OpenTechnical

OT-2026-000049691

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, pressure sensor per zone, 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-2026-000049691) never changes.

Identity and time

Publication numberOT-2026-000049691 · never reused
Internal UUID01a0ae81-8fee-79a5-88b6-616eca1f7fba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049691
StatusPUBLIC

Content hashes

Canonical text1a3b0d36e63adfb2fb30c64e3bccab32bbe3fffb106fe2cbaa4b3ce1500adb43
Markdown93ed161f4a9bd655cd7c5e6a7e5eff63c0b35875360c05fe4784cb8bede23486
PDF
Publication pagee6770d06efff558797e8f3ad732d844439671fa6bb4c499630a15290d25d49fa
Manifestdf4f46c0b0cc44db39991fd2b5944584cfb91b4b957bf0ac5cfb9ee591f7eb2c

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
SignatureDkBJmOz8519Lusq0gAFcqytyaltgJxXTfrGbliSbCTpJ0V56QeWx5yqPX1/jSvpy6TB4hV8JKnV1pNDgiv7cAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:02:42.133856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049691
observed e6770d06efff558797e8f3ad732d8444...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:42.117917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049691/manifest.json
observed df4f46c0b0cc44db39991fd2b5944584...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:42.099326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049691/publication.md
observed 93ed161f4a9bd655cd7c5e6a7e5eff63...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:42.082156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049691/publication.txt
observed 1a3b0d36e63adfb2fb30c64e3bccab32...
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.