Pith Number

pith:YJGDRVYB

pith:2015:YJGDRVYBISW4TDYN26VP6ZUPSM

not attested not anchored not stored refs pending

Which geodesic flows are left-handed ?

Pierre Dehornoy (IF)

arxiv:1501.02909 v2 · 2015-01-13 · math.GT · 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{YJGDRVYBISW4TDYN26VP6ZUPSM}

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	2026-05-18T00:32:45.151695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c24c38d70144adc98f0dd7aaff668f9327c0a2ba957026ce464c70d530cb7ea8

Aliases

arxiv: 1501.02909 · arxiv_version: 1501.02909v2 · doi: 10.48550/arxiv.1501.02909 · pith_short_12: YJGDRVYBISW4 · pith_short_16: YJGDRVYBISW4TDYN · pith_short_8: YJGDRVYB

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/YJGDRVYBISW4TDYN26VP6ZUPSM \
  | 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: c24c38d70144adc98f0dd7aaff668f9327c0a2ba957026ce464c70d530cb7ea8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34b39a5bb7190e126921c5ebc100354e5020513dad49fcb51a646a9304d598b8",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-01-13T08:19:50Z",
    "title_canon_sha256": "9fba1a5aa8238a38806300ebb063894170bc09a1a9d0eb0ceb0a726e6ebcf8b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02909",
    "kind": "arxiv",
    "version": 2
  }
}