OpenTechnical

OT-2026-000070750

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, 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-2026-000070750) never changes.

Identity and time

Publication numberOT-2026-000070750 · never reused
Internal UUID01a0ae91-8c2c-711c-9c50-c05f2982abf8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070750
StatusPUBLIC

Content hashes

Canonical text716cf0ec5e9371239bf0205ee6fe3de7db1e125a851b9ea4fc415364c596ffff
Markdown4b511bfeadb5137a5a7148e734a598e144e6553058e644787c6b23b434a1821d
PDF
Publication page6911c12e9db4506c601198f58c37c1886bf1541531475156f0b676093f521be5
Manifest892289c816cd4efb90fde32c6c01e0b29e61afa4ffb040c321cb9a9bfa477421

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
Signature/JCiPLuDk5Lu4/iDfEmJNIKoM9KttUkz8D0+GsZO0X2VgFpAA/rHjiz70Q8ogtLQ+TGObNSlgFm643JD+Bq5Bw==
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

2026-09-17T10:25:26.835373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070750
observed 6911c12e9db4506c601198f58c37c188...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:26.818380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070750/manifest.json
observed 892289c816cd4efb90fde32c6c01e0b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:26.799913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070750/publication.md
observed 4b511bfeadb5137a5a7148e734a598e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:26.782510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070750/publication.txt
observed 716cf0ec5e9371239bf0205ee6fe3de7...
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.