OpenTechnical

OT-2026-000021877

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, sustained blow-off before set-down

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-2026-000021877) never changes.

Identity and time

Publication numberOT-2026-000021877 · never reused
Internal UUID01a0ae6f-bb5b-72e3-8c7e-17b057c13d9a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021877
StatusPUBLIC

Content hashes

Canonical text230a71fded8a16e628fc60c86dfb77f161f2dc507da81bc5da8633af450be21c
Markdown4b1c98022b47f795ae445401327e713a1a49f0cdccbc025c9dc5e9b6db33c017
PDF
Publication paged3e1e2ce1fbe1301030bd9cf5a0259244627717bcd17ebf87754f5df76df9f63
Manifestebf5731c90b6fb5d46916a593df899dd4e6d0df03def5a0f3aa43ee4c296ba73

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
SignatureaXdGnPUkUCOKkPf+KHjkiNve0LZrlKL6uC/CP57xrdxL8Vt2sbfyGi7zLLszxJpetJX4uFlpYUnjMsOPlyhkBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:54:03.175985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021877
observed d3e1e2ce1fbe1301030bd9cf5a025924...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:03.159270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021877/manifest.json
observed ebf5731c90b6fb5d46916a593df899dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:03.120223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021877/publication.md
observed 4b1c98022b47f795ae445401327e713a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:03.090933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021877/publication.txt
observed 230a71fded8a16e628fc60c86dfb77f1...
fetched by instance-3.rotem.ai from 34.69.0.72, 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

Custody packagePending Custody packages are produced weekly.