Pith Number

pith:M3PDCC5V

pith:2011:M3PDCC5VQNY6IVQVBQOGTINYJX

not attested not anchored not stored refs pending

Leafwise homotopies and Hilbert-Poincare complexes. I. Regular HP-complexes and leafwise pull-back maps

Indrava Roy, Moulay-Tahar Benameur

arxiv:1109.0263 v2 · 2011-09-01 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M3PDCC5VQNY6IVQVBQOGTINYJX}

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	2026-05-18T04:08:03.495666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66de310bb58371e456150c1c69a1b84dd33c81c55c1325b7bffc0031ac5bda30

Aliases

arxiv: 1109.0263 · arxiv_version: 1109.0263v2 · doi: 10.48550/arxiv.1109.0263 · pith_short_12: M3PDCC5VQNY6 · pith_short_16: M3PDCC5VQNY6IVQV · pith_short_8: M3PDCC5V

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/M3PDCC5VQNY6IVQVBQOGTINYJX \
  | 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: 66de310bb58371e456150c1c69a1b84dd33c81c55c1325b7bffc0031ac5bda30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f6bd84d8774201448d943b2850fc6799aa57aa69035a158208e3f3cc721669d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2011-09-01T19:10:02Z",
    "title_canon_sha256": "feaa938b73e90572da0e3cf9e3147afaef985194a45b2efd376d1338d88aa451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0263",
    "kind": "arxiv",
    "version": 2
  }
}