Pith Number

pith:F77IUVWU

pith:2007:F77IUVWUELCOZYZBRDZ4MF74SX

not attested not anchored not stored refs pending

Studying discrete dynamical systems trough differential equations

Anna Cima, Armengol Gasull, Victor Manosa

arxiv:math/0702121 v2 · 2007-02-05 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F77IUVWUELCOZYZBRDZ4MF74SX}

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	2026-05-18T04:32:43.970373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ffe8a56d422c4ece32188f3c617fc95ebba8cc20415657df71600b5b08aa785

Aliases

arxiv: math/0702121 · arxiv_version: math/0702121v2 · doi: 10.48550/arxiv.math/0702121 · pith_short_12: F77IUVWUELCO · pith_short_16: F77IUVWUELCOZYZB · pith_short_8: F77IUVWU

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/F77IUVWUELCOZYZBRDZ4MF74SX \
  | 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: 2ffe8a56d422c4ece32188f3c617fc95ebba8cc20415657df71600b5b08aa785

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a901e6255ef4c281354a39c242dce547d70ed63f12d655bbb0ae3dd526bb2f33",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DS",
    "submitted_at": "2007-02-05T20:59:59Z",
    "title_canon_sha256": "4fb3eb96a36fe27f8b92410fc4ac8d6767d0050d5a168c2c4e7e35dac189d6cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0702121",
    "kind": "arxiv",
    "version": 2
  }
}