OpenTechnical

OT-2026-000087972

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, single stage ejector, supply line pressure sensor, 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-2026-000087972) never changes.

Identity and time

Publication numberOT-2026-000087972 · never reused
Internal UUID01a0ae9b-1aa6-7c0b-a9d6-8165a98f7a5d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087972
StatusPUBLIC

Content hashes

Canonical text360cfa2da009285f2f134ab0e37fddfdbc1d2119b3d079934bcdff97cd1a09ec
Markdown404598c621b3d9c9d2e7ac7f910db929cc63db82f3aee31afcf4c7a96169bd14
PDF
Publication pagecdef66a1e00bd2d5acebc8087080f886f0cc16b7b0baddb42510a9594ec78c47
Manifestf79712875affcc4c0a37ac0bba3aa6c587973eb697ead6f7f21cf8531e2f008e

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
SignatureXNWdKNRm6nUg5MAV6ClKdT3IpM8h7FfsMtm9PT00DIAGeUJNbeM9Q+21drtTBSxWl/WPfhLUsqIf2eY5c1aqAA==
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

2026-09-17T09:49:16.149965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087972
observed cdef66a1e00bd2d5acebc8087080f886...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:16.131477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087972/manifest.json
observed f79712875affcc4c0a37ac0bba3aa6c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:16.112418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087972/publication.md
observed 404598c621b3d9c9d2e7ac7f910db929...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:16.092261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087972/publication.txt
observed 360cfa2da009285f2f134ab0e37fddfd...
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.