Alexander Giannascoli (born February 3, 1993 as Sandy Giannascoli), better known by his stage names Alex G or, formerly, (Sandy) Alex G, is an American musician, producer, and singer-songwriter. Durin
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 0x02a9c55a56ee6abafaa189e49b59e2631b506374e16624f29b4bec3c357ee93f. 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/0659f04a-702e-49ed-a163-973f48b370ab.json and https://artists.proofprofile.net/proofs/artist/0659f04a-702e-49ed-a163-973f48b370ab.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 0xb1df92e197ced7d0adf7645a51c43751eddcb906b856d8385691de7846e29bd2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMF921850139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1e700bc90dc6cf91ddb4eece4eed8ab401a07a4c1dcca747e16c2461b8c85e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD11366064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8f4b27ea7ce48fcc4d6fbe8e39eca906100ad11c534354a44c15210715c0ec. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBDMT1300910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043d6a00468da5b7fe384b0b899cce889dc85ae27f319a200d980a28af3a6bb7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBDMT1600164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6fac35cfcb19c73f3a0248250cb644eb421191a39388e02cced5001be06eb1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBDMT1400357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ad215777bdd5b63bd925dba998af5a698d469f173ad2f92dc54e90ec3cc694. 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/GBDMT1600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3092607ce51c021fc744600c3b75010e05f9cc10c525cbd37487804ff34c958e. 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/GBDMT1500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2533d3f513fa6400f8b384481f3100a77049c3fc1b5d880aa7e36b403d89283. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBDMT1500431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b57aa6d8b65676ebdcd8a9d2d173896190c70fa83b04110efcda7deeb34333. 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/USWD11676082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c6210b6a10314beec4a24424a6e36d09145c4af48dbebdf7119056f99f8596. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBDMT1100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825a46fae9949213b73d9a872ed94ea38abfe1b03cca1a978b2c033dc76142c9. 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/GBDMT1100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3587f7043659775a12f7e38db2b0137cefbb76fa67209a3c1dcc316478c0d92a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TCABC1140082.