Pith Number

pith:H2ENS3VJ

pith:2012:H2ENS3VJ6DZH2U4TLMUMANIT3Q

not attested not anchored not stored refs pending

On the complexity of solving initial value problems

Amaury Pouly, Daniel S. Gra\c{c}a, Olivier Bournez

arxiv:1202.4407 v1 · 2012-02-20 · cs.NA · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H2ENS3VJ6DZH2U4TLMUMANIT3Q}

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	2026-05-18T00:52:42.240000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e88d96ea9f0f27d53935b28c03513dc30f22bce3fd7c6c8b817a42267ab24bb

Aliases

arxiv: 1202.4407 · arxiv_version: 1202.4407v1 · doi: 10.48550/arxiv.1202.4407 · pith_short_12: H2ENS3VJ6DZH · pith_short_16: H2ENS3VJ6DZH2U4T · pith_short_8: H2ENS3VJ

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/H2ENS3VJ6DZH2U4TLMUMANIT3Q \
  | 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: 3e88d96ea9f0f27d53935b28c03513dc30f22bce3fd7c6c8b817a42267ab24bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "773f26e5784413e7e5f12a7c60c0cd7d618d147ff90e56d31c1fd1ad3d67744a",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2012-02-20T18:09:18Z",
    "title_canon_sha256": "ac50fa586aaf5f9689d5f199e8d2403e368260b54e8e5ba07204f5a1d730014f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4407",
    "kind": "arxiv",
    "version": 1
  }
}