Pith Number

pith:VGS7RBEL

pith:2011:VGS7RBEL2OCMNGSH4AHA47NQGV

not attested not anchored not stored refs pending

Simplification Techniques for Maps in Simplicial Topology

Pedro Real, Rocio Gonzalez-Diaz

arxiv:1105.5502 v1 · 2011-05-27 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGS7RBEL2OCMNGSH4AHA47NQGV}

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	2026-05-18T04:21:11.551071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9a5f8848bd384c69a47e00e0e7db03578d4321f9911d600c52361b3399cd62a

Aliases

arxiv: 1105.5502 · arxiv_version: 1105.5502v1 · doi: 10.48550/arxiv.1105.5502 · pith_short_12: VGS7RBEL2OCM · pith_short_16: VGS7RBEL2OCMNGSH · pith_short_8: VGS7RBEL

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/VGS7RBEL2OCMNGSH4AHA47NQGV \
  | 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: a9a5f8848bd384c69a47e00e0e7db03578d4321f9911d600c52361b3399cd62a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4449d740951c153f7f478fa4e02905ac6ed538dd64575f61874d8be13c79343c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2011-05-27T09:13:36Z",
    "title_canon_sha256": "bb2501c6cbed689a4540ea43e68632f19f994879327b09e2109de9c091ea2b37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5502",
    "kind": "arxiv",
    "version": 1
  }
}