The Devotchkas are a four-piece American street punk band from New York City. Their name was derived from the popular film and novel A Clockwork Orange. Devotchka in Nadsat means "girl", which is itse
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 0xa8e111a088c113baa34d2f03c72422927d6740c8fa960e6e9ffa89b177bcc23b. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b89fd361-b096-40a3-8439-9279a91028c0.json and https://artists.proofprofile.net/proofs/artist/b89fd361-b096-40a3-8439-9279a91028c0.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 0xc49cc37b583b76117d5fd39f089080bdf3caa62cccce44179a958a825698b7eb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USTC10733603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fb927f4e78ed4f59eb313c78439e3096ad328948a4c025565f9df51b0a66c3. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USTC10733606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5b986b49ea6c44e1fc5e1f0ce98be873cdbee9bad7937d685a01a327760247. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USTC10733608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a8dba0a2e02721a0f214dff92b9dda3b510303dc5369c374336c44b429fead. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USTC10733610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb9a6f31fb2439ad293f7e27b0d917a5a5e67adcd4f8f4f5a12c92872d7c1e5. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/USTC10733611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bbb4c5d6c129241717a9a9b512305aaeda286d6b90420074a5856b590d8a83. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USTC10733613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17b4c1d3fda2893119b1c41cc6c8d9d6deef039c8e7182072c2e73484844eac. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USTC10733554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4985ae3f8b93a6efe5b2938e63a6aa1d97a1c902bd977898c95673113234a246. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USTC10733559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95746d29abdc8a937c4e4bcd8bdab35c555504bf6a4c129003d85337c74842eb. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USTC10733564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1f7b28b54553ab1fbe37525e0560c75af7953b05673a9f5cb1dd301355b62d. 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/TCAHR2309692.