In Russian, Masha () is a diminutive of Maria. Also as in Ukrainian is a diminutive of Mariia or Mariya. It has been used as a nickname or as a pet name for women named Maria or Marie. An alternative
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 0x8a0e51ed621734a64c3bb5c98af3090486e23afc95488a5b330a0c8319d13c5e. 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/c37eb3c7-a554-4904-9b9a-8474558fa7cd.json and https://artists.proofprofile.net/proofs/artist/c37eb3c7-a554-4904-9b9a-8474558fa7cd.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 0x3b2413b9dbe5683d6c80659876f30c76ee0ffc61c57f1de28e0910ae887db23e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZWDE2430795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053a37064660afe8ee482142ad853b32293773161bc2f5586f4c41d7c331f664. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZSYP2514966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab952b0c3267aabbab2eb34831a1d28d2d17ce49c22b30403557b420671ba2f. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:44:03Z), 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/GBWUL2548192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0805a5c2d296b3174e8d1e8ac465ca370ffe47dad7e7b56e3aa6547d83f118ef. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZWDE2536776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dab6d93eba107bb5acf0a4518da825a6b7a2313e4501e7af70047a7172edfde. 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/QZTLA2466710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ab9370ecec034a93531d1b08d96609a444988c81071d439049b127e4dd57ae. 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/QZS7J2490192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba17e96f850fca7e512a868cae278f6766f2765593497011227776e798bf17ee. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZQAY2491586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0112bafb058996fd560e1fb15476f5c2634612f01d36bbe0717404661ade22. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:17:49Z), 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/QZQAY2468620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6515d03eaf7c6e17c88a3cc72673d09a05ad8c1172d24c8892698dccf88b5700. 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/NL8RL2507001.