Pith Number

pith:DU4IDZDO

pith:2009:DU4IDZDOT5SWUYOAA4UIMXNGYB

not attested not anchored not stored refs pending

Relative fixed point theory

Kate Ponto

arxiv:0906.0762 v1 · 2009-06-03 · math.AT · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DU4IDZDOT5SWUYOAA4UIMXNGYB}

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	2026-05-18T02:41:51.247777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d3881e46e9f656a61c00728865da6c04fe768b6cce739ed582f117c250a0299

Aliases

arxiv: 0906.0762 · arxiv_version: 0906.0762v1 · doi: 10.48550/arxiv.0906.0762 · pith_short_12: DU4IDZDOT5SW · pith_short_16: DU4IDZDOT5SWUYOA · pith_short_8: DU4IDZDO

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/DU4IDZDOT5SWUYOAA4UIMXNGYB \
  | 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: 1d3881e46e9f656a61c00728865da6c04fe768b6cce739ed582f117c250a0299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d12bdf501d55ff59363d9cf72fb267d57229a51f3a43cca560f1b4de19041209",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2009-06-03T19:39:48Z",
    "title_canon_sha256": "7b576834506c3feeb9a0bdf7700b8a10a7b5106940d620cbc5e8e214a5669aba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0762",
    "kind": "arxiv",
    "version": 1
  }
}