OpenTechnical

OT-2026-000081791

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, 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-2026-000081791) never changes.

Identity and time

Publication numberOT-2026-000081791 · never reused
Internal UUID01a0ae97-0f74-7d6c-a190-fa19ba97891f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081791
StatusPUBLIC

Content hashes

Canonical text65d0b7128cc147c42660e49343162f8107b0e8d5994a21512f2c0fe8cc682a1b
Markdowne37053b677f294a750565891c850c13252dc6e34674a3110e00b3caae1d3fc48
PDF
Publication pagedbbe0542c41ef061cf93a1516f3cf92884b4eec16df0be07fd9b440c70790dc1
Manifesta1c9a889fefdbccf66b7a9d03bc145e05e83ed316949a632ac2de29fe8cbdde0

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
SignatureVhOh4GaZlc4lESpJQNsamNlJYoBHmzjgz64RPazu7AxN0sEFLb+EwPoti8eVComZGm/n2Ui49uPQmXxWVIuoBg==
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

2026-09-17T09:59:53.387950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081791
observed dbbe0542c41ef061cf93a1516f3cf928...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.370686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081791/manifest.json
observed a1c9a889fefdbccf66b7a9d03bc145e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.354107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081791/publication.md
observed e37053b677f294a750565891c850c132...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.335819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081791/publication.txt
observed 65d0b7128cc147c42660e49343162f81...
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.