OpenTechnical

OT-2026-000006218

Publication integrity record

Vacuum cup gripper, per zone isolation, plant vacuum fed, vented before set down, polyurethane cups

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-2026-000006218) never changes.

Identity and time

Publication numberOT-2026-000006218 · never reused
Internal UUID01a0a953-5153-739c-97a3-9596a7d9699b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:26:44.949765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006218
StatusPUBLIC

Content hashes

Canonical textf17bf6c78e2dcd18e41ef7616397d15af178be20d520bd17f5217ab3e9267e75
Markdown67476edc01cac0c8f3554ce233296a4bb099621b70d4f1ad2150f0f6dc7ee864
PDF
Publication page3aded8d166c79db3598ecdd39fd3ff1075d7f4265041eb4a2ea86b5b0f041c70
Manifestd505e9daaa35af8fa070097b4d825f6d10d6f2a3684dafd69291b7fd487ababd

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
SignatureY53Nrm1lnwhv6ybC9tojopYkj6R/jkX8a08EEt7g2s355iIw4+NBeyt6mYTW3JsaV+lpj9+ThDONtuBq28s+DA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:13.747495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006218
observed 3aded8d166c79db3598ecdd39fd3ff10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:13.731823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006218/manifest.json
observed d505e9daaa35af8fa070097b4d825f6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:13.715954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006218/publication.md
observed 67476edc01cac0c8f3554ce233296a4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:13.698227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006218/publication.txt
observed f17bf6c78e2dcd18e41ef7616397d15a...
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.