Abigail Smith is a professor in marine sciences at Otago University in Dunedin. Smith grew up in Maine and did her undergraduate studies at Colby College and Massachusetts Institute of Technology bef
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 0x7bd613d1085ae0d6f4ff80fe464330d7c1a11613c625d322d54683e1c73993a8. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45b39f5e-2264-4d38-92e3-41cda6238503.json and https://artists.proofprofile.net/proofs/artist/45b39f5e-2264-4d38-92e3-41cda6238503.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'll Tell These Stories to My Kids (Live)
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 0x0849e63719699dede633788c63a7ec24282e669857742dd2579fac90ae3d608e. 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/QZMEN2166116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bb50c1784e88fb5fe1373c2c5d091c195f76b42fe32d3074b839365755ffa5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHN51942810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb58d0a15f7243e5a1b13e6c1bf00f9687e721ea51a7db666e35c64f70119f49. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHN51942812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770720e9a0e37e6c409d8d0546a8820cfacdc20fc52d5319b32288eeea141bbb. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZHN51942813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8305d983eaf6ffdd9bb1c0bec9621b1cde393348b64a6b234e27a87a5b042dc. 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/USDY41773830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25eeeb1778e88ea17e4e0b9e77ecf633305fe8f4542fed94d495d7be789d81c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USDY41773831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ce9f81553a36fec110f733ea610ab3698e1fc77b88dbbc482c7619c1419e58. 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/USDY41773835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0849e63719699dede633788c63a7ec24282e669857742dd2579fac90ae3d608e. 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/QZMEN2166116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dacde6dc0a72bcb50528febcba0279c2c6c3f841fc1eb5efe2d9283dd05673. 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/QZDA42139327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86d8f1ab1950be25381c13c603962f065e805c9879941b9b32f2f95d2553693. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/SE5BU1875551.