Tasha is a primarily English-language feminine given name of Slavic origin, a shortening of Natasha, which means 'Christmas Day'. Notable people with the given name include: Tasha Alexander (born 196
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 0x61e339312d45e38573f80f5ee7b83efb98952e411b78657b8e6e76268c501c0f. 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/1d2b08e0-abdb-49b4-99c0-97bdc32aaac5.json and https://artists.proofprofile.net/proofs/artist/1d2b08e0-abdb-49b4-99c0-97bdc32aaac5.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 0x33987a031fede12136c7b84a8ef3632141ae98742520b746c8968442131684af. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QMFD41800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5685f842f8fb7af4c5d63d18068cc177922ceb596d887bca593e2ef159fd022c. 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/QMFD41800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d570c2e67cdb4b9856bd6dc4a9a321b423d6ff2effa3dbe51a9fc743286f36. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMFD41800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f42fb0a8d46f75b96ba46dec5d030335f5775f757a37b6779997ecff228bd5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QMFD41800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4fa2622c381a688d8320e60206da89e07077b0442db5a56d24a8a8a3938fc8. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QMFD42100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cb497b5ade3b273acee1a4bda9c7383a98fc6ef3fcc205e9a6252b10555cb3. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QMFD42100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d96c763150ea52c23a8f1de42335703a3c0a340c3da78a2b6f4309a32731a7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMFD42100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6276dbd13d4acb4a2db649a24881fad61d5fd811882beb6d4f1448ab004e04a0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QMFD42100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e58575bc98b77b70f3d48220b5f678580eeb70cdc686c32c359cc9730799a91. 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/QM6YT2406405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eb66a7757e6f27988afd6cf59ece9cf8a3a5d0371b62e3021bd266bd7027a9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QM6YT2406402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bfe284a86ccfe708da67905fe2a67e1e320500e4fe13530286ed816466a2bf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6YT2406401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eb66a7757e6f27988afd6cf59ece9cf8a3a5d0371b62e3021bd266bd7027a9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QM6YT2406402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c74ec6f64022dff942f48c614ef64f93a2df96cca202d1e754b6099d78d321. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6YT2406403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0cf2dcb766218d2e62122f18df1f6e0656bb64a02274445d07d37edadca993. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QM6YT2406404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e58575bc98b77b70f3d48220b5f678580eeb70cdc686c32c359cc9730799a91. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM6YT2406405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf190bd8979bf7689ab7b4b8dd42dd6e0feb18e43dcaab966c568a87aeab29dcc. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QM6YT2406406.