Pith Number

pith:PPPTCD73

pith:2009:PPPTCD73TD5OCMYZHE5RKSPX2U

not attested not anchored not stored refs pending

Constraints On Dynamics Preserving Certain Hyperbolic Sets

Aaron W. Brown

arxiv:0906.5014 v2 · 2009-06-26 · 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{PPPTCD73TD5OCMYZHE5RKSPX2U}

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	2026-05-18T04:42:12.471723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bdf310ffb98fae13319393b1549f7d526ab2befcbee85c34aa52c7c29330ef1

Aliases

arxiv: 0906.5014 · arxiv_version: 0906.5014v2 · doi: 10.48550/arxiv.0906.5014 · pith_short_12: PPPTCD73TD5O · pith_short_16: PPPTCD73TD5OCMYZ · pith_short_8: PPPTCD73

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/PPPTCD73TD5OCMYZHE5RKSPX2U \
  | 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: 7bdf310ffb98fae13319393b1549f7d526ab2befcbee85c34aa52c7c29330ef1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "add11a6dd0fa14695615b9fb1fffeec2cd72fdc36d6d710a062c2f7b4c642899",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2009-06-26T21:56:54Z",
    "title_canon_sha256": "9e498a95e3acc1a582e512340178bec1321fb31b870994ca7410fec58ea19ade"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5014",
    "kind": "arxiv",
    "version": 2
  }
}