Pith Number

pith:SG3DNURF

pith:2014:SG3DNURFYRZQVMICFNE5CW73YR

not attested not anchored not stored refs pending

Practical Guide to the Symbolic Computation of Symmetries of Differential Equations

Rubens de Melo Marinho Junior, Stanly Steinberg

arxiv:1409.8364 v1 · 2014-09-30 · math-ph · math.AP · 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{SG3DNURFYRZQVMICFNE5CW73YR}

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	2026-05-18T02:41:25.502211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91b636d225c4730ab1022b49d15bfbc449d4184c41bc2aa81a6aea2dccfbf8e6

Aliases

arxiv: 1409.8364 · arxiv_version: 1409.8364v1 · doi: 10.48550/arxiv.1409.8364 · pith_short_12: SG3DNURFYRZQ · pith_short_16: SG3DNURFYRZQVMIC · pith_short_8: SG3DNURF

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/SG3DNURFYRZQVMICFNE5CW73YR \
  | 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: 91b636d225c4730ab1022b49d15bfbc449d4184c41bc2aa81a6aea2dccfbf8e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72c2ea37bfaad15275f9035ef3f199a5b05ee320fa8ac95b6978b5aeb8050f93",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2014-09-30T02:18:30Z",
    "title_canon_sha256": "a4ae30c61a00d96c0f6e74ae7368b6935981d0d98bc83f1a3bf64d298a426ed6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8364",
    "kind": "arxiv",
    "version": 1
  }
}