Pith Number

pith:JQUGW4VY

pith:2014:JQUGW4VY2HT7FVNNIZMIIVZLVA

not attested not anchored not stored refs pending

Removal and Contraction Operations in $n$D Generalized Maps for Efficient Homology Computation

Guillaume Damiand, Rocio Gonzalez-Diaz, Samuel Peltier

arxiv:1403.3683 v1 · 2014-03-14 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQUGW4VY2HT7FVNNIZMIIVZLVA}

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	2026-05-18T02:56:19.667600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c286b72b8d1e7f2d5ad465884572ba81d721d6e537aa0cc4290653d4955a7e1

Aliases

arxiv: 1403.3683 · arxiv_version: 1403.3683v1 · doi: 10.48550/arxiv.1403.3683 · pith_short_12: JQUGW4VY2HT7 · pith_short_16: JQUGW4VY2HT7FVNN · pith_short_8: JQUGW4VY

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/JQUGW4VY2HT7FVNNIZMIIVZLVA \
  | 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: 4c286b72b8d1e7f2d5ad465884572ba81d721d6e537aa0cc4290653d4955a7e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8376268ff5a5cabff3ffd79bb541084471e00d8c29bb92bf86d9760ad2bd694",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-03-14T19:45:56Z",
    "title_canon_sha256": "3ea065b2cf62a72905825ce2f1983114a17d3eb08a0aec13983bd7fa00065fa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3683",
    "kind": "arxiv",
    "version": 1
  }
}