Pith Number

pith:NOBAHFHJ

pith:2016:NOBAHFHJ2Y2J7ZT2JZPHGPDMWR

not attested not anchored not stored refs pending

Unfolding homoclinic connections formed by corner intersections in piecewise-smooth maps

David J. W. Simpson

arxiv:1603.04932 v1 · 2016-03-16 · 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{NOBAHFHJ2Y2J7ZT2JZPHGPDMWR}

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	2026-05-18T01:10:06.367289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b820394e9d6349fe67a4e5e733c6cb44baff80bc73fdbf4074d5db0252f098e

Aliases

arxiv: 1603.04932 · arxiv_version: 1603.04932v1 · doi: 10.48550/arxiv.1603.04932 · pith_short_12: NOBAHFHJ2Y2J · pith_short_16: NOBAHFHJ2Y2J7ZT2 · pith_short_8: NOBAHFHJ

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/NOBAHFHJ2Y2J7ZT2JZPHGPDMWR \
  | 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: 6b820394e9d6349fe67a4e5e733c6cb44baff80bc73fdbf4074d5db0252f098e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b8f74992b4aeccc3d787c71128c70514f24f19a0d30122552c5b6accae1ff95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2016-03-16T01:19:38Z",
    "title_canon_sha256": "aa900679fd933d67205e64530f761162fe48a9f47e4c6af3c2c09c56137f5453"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04932",
    "kind": "arxiv",
    "version": 1
  }
}