OpenTechnical

OT-2026-000057931

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, single stage ejector, supply line pressure sensor, pulsed 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-2026-000057931) never changes.

Identity and time

Publication numberOT-2026-000057931 · never reused
Internal UUID01a0ae88-6ed9-7b61-a033-6c3a8606804f · 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-2026-000057931
StatusPUBLIC

Content hashes

Canonical text246f2954eb1dcfcba21a88a0b9dbdaa86f9a50a428687f0c0777e05722b6dbef
Markdownded4b847191d32d06afde24a67a10edaecd9d0aa37b0386c015eca98d086febe
PDF
Publication page9f4c182446cb70177e809b3f6bc6cc4c245e71b21821de551e8739414e5f4828
Manifest3b4c0d6b4f27f9538bfb45e5949648a6b8a087063d694a35ad4cffd4a08fe932

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
SignatureCTUFB01toPfWZXDBhDC71Nle3/Zc4rFlni/GZaB15mirrl9F5IH4BKJKc7lb2J9a/geGxceO8ny4nC3BzZn+DA==
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

2026-09-17T10:47:32.739543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057931
observed 9f4c182446cb70177e809b3f6bc6cc4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:32.721357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057931/manifest.json
observed 3b4c0d6b4f27f9538bfb45e5949648a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:32.701166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057931/publication.md
observed ded4b847191d32d06afde24a67a10eda...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:32.682484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057931/publication.txt
observed 246f2954eb1dcfcba21a88a0b9dbdaa8...
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.