Nina Maria Nastasia ( ; born May 13, 1966) is an American folk singer-songwriter. A native of Los Angeles, she first came to prominence in New York City in 2000 after Radio 1 disc jockey John Peel beg
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 0x57a8f2503bef4128c502a248eabd3d9db1465a9d964a91415a00c1cd535c24e5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7f1ac07-ced3-48b3-a039-106e522340dc.json and https://artists.proofprofile.net/proofs/artist/a7f1ac07-ced3-48b3-a039-106e522340dc.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 0xf4124bec1b43edcbc2b76000a66735c68e61b6a1524c2dcb92811a69cf56f543. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USTG30424601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874a78787a677519f89dc05451c8dcb70af4c45882bab9d00238776567655736. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USTG30424602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c3e8462e8f0786bab31775e6b4db27f4315d253248076f5e377dd21bbb1299. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USTG30424603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4a47252c61fd29b7544048a0ba740875e7132275e9a7354db4af7b9e8f9d9c. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/USTG30424606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db93b0442eb5bc5bf8ffdf8e04ad421d497ef285bfadf6d1df802923ec76dd3. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/USTG30424607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eee3bcac77f4094910f58e16fb00985ca84fad341bc3206999f54cfa847783. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USTG30424611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256481f4e139e5a78affc9e82b874c4ae53edb72a1ff3952118847af74dade63. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USTG30223103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e34e45059b82a40de5714c06ef88d23f206c5bd1c7ec275d7206082d778ebee. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/USTG30223108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb23732c1c107165b1bea8bddc416387604bc098607c264ad0a2e15297655dcc. 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/GBDCA0700873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fdb2c468d0e926a69301e84e4b4174b849d8364c0f2837b4c3160cf7290153. 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/GBDCA0700875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a8165958354e0c08e7a882721cae1c7b09406d40d76bea7c282763409f61d1. 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/GBDCA0700877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d61223f8b86cee5fe0ceeda9d3583823457af1877499ddf29ef506861da94ef. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBDCA0700876.
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 0x746ab934b05ffa059103649458f4b869be677b41d8e19405705aec2da4db48bc. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBDCA0700868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f64f3805dd7732facd1f8b9006415d3b3fba07c588f275519a0acde2d8750aa. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBDCA0700869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0807266fb890c268fed3b3c5c58adc788fb503d3fa0742b3672e08c136598423. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBDCA0700870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536b1f68c28ae8f4fd7ee97c0f3823e35e4c9dc064934bda8c484bd491de0836. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GBDCA0700871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f1389eb8d9f7acf2ba23020e19b09d8c346642b7d795a0d543f5963f38252c. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/GBDCA0700872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b97e4028f33419f049a146096decdd88c99eca571fca327eb27ba4302ed8baf. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBDCA0700874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c37e8f2a4ebed47dc0d357e332c33940efe9157ce73a799762bd6643ec0152. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/GBDCA0901362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8add1693669519af7bee96559e49d4f40e793f2d54a5a7021ee00797de4ad23c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USY6C2239802.