Pith Number

pith:D5DHPN26

pith:2019:D5DHPN26NTAWZJZIFHRPIJKTMK

not attested not anchored not stored refs pending

Spatially-selective and quantum-statistics-limited light stimulus for retina biometrics and pupillometry

A. Gratsea, A. Margaritakis, G. Anyfantaki, I. K. Kominis, K. Mouloudakis

arxiv:1907.06539 v3 · 2019-07-15 · physics.app-ph · physics.bio-ph · physics.med-ph · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D5DHPN26NTAWZJZIFHRPIJKTMK}

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	2026-07-05T01:01:00.022763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f4677b75e6cc16ca72829e2f4255362bf5742cc04a740adcbd4ffb602eef8e5

Aliases

arxiv: 1907.06539 · arxiv_version: 1907.06539v3 · doi: 10.48550/arxiv.1907.06539 · pith_short_12: D5DHPN26NTAW · pith_short_16: D5DHPN26NTAWZJZI · pith_short_8: D5DHPN26

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/D5DHPN26NTAWZJZIFHRPIJKTMK \
  | 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: 1f4677b75e6cc16ca72829e2f4255362bf5742cc04a740adcbd4ffb602eef8e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8e1bb9593b6dcd451a9c357beb1ab38d14da1c9cac26579f81f5643ab762e71",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.med-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2019-07-15T15:08:54Z",
    "title_canon_sha256": "32727e9671d10b9236efb21527e22695e764be75bded51bd5775952a76167328"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06539",
    "kind": "arxiv",
    "version": 3
  }
}