Pith Number

pith:2NUL4OFJ

pith:2009:2NUL4OFJWKIOHE3ZCFFYCTVBMK

not attested not anchored not stored refs pending

On the Schrodinger-Maxwell equations under the effect of a general nonlinear term

Alessio Pomponio, Antonio Azzollini, Pietro d'Avenia

arxiv:0904.1557 v2 · 2009-04-09 · math.AP · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2NUL4OFJWKIOHE3ZCFFYCTVBMK}

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	2026-05-18T02:14:06.679547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d368be38a9b290e39379114b814ea162a6c975246130ff0d66c107e497d9602d

Aliases

arxiv: 0904.1557 · arxiv_version: 0904.1557v2 · doi: 10.48550/arxiv.0904.1557 · pith_short_12: 2NUL4OFJWKIO · pith_short_16: 2NUL4OFJWKIOHE3Z · pith_short_8: 2NUL4OFJ

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/2NUL4OFJWKIOHE3ZCFFYCTVBMK \
  | 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: d368be38a9b290e39379114b814ea162a6c975246130ff0d66c107e497d9602d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fece9022e7ed44e8e64c21926de31ce7e8c4a815b55fe9aece144e72c6eca9fd",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-04-09T16:56:15Z",
    "title_canon_sha256": "64fb17cb9d7c263f5f9839cac784ec2932b5fdf61270c9c89715cbd7f74e5713"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1557",
    "kind": "arxiv",
    "version": 2
  }
}