Pith Number

pith:WPYP3KLA

pith:2015:WPYP3KLAYJBKNVTHMLVDGLRA5Y

not attested not anchored not stored refs pending

Lights Illuminate Surfaces Superluminally

Elias Lilleskov, Qi Zhong, Robert J. Nemiroff

arxiv:1506.02643 v1 · 2015-06-08 · physics.pop-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{WPYP3KLAYJBKNVTHMLVDGLRA5Y}

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	2026-05-18T01:12:13.422377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3f0fda960c242a6d66762ea332e20ee381cd6a62a0b83239e157d6d3dad3349

Aliases

arxiv: 1506.02643 · arxiv_version: 1506.02643v1 · doi: 10.48550/arxiv.1506.02643 · pith_short_12: WPYP3KLAYJBK · pith_short_16: WPYP3KLAYJBKNVTH · pith_short_8: WPYP3KLA

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/WPYP3KLAYJBKNVTHMLVDGLRA5Y \
  | 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: b3f0fda960c242a6d66762ea332e20ee381cd6a62a0b83239e157d6d3dad3349

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e208c0f4337b3b099af7c25e4f385388400aa047914fd2d626d0694015ea3b3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2015-06-08T19:58:01Z",
    "title_canon_sha256": "6f876ce50824cc62b5f77513e7b05fadec1947d33c8b41a739ea63ef3a1f6748"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02643",
    "kind": "arxiv",
    "version": 1
  }
}