Pith Number

pith:LOOTD262

pith:1991:LOOTD2626VDYXOESMSDY57RU2L

not attested not anchored not stored refs pending

Dynamics of certain non-conformal degree two maps on the plane

Ben Bielefeld, Folkert Tangerman, J. J. P. Veerman, Scott Sutherland

arxiv:math/9201293 v1 · 1991-09-26 · 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{LOOTD2626VDYXOESMSDY57RU2L}

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	2026-05-18T04:16:53.867547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b9d31ebdaf5478bb89264878efe34d2c9ebf9526e3426501ab38aa7090bb6a4

Aliases

arxiv: math/9201293 · arxiv_version: math/9201293v1 · doi: 10.48550/arxiv.math/9201293 · pith_short_12: LOOTD2626VDY · pith_short_16: LOOTD2626VDYXOES · pith_short_8: LOOTD262

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/LOOTD2626VDYXOESMSDY57RU2L \
  | 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: 5b9d31ebdaf5478bb89264878efe34d2c9ebf9526e3426501ab38aa7090bb6a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7b4f9faef6aa36e0dd3348db699437446fab7c2441cfef373e2d8b46d73b82e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DS",
    "submitted_at": "1991-09-26T00:00:00Z",
    "title_canon_sha256": "62281b27f36bf0697441d30f97bf32d99d2f9eba424b519c0e15caf164dba681"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9201293",
    "kind": "arxiv",
    "version": 1
  }
}