OpenTechnical

OT-2026-000077057

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, 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-2026-000077057) never changes.

Identity and time

Publication numberOT-2026-000077057 · never reused
Internal UUID01a0ae94-f507-75c1-abf8-123e7712d32b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077057
StatusPUBLIC

Content hashes

Canonical text23c32346e39c0151c0ed352d8ac963005ac63835b732b186571ada9974e71835
Markdown57f3ee1b7616eb56dbbebab1f6cddfd0a65a9d4a2dc3e84e93cf3da81b9abadd
PDF
Publication pageabc268e19bdc3e3a7fe6874deea464342b8440303f3723b900671f95c1386947
Manifest3c65fe128c43f4cd5e41792aec040cb06e580feb4a6b661aa4dfe61f03bdf90e

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
SignatureYdfGwNZqf9/aRhDHzw+TAeWL4XhMetzdp8L9LpaPz6OslUW+2BNAdAMb1UiPvbjCRXo7GIwfR/ORFzu0ZyX5BA==
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

2026-09-17T10:11:20.780097ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077057
observed abc268e19bdc3e3a7fe6874deea46434...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:20.759376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077057/manifest.json
observed 3c65fe128c43f4cd5e41792aec040cb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:20.288542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077057/publication.md
observed 57f3ee1b7616eb56dbbebab1f6cddfd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:20.267529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077057/publication.txt
observed 23c32346e39c0151c0ed352d8ac96300...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:30.432518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077057
observed abc268e19bdc3e3a7fe6874deea46434...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:30.413330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077057/manifest.json
observed 3c65fe128c43f4cd5e41792aec040cb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:30.394149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077057/publication.md
observed 57f3ee1b7616eb56dbbebab1f6cddfd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:30.374330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077057/publication.txt
observed 23c32346e39c0151c0ed352d8ac96300...
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.