OpenTechnical

OT-2026-000078572

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, vented after 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-2026-000078572) never changes.

Identity and time

Publication numberOT-2026-000078572 · never reused
Internal UUID01a0ae95-7c29-7131-ad65-d8443370d636 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078572
StatusPUBLIC

Content hashes

Canonical textf4dc92b19bc04b0506c39823f0f271f154e19f30a25bb3246bdf8c9c6c0f0a05
Markdown5af768638b6186aa58adce3e4514ec3ae3d53fb4c9b72ae9e94579d27db77b75
PDF
Publication page0507cde8476bee99b6a9146c02ebaddd1d422ec3c43fd6199ef01e22d18217ba
Manifestc47df3dcc7f4dfe2fe07c55c8d6f959540433fedb93cb6e5b18258977d958e13

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
SignatureabjzNFP6IasiV7ThveTdrm8D0S3g2+SmipIhiqtBNhkf2SWvtLhhK7LzGv0uPCIPyasR9v3dQoEpGxmcT8KyDg==
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

2026-09-17T10:06:35.829647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078572
observed 0507cde8476bee99b6a9146c02ebaddd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:35.808877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078572/manifest.json
observed c47df3dcc7f4dfe2fe07c55c8d6f9595...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:35.787937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078572/publication.md
observed 5af768638b6186aa58adce3e4514ec3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:35.765595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078572/publication.txt
observed f4dc92b19bc04b0506c39823f0f271f1...
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.