Andrey Leonidovich Shirman (; born 23 May 1982), known professionally as DJ Smash, is a Russian DJ in house music and electronic music, and also a music producer. As of 2022, he is one of the most pop
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 0xd59860af63842f56c51f6b50b5a2f0d59f9ece6cd2c3476f6a7e3b1793914d6b. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b320ea83-3d64-43d5-8368-ec7cbcae976b.json and https://artists.proofprofile.net/proofs/artist/b320ea83-3d64-43d5-8368-ec7cbcae976b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Turntables on the Hudson: 10 Year Anniversary
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 0x20bbd743778c87662b2cd6a56b8e7de28107dffb7fbe9a9fbbbdce55fb1bb7f7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCCW0810136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29915d37a4efb58b3242c8c323e2d13af91128893505b12a8289899cc7568cd. 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/DEN061101861.
Signed, Sealed, Delivered (I'm Yours) - DJ Smash Essential Funk Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1e59692c591d206c64eca629d284b0b4a405e2c084e3c7974bde73a72ff8a2. 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/USMO10500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1e59692c591d206c64eca629d284b0b4a405e2c084e3c7974bde73a72ff8a2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USMO10500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1e59692c591d206c64eca629d284b0b4a405e2c084e3c7974bde73a72ff8a2. 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/USMO10500189.
Margarita - DJ Antoine vs Mad Mark Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35990e191382b2396c767fc3613c743bfedcf5711a08bbd7631dcf48aed0134a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:39:41Z), 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/DEN061101473.
The New Groove: The Blue Note Remix Project Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ca94e0cd37d977306a6bd53a6bd3e24abed4581b6e431d0afb1e0ef440158a. 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/USBN29600615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5825d514da3849d041439c170113b8f297123ca9ec6428038ba61a8331652c3f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USCCW1310322.
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