82050263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256fb2fa44e8283d3009d631d75bb848f53a8d37a0579a2823942eceb99004cd. 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/USHM82050267.
Jesus Was a Jew (Danny Diablo vs.Piss Mobb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b6d478a2fb8f48da53dcbbc8651fdee90c78736485e376365326345e048458. 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/QZQAY2471409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b6d478a2fb8f48da53dcbbc8651fdee90c78736485e376365326345e048458. 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/QZQAY2471409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f41ba8a4952395245445ed8439fd6b33182e1bafaf4d97d3cc436266257ad7. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/QZFYZ2026680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65c47b22ddd78e563e0f15f59bff48c1b000b7434c8db9f4bdf0b9895ccd542. 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/DEBL60810870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237629dbbdf3e3582bb50b5a0d0643fc7a3e503d135be3070a90f067d81342bc. 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/DEBL60810942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe629d2ef69136347b6d8ce60b4e41d5d6257b8fffa4e2374ad7efa9ab46ed419. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZQAY2375449.