Pith Number

pith:2O5SDYRA

pith:2018:2O5SDYRAY6GEWZE4FFTUPLHSLB

not attested not anchored not stored refs pending

Ptychographic characterization of polymer compound refractive lenses manufactured by additive technology

Alexander Petrov, Christian David, Christian Schroer, Felix Wittwer, Frank Seiboth, Frieder Koch, Ksenia Abrashitova, Maik Kahnt, Martin Seyrich Andrey Fedyanin, Mikhail Lyubomirskiy, Natalia Kokareva, Vladimir Bessonov

arxiv:1812.05897 v1 · 2018-12-14 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2O5SDYRAY6GEWZE4FFTUPLHSLB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:50:09.099944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3bb21e220c78c4b649c296747acf2586f8bf0afcfd80f40143b95968bb600ae

Aliases

arxiv: 1812.05897 · arxiv_version: 1812.05897v1 · doi: 10.48550/arxiv.1812.05897 · pith_short_12: 2O5SDYRAY6GE · pith_short_16: 2O5SDYRAY6GEWZE4 · pith_short_8: 2O5SDYRA

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2O5SDYRAY6GEWZE4FFTUPLHSLB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d3bb21e220c78c4b649c296747acf2586f8bf0afcfd80f40143b95968bb600ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce93b1ebc724aeb8afe3aa2f1ce5c953c5af4e4814726839c0eeef7dd3ea050d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-12-14T12:57:12Z",
    "title_canon_sha256": "cd901e33505cc765de48756e108a00b7e0796c00ffba41d0dd9b557cc0612ef2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05897",
    "kind": "arxiv",
    "version": 1
  }
}