Anthony Depula (June 28, 1966 – April 4, 2009), known professionally as Tony D, was an American hip hop artist from Imperial Valley, California. Career Although he was an MC and a DJ, he was most fam
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 0xaad0471d476978d2a4615fc66dc587dac01f3acfb75fccefdb2ac9669b6e4650. 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/b69b3454-5f6f-4aff-9413-75615942c98c.json and https://artists.proofprofile.net/proofs/artist/b69b3454-5f6f-4aff-9413-75615942c98c.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 0xa01f9f04477decbd5a28806fe87e4b0a62e1842e51bf48d492745294ca4da0f7. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/DEZ470901165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f883f530cb6eeb5de7ebf1a67ce7c2dea217eb553f36522d35c90cc68fabf20. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DEZ470901188.
Knochen gebrochen (feat. Sido, B-Tight & Kitty Kat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9829fcdb637dfc923cc518b43d0a644253382943d07a589b972874e60b5a35e0. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEZ470700630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c40d4de954f25509810d1f42f83c3c32ec0d3e624a1e5864cbddd713bdf438. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEZ470500327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f429f1165f162bdcda991b93b82805eec647c7ef2bffd23acb3170db5b47d8f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEZ470500332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e147e89cf27f5281a34d2b7ad3df562e04f68f7f8f1bda34b5c3da759efb84. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/DEZ470801123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c69f3da148ca20fee36ca19c6c8d0b6625a93f21caa321aa3c1cd7a2fcc95a1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DEZ470801068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5a7e6b555c13de8716271e9e0a0192328297c5344603208ddff2e62847026f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEZ470801144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e8ddaa3f66c8b4e91c1f3068ada2539a389f4c6c8d4a545c810c22ce69fe3a. 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/DEZ470700612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2befabf88ef9411ede5dd3419f594e4b88a616f33598725ae887ce8208b9d1b. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/DEZ470700604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dd4696cc1cce57b8a90ca7ee1743e03b69c489866812182696ee4e78373d07. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DECE72006596.
...And The Beat Goes On! (20 Years Of Hardcore Expanded Edition / Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd434e8da2a6e03328082d6cfd61f19a6b9717d96155e6ddd2a2d5c5c2d9dd91e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEN061300440.
Jumping All over the World - Whatever You Want
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ac70cd71b0a945cb8f10230af6e293affd346457e6400293ac5f7080c33459. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DEN060801016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda448f514f36489df8b68443c8ee1b36ddf3e9d811b4a65dd342532d0fa0b880. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM71101258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2e3dbe613b4a83d0c48841967c3f763d057cd923e3f11300e29cf4a0133d23. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEZC62338546.
Jeder kriegt, was er verdient (feat. Tony D)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aaacf6bb8f59c439e78c20a4717d9c749356b58ba28140e5429a3d60bca5843. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEZ470800830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdc2e363c3a7a6dcaa3bf7115eebd144f5781fdde90da9975386633cc2f9a0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEZ470800844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f458962a4cf61889ba2628316a0e5cf556bd0989d6a8fcf19fbf857edc64f1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEZ470600477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa147d9cee78ae785cea223b2e4f0e40d0b7ad8ab3ea251c210d8281c4e2456b0. 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/DEUM71103821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e0207a4bab5dd2a47e923bcbccf5c1a0fe5d14b504545418889bf1d9ebd9eb. 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/DECG30900132.
Nick bis dein Genick bricht (feat. Tony D)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386d1861d1f082e583e53ac944c7530cd77630bfb800a7ea82edb75c1f8e2f99. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZ470600401.
Willkommen in Berlin (feat. Sido, B-Tight, G-Hot, Tony D, Harris, Shizoe, MC Bogy, Frauenarzt, Megaloh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2887558b4c534bbf1bcf71659f38bbcd61b83ffec66bc4cda0af5f00a9e9d051. 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/DEZ470500302.