Pith Number

pith:WNTGUUF5

pith:2014:WNTGUUF5LI4FYE7YDNYSLLOXY3

not attested not anchored not stored refs pending

Time-domain ptychography

Dirk Spangenberg, Erich Rohwer, Michael H. Br\"ugmann, Pieter Neethling, Thomas Feurer

arxiv:1404.7621 v2 · 2014-04-30 · 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{WNTGUUF5LI4FYE7YDNYSLLOXY3}

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	2026-05-18T02:26:52.901241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3666a50bd5a385c13f81b7125add7c6c34f8b52ffa994eb07f310d49aaea253

Aliases

arxiv: 1404.7621 · arxiv_version: 1404.7621v2 · doi: 10.48550/arxiv.1404.7621 · pith_short_12: WNTGUUF5LI4F · pith_short_16: WNTGUUF5LI4FYE7Y · pith_short_8: WNTGUUF5

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/WNTGUUF5LI4FYE7YDNYSLLOXY3 \
  | 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: b3666a50bd5a385c13f81b7125add7c6c34f8b52ffa994eb07f310d49aaea253

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0db24b6c33d5018e1489b627f6478209b9d5577b223051cc9f5219d22c8b3c69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-04-30T08:03:41Z",
    "title_canon_sha256": "423b1601c143461d82e90fb52c19833522a95ec199a83386b789613f83906b0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7621",
    "kind": "arxiv",
    "version": 2
  }
}