OpenTechnical

OT-2026-000003074

Publication integrity record

Gripper for a surface mounting apparatus

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000003074) never changes.

Identity and time

Publication numberOT-2026-000003074 · never reused
Internal UUID01a0a686-359d-7215-9e47-8991f47a3201 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:23:28.542144Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003074
StatusPUBLIC

Content hashes

Canonical text7a57f273e2a5fa9749b44400a1d96ce94f2193e7f0b408fb96a5389b5486c978
Markdown203875e611bb58edbdaaaaaa4748631e5a95ee7a6b4898251163eb75fcc1f316
PDF
Publication page27b2f37729d2a930bccc8a237d27025a9bf8e5cbec5dfcb1bacfc1846f4ae007
Manifestbf1617505f7866428caeca96d8ccdf55592cb4a6afe2b098de6935215324bbe9

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signature3wJfdriKsv0I/CJWjJp9X6xo0XkP1xdkF8b+z9Zxol8QOjIbupOyUuS5/kkAT8Ii6ThawaTHkVEdb91fOuUdBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-10-29T04:42:04.085485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003074
observed 27b2f37729d2a930bccc8a237d27025a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T04:42:04.026850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003074/manifest.json
observed bf1617505f7866428caeca96d8ccdf55...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T04:42:03.969767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003074/publication.md
observed 203875e611bb58edbdaaaaaa4748631e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T04:42:03.724247ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003074/publication.txt
observed 7a57f273e2a5fa9749b44400a1d96ce9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:43:19.209826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003074
observed 27b2f37729d2a930bccc8a237d27025a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:43:18.937052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003074/manifest.json
observed bf1617505f7866428caeca96d8ccdf55...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:43:18.549836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003074/publication.md
observed 203875e611bb58edbdaaaaaa4748631e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:43:18.204942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003074/publication.txt
observed 7a57f273e2a5fa9749b44400a1d96ce9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent