OpenTechnical

OT-2026-000049827

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, 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-2026-000049827) never changes.

Identity and time

Publication numberOT-2026-000049827 · never reused
Internal UUID01a0ae81-8ff0-7530-b63a-a3fc8bab5370 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049827
StatusPUBLIC

Content hashes

Canonical text06bc13d994d7307b9b0718f8aae3bc5ab5b4b1d486e9ef9e0a113fa103c8f24e
Markdownf2a53893683836f68351a6769a1eaa1a06900241ecf98daebcb3c830d3ef65cb
PDF
Publication page32646a021e231005763cb3cebf204bc9cdcb345d703b2fcc4100c0dd0bf87009
Manifestf5776459e498aa8158c0f784551df60b38c7cdc750e8bde0312eb51e23e9ef38

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
Signatureb9FSrD55Dn25OK/R9z/4wXqNlc2cJ/L3SawYxkxT3GOTnJnmv4XDcL+QghR0B3s3hvxqbCB8ZsSPNoShm2ZjCQ==
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

2026-09-17T11:02:57.700178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049827
observed 32646a021e231005763cb3cebf204bc9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:57.680540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049827/manifest.json
observed f5776459e498aa8158c0f784551df60b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:57.660666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049827/publication.md
observed f2a53893683836f68351a6769a1eaa1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:57.639886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049827/publication.txt
observed 06bc13d994d7307b9b0718f8aae3bc5a...
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.