OpenTechnical

OT-2026-000084507

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, sustained blow-off before set-down, on a tool changer

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-2026-000084507) never changes.

Identity and time

Publication numberOT-2026-000084507 · never reused
Internal UUID01a0ae98-e25a-73a7-ae01-df20bfcbb3bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:50.163111Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084507
StatusPUBLIC

Content hashes

Canonical textcba68aca6239955f13f16522888afefd0ed74846350f99dd7825d05da9e4b9ad
Markdown31c40ee111dd38e33bc9a5efd817fdd1795b147550db7ecab21b8e9cee66b62b
PDF
Publication page7a2399d73ecbe6f62a2df74b474a43354e849b5b4f7d2c37e374162d360fda4e
Manifest5f5cd73fdc0723d3d0ee22f744abbd36eb0ff0dd28122dfd31e62b45445c1278

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
SignaturepnL7SzprxFnRPr5jNWYHo3nnAKrBilDmMa10Qcgum9R2io35oZ+hCXHDLznc4iBwyX7elTgGlCOTOtNyfFQfBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:55:23.017176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084507
observed 7a2399d73ecbe6f62a2df74b474a4335...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:23.000319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084507/manifest.json
observed 5f5cd73fdc0723d3d0ee22f744abbd36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:22.983179ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084507/publication.md
observed 31c40ee111dd38e33bc9a5efd817fdd1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:22.965305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084507/publication.txt
observed cba68aca6239955f13f16522888afefd...
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.