Alexa Tarantino is an American jazz saxophonist, woodwind doubler, composer, and educator. Early life and education Alexa Tarantino was born in West Hartford, Connecticut, United States. She obtain
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 0xfed888f1f6a041fa62da5c366ade70b3a33c16a2ff27c288405405ac522f02b9. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9693a4fa-f743-4e77-b680-6cb05450e124.json and https://artists.proofprofile.net/proofs/artist/9693a4fa-f743-4e77-b680-6cb05450e124.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 0x00352bb725dc0fcbb414b22d97725ade2a927b4a4905a96d8a0864a77b7af8c4. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QM9Z92100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28911e8d905e5f9f79f38c42b3dd88cd9cef74468cd9a9146dbdb576db28fa9. 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/QM9Z92100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f72a106b2a6e4ebbb1f2399afa9448d5d149d9bfe0fd2714e9e601d33f7b15a. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/QM9Z92100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886d923161441310893ecc293f996afeffbc71ae21106e92b36a27cbca152347. 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/QM9Z92100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b59ac10d9318b19d5004ef5a1d2969bc17e27b44cae776d1ea51873f9393b3a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM9Z92100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36049602c7af3abb510535819210fe34fce2ceddce3db1dabf5c530a9b933059. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QM9Z92100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547325828cf4b2e49456f5670751123083aef69fc3d7961505ac12f2b38fa692. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM9Z92100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d36c94e2b6c0d75a404b8904e9b166cdc22b73947e603c50fc01e9d81860128. 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/QM9Z92100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35e965b5a6ae6f701792a44b3d6653d870361a4f8d40dcbf461054ddb6cc4e8. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QM9Z92100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3af592262a9c2ab8a23879c299b117369c45048765caf6210d8c10f279e3a0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM9Z92100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229480b68df4b88c9d145c7ea368f2b4f2c99398737e188bbb43acd0d665a5e0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM9Z92100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0618d8d3411f695266659d6edcb637ea2c1842bb6ab5948dbd98c69b5e72aa5. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QM9Z92100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e97f20e08126966a9f77fb0dbb080bb13a2c07c1e60641485f6c97f8dc00174. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QM9Z92000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5236f2a74ef57212cc3d32fe2ceba1f0bdcbfa415587cddc1ae65903aabf4d9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM9Z92000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f0083c52e6e22187e3949efda08e9db48c69910dfb9470d5f3922491611363. 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/QM9Z92000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5398b950413e26813bb9f35d7f34101187c8cff12d47d86e7871a1fbacff6c2a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM9Z92000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fbfa2636fec92ba9ca87b697e586a1dd9e61ae23e26823dc7b79d430deaafe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM9Z92000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67e6381a666b053d63214dbc634899457c1e11cc2d7311f6cfff6054144d894. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM9Z92000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb096d5115872b8a499d4bccc55b91cb202e843b0dbf22cfdc90bc3791f2729c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM9Z92000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90da5da8df938c8939dcf309a1c58c2cd9cc954a2d3decb1e2b3f000f7712c3. 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/QM9Z92000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764d03c5ccdcfa90db39af447302b8d07a705cfcf6ceb51e5bba3abecfc4c495. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QM9Z92000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee2810bb6d709e7d6495f4f9a036742762e558151f3082ed2243358ceaaf538. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM9Z91900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf02208c0d51aa4790808016ef760a406dfd1bbfa9ed94c1c42813b5fedf8c2. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QM9Z91900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6d39e63a67e48a9cb6085cb010227b7c49428527859bf809e697a889966516. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QM9Z91900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d27ce3796dc7996c29ee390eaed2b3ac910507fe9fd18816137ed798567bbb7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM9Z91900055.