Pith Number

pith:EWGHG4O6

pith:2017:EWGHG4O6YOOINTHMHSZ7T4SIGK

not attested not anchored not stored refs pending

The generalized optical memory effect

Benjamin Judkewitz, Gerwin Osnabrugge, Ioannis N. Papadopoulos, Ivo M. Vellekoop, Roarke Horstmeyer

arxiv:1705.01373 v1 · 2017-05-03 · 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{EWGHG4O6YOOINTHMHSZ7T4SIGK}

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	2026-05-18T00:45:05.302195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

258c7371dec39c86ccec3cb3f9f248328bef4f4ba70016a8450c4b67eabe4039

Aliases

arxiv: 1705.01373 · arxiv_version: 1705.01373v1 · doi: 10.48550/arxiv.1705.01373 · pith_short_12: EWGHG4O6YOOI · pith_short_16: EWGHG4O6YOOINTHM · pith_short_8: EWGHG4O6

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/EWGHG4O6YOOINTHMHSZ7T4SIGK \
  | 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: 258c7371dec39c86ccec3cb3f9f248328bef4f4ba70016a8450c4b67eabe4039

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdaab0a6c4383ee97463ea47762c2cbf07e675f908a8f2cf58cbb1431cb1afc2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-05-03T11:56:21Z",
    "title_canon_sha256": "848767a989cfc6e3a7f001a05e2035306136544950df7c320bcf98b1384afead"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01373",
    "kind": "arxiv",
    "version": 1
  }
}