Pith Number

pith:7QMSRTX2

pith:2008:7QMSRTX23I3OIBOT262SKNO3U4

not attested not anchored not stored refs pending

Conformal mappings versus other power series methods for solving ordinary differential equations: illustration on anharmonic oscillators

C. Bervillier

arxiv:0812.2262 v1 · 2008-12-11 · 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{7QMSRTX23I3OIBOT262SKNO3U4}

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	2026-05-18T04:23:13.480848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc1928cefada36e405d3d7b52535dba7321dbcb75ae534c6e9fc850886721de7

Aliases

arxiv: 0812.2262 · arxiv_version: 0812.2262v1 · doi: 10.48550/arxiv.0812.2262 · pith_short_12: 7QMSRTX23I3O · pith_short_16: 7QMSRTX23I3OIBOT · pith_short_8: 7QMSRTX2

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/7QMSRTX23I3OIBOT262SKNO3U4 \
  | 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: fc1928cefada36e405d3d7b52535dba7321dbcb75ae534c6e9fc850886721de7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d20ab2ceeec3f95df03ed0e11758ba74be81995f8d7e886d0869cd7b0992dc2d",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2008-12-11T22:00:33Z",
    "title_canon_sha256": "d2a797a549fd5d8d7ee286c01ccb4495daa4662d8307de8355c0cdaf46bb74ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.2262",
    "kind": "arxiv",
    "version": 1
  }
}