OpenTechnical

OT-2026-000081025

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, sustained 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-2026-000081025) never changes.

Identity and time

Publication numberOT-2026-000081025 · never reused
Internal UUID01a0ae96-b976-7482-bf21-27dfa138b0dd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081025
StatusPUBLIC

Content hashes

Canonical text0a2f716cd551829140bbad0856b06055312f2201624339ce426d0bc064af525d
Markdownaaaa0c107c795fa95574f82b4f88d20f275306fe25e34d17db8b2daf2a035ed6
PDF
Publication page6c31b760d25f94e52552f88e611d34e48cfebdaa24ed2abb9ff8d5ef63f47000
Manifest8538783ba09c5610deafcbd8092ee528b3aa4e79de76ae465d9e6b6ff1d38537

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
Signature0INkp5chR+5XTL2qQXqO7DQZMelLJ8rkVFifG3YSWZ1fIww0eS7nvD95eeh8qiipxjIQRDC0S3XVhg2LiwgsBw==
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

2026-09-17T10:01:40.889564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081025
observed 6c31b760d25f94e52552f88e611d34e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:40.870872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081025/manifest.json
observed 8538783ba09c5610deafcbd8092ee528...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:40.852122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081025/publication.md
observed aaaa0c107c795fa95574f82b4f88d20f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:40.834074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081025/publication.txt
observed 0a2f716cd551829140bbad0856b06055...
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.