Pith Number

pith:D4QWJXRS

pith:2021:D4QWJXRSH6EFZR7Y4QZAVXH72W

not attested not anchored not stored refs pending

Towards Low-Photon Nanoscale Imaging: Holographic Phase Retrieval via Maximum Likelihood Optimization

David A. Barmherzig, Ju Sun

arxiv:2105.11512 v2 · 2021-05-24 · eess.IV · cs.IT · math.IT · physics.optics · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D4QWJXRSH6EFZR7Y4QZAVXH72W}

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	2026-07-05T03:57:40.152279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f2164de323f885cc7f8e4320adcffd5b0ebe8e12dfeb583b1f21e3ff460af8a

Aliases

arxiv: 2105.11512 · arxiv_version: 2105.11512v2 · doi: 10.48550/arxiv.2105.11512 · pith_short_12: D4QWJXRSH6EF · pith_short_16: D4QWJXRSH6EFZR7Y · pith_short_8: D4QWJXRS

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/D4QWJXRSH6EFZR7Y4QZAVXH72W \
  | 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: 1f2164de323f885cc7f8e4320adcffd5b0ebe8e12dfeb583b1f21e3ff460af8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d689e2f29852be27a9ceb4ff7822dd78e00aa8d81f6c29286e7a3044c5e1022",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "physics.optics",
      "stat.AP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-05-24T19:44:43Z",
    "title_canon_sha256": "621f58bb605283c8d2bb1bf2871faa5e319a3ebb776a7e59f8ea6686e221a380"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.11512",
    "kind": "arxiv",
    "version": 2
  }
}