Pith Number

pith:WUIQPHPC

pith:2016:WUIQPHPCKWY2FY3TNAV2PQUSWF

not attested not anchored not stored refs pending

The KdV hierarchy in optics

S. A. R. Horsley

arxiv:1603.03489 v1 · 2016-03-10 · 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{WUIQPHPCKWY2FY3TNAV2PQUSWF}

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	2026-05-18T01:10:06.459354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b511079de255b1a2e373682ba7c292b1557d9ff755a2e89ca770edf1495bd7ac

Aliases

arxiv: 1603.03489 · arxiv_version: 1603.03489v1 · doi: 10.48550/arxiv.1603.03489 · pith_short_12: WUIQPHPCKWY2 · pith_short_16: WUIQPHPCKWY2FY3T · pith_short_8: WUIQPHPC

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/WUIQPHPCKWY2FY3TNAV2PQUSWF \
  | 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: b511079de255b1a2e373682ba7c292b1557d9ff755a2e89ca770edf1495bd7ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ae41c9ce606f517ed1f3cd829b1d65cb32e653685792ae3b202221393bdc9a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2016-03-10T23:48:41Z",
    "title_canon_sha256": "242c5878a587e1219ac62833c3692566b79509f445817363cf270b4b5fd3c949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.03489",
    "kind": "arxiv",
    "version": 1
  }
}