OpenTechnical

OT-2026-000027000

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000027000) never changes.

Identity and time

Publication numberOT-2026-000027000 · never reused
Internal UUID01a0ae72-3453-7c2c-b2c5-e94718f7b2ac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027000
StatusPUBLIC

Content hashes

Canonical text44fd5b7ca3a846f82b2bb13ba41a6ff782562ef84378e5892d3baa860fe31ab3
Markdownf86969156c3f8ebb08bfd102fdf21f1609047b186f50cbb9c264931e38f956f0
PDF
Publication pageedf5af212fde14e4e22962df066dededc67ad2cd512473c39123cf315b62366e
Manifest54249e3dce381684c04cbe73f25a02217371e195149c2c7da3670e65d0218584

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+Tyy4iR/lRDpULkdGPPjUsKro/E99Qrj/zPpB3x6aXt4943WQZ6Atsw87O/ioiArP2tloszgRPAUZul6E8EuAQ==
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

2026-09-17T11:43:37.786200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027000
observed edf5af212fde14e4e22962df066deded...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:37.770458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027000/manifest.json
observed 54249e3dce381684c04cbe73f25a0221...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:37.753419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027000/publication.md
observed f86969156c3f8ebb08bfd102fdf21f16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:37.737731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027000/publication.txt
observed 44fd5b7ca3a846f82b2bb13ba41a6ff7...
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.