OpenTechnical

OT-2026-000057885

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, supply line pressure sensor, vented 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-2026-000057885) never changes.

Identity and time

Publication numberOT-2026-000057885 · never reused
Internal UUID01a0ae88-6ed8-72d4-beab-3b5e33509684 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057885
StatusPUBLIC

Content hashes

Canonical text2a4c35b6462a7f1fe2995b356acb54734671400a11ab4d2bd14c8f7f04ecface
Markdown768232dd240053c47ec5e7354c5c795cea894dedf9460c543909e520e39d57d1
PDF
Publication page1946b007ec803520326fb1de9f17b21a5a361e70c66e75540a07973ea931e196
Manifestf97afd5012d271b7132683407e4fbe4cbb75cb81c3d0c89d55cf0f340d8630ee

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
Signature5Ik0HoKyOThAN+RRIe5ZJsEcuvLYsgdPOG4vYS5hC07t4ni7eswUWvzYJLKhA8MK+v7+ZtDwyrpA29MNF2UnBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:47:28.489676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057885
observed 1946b007ec803520326fb1de9f17b21a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.471933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057885/manifest.json
observed f97afd5012d271b7132683407e4fbe4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.454235ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057885/publication.md
observed 768232dd240053c47ec5e7354c5c795c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.435045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057885/publication.txt
observed 2a4c35b6462a7f1fe2995b356acb5473...
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.