Allen Smith may refer to: Allen Smith Jr. (1810–1890), American portrait painter E. Allen Smith, Auditor General of Ceylon, 1946–1953 H. Allen Smith (1907–1976), American journalist, humorist and
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 0x48461468c0b8218f9f0061913c9dda0c7a65686ece65612dabd9026063923209. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad367e76-a206-40af-9e41-33575e10b161.json and https://artists.proofprofile.net/proofs/artist/ad367e76-a206-40af-9e41-33575e10b161.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 0x7dbed9b56c73275e19c66498e6c2f166e94efe16d83708cfbeb8825843169aa9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USJ3V2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf99752efee4b2b1a1112b69a10403ab9797817e12d3fc88217cc9ce6727787. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USJ3V2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f06c7227ca7be0a23501fbbd943a5cb090bfd7e0113836e48d5d57eb99444ef. 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/USJ3V2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90496538a5bb05414e5e2c853aad9dece62911bbdd6052b85ec31e7566c74e0e. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/USJ3V2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5301b81172eee370f3b8e577901d39e15b57970bdbc3c8dd64035470c3e922a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USJ3V2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f6ebf48882f07aa958a4f34857637fec98499eb504d3f9e6298a07033dd697. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USJ3V2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6b2118c054e2a6c6ebf114f326ef6adb9e1469a20bb92ef0fb57e748bb1001. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USJ3V2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d9d138e80794059797bb6cf1e3f215caf8ff9d2428e21e11238b57c8d421fc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USJ3V2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f172607ca33f29253cd8ac5f1246c9fd3a85b47f1951fd090d5730d183853d. 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/USJ3V2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fde1c3a59ef7b1231cc39ff759960a316e5e84cf0daddb180fcc62bea9ba9a6. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USJ3V2100013.