Pith Number

pith:PCA7GOEH

pith:2013:PCA7GOEHCMMCVG74CVY2M463VE

not attested not anchored not stored refs pending

Imaging of weak phase objects with a Zernike phase plate

C. J. Edgcombe (Dept of Physics, UK), University of Cambridge

arxiv:1307.6811 v1 · 2013-07-25 · physics.ins-det · 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{PCA7GOEHCMMCVG74CVY2M463VE}

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	2026-05-18T03:17:34.591645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7881f3388713182a9bfc1571a673dba90781d34fda58f21ae6089c3e2847bf59

Aliases

arxiv: 1307.6811 · arxiv_version: 1307.6811v1 · doi: 10.48550/arxiv.1307.6811 · pith_short_12: PCA7GOEHCMMC · pith_short_16: PCA7GOEHCMMCVG74 · pith_short_8: PCA7GOEH

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/PCA7GOEHCMMCVG74CVY2M463VE \
  | 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: 7881f3388713182a9bfc1571a673dba90781d34fda58f21ae6089c3e2847bf59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bc46144cb0869fd40982614a5115a9bd73d694be452d32e5383329ad333e1aa",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2013-07-25T16:51:50Z",
    "title_canon_sha256": "14e8b09f7b37671cac21b3c19ad9873c739ba61a7419374dfbd392b3991e9142"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6811",
    "kind": "arxiv",
    "version": 1
  }
}