OpenTechnical

OT-2026-000042753

Publication integrity record

Single cup vacuum gripper, two stage ejector, sustained blow-off after set-down

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-2026-000042753) never changes.

Identity and time

Publication numberOT-2026-000042753 · never reused
Internal UUID01a0ae7a-c0cf-7275-8241-39a779e1bbf3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042753
StatusPUBLIC

Content hashes

Canonical text120cc9c47ac5694b7bb83f631e6ec49b9538bdeb033d34e82f47a8febd62b756
Markdownf90f5f6fd59990b910cc6539a199efa032a3326f545978ab7bbf4d7460694106
PDF
Publication page467fc98c116335d710be70df2a036ed9be592625f62d80e774f8533100efcf5e
Manifest18f68c77b4c88d6280422a73c23dbd23316dc9fce3ce129160bdd0e3e4734da2

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
SignatureOIoIRQRzzJyxYhhyGZlQ4C79kB1dDRNJP8kf7nP4gRrPcrlXqjXcF8Qjkn67JzlvNWE/t9gje601Lb2apsKcBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:15:12.321010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042753
observed 467fc98c116335d710be70df2a036ed9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.298329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042753/manifest.json
observed 18f68c77b4c88d6280422a73c23dbd23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.279523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042753/publication.md
observed f90f5f6fd59990b910cc6539a199efa0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.260301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042753/publication.txt
observed 120cc9c47ac5694b7bb83f631e6ec49b...
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.