Drew Smith can refer to:- Drew Smith (politician), Scottish politician Drew Smith (baseball) (born 1993), American MLB pitcher Drew Nellins Smith, American writer See also Andrew Smith (disambiguati
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 0xf90f7aaf88314e7a0df003060d280645c75c692d49d105dd89638576cabb070e. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc1ff4d7-3fa4-4b8e-841e-6f712e022e02.json and https://artists.proofprofile.net/proofs/artist/fc1ff4d7-3fa4-4b8e-841e-6f712e022e02.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 0xfc0ebd947e05235ee529506062a802fddb81ea131d7e5e16e44a1115b863b944. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/TCAIV2491427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00172847d348f16ff856da397c926ca9b22c633323d039debac6704a56b1759. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:53:11Z), 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/TCAJI2528132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28481dc6aec7a12ba96b0b349e7837627c1a46466b73447c9d8f416a3c377eb7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAJM2512595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0ebd947e05235ee529506062a802fddb81ea131d7e5e16e44a1115b863b944. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:48:53Z), 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/TCAIV2491427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c2adb7a81d42da39dbd8fe35e7936e677feab6c44047deb88bb682a6760509. 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/TCAJM2512610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f295b47752518b1ce7412a12a12aebaaedceeb1502d1b8730b6842b131ccda1. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:05:31Z), 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/TCAJM2512621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe299b55623d3246b0d7eca4d9efa259ae0eef9113114008470ebb6815b162e46. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:34:32Z), 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/TCAJF2500574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be3c63316e15a692b6342bb068aa94853f70874c70e36e618a2cab11a1706b7. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/TCAJM2513536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00172847d348f16ff856da397c926ca9b22c633323d039debac6704a56b1759. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T18:04:58Z), 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/TCAJI2528132.