OpenTechnical

OT-2026-000073976

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, 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-2026-000073976) never changes.

Identity and time

Publication numberOT-2026-000073976 · never reused
Internal UUID01a0ae93-2b8e-72ae-be36-3056fdad89c2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073976
StatusPUBLIC

Content hashes

Canonical text900cabd8d23e2ed4cde3208045cc74e6db05252a777efd3bf221edd895bd253f
Markdown4ac33601e96ee7dc8928112b00f6ff2f335bef701aeeed8a5dab79848c38e414
PDF
Publication pagef578acfddda5d60a212102f583ca568a2edf51fd39049835ede7b8c5ebcc895b
Manifest33985dd6dfe6f56b049302e8c8d5a06e1a03f8328fa8e29e1f4ae7c651cf62f2

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
Signature1DFVL4Mzk2rOgnBIZzMajAmniWdjcDT4UHHucrYMraulWE0M3H9MSG5/w3YzTAEtHzPojON2nPEGSn7L1xVABQ==
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

2026-09-17T10:20:16.268108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073976
observed f578acfddda5d60a212102f583ca568a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:16.249349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073976/manifest.json
observed 33985dd6dfe6f56b049302e8c8d5a06e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:16.231256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073976/publication.md
observed 4ac33601e96ee7dc8928112b00f6ff2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:16.212114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073976/publication.txt
observed 900cabd8d23e2ed4cde3208045cc74e6...
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.