Pith Number

pith:TGFUPYFU

pith:2014:TGFUPYFUI5FBR7WO2DKVUSQOOB

not attested not anchored not stored refs pending

Matchings in metric spaces, the dual problem and calibrations modulo 2

Mircea Petrache, Roger Z\"ust

arxiv:1410.0062 v2 · 2014-09-30 · math.MG · math.CO · math.DG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TGFUPYFUI5FBR7WO2DKVUSQOOB}

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	2026-05-18T01:04:09.613558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

998b47e0b4474a18feced0d55a4a0e705a43a2bccb3d269b4c5898491e7d61f6

Aliases

arxiv: 1410.0062 · arxiv_version: 1410.0062v2 · doi: 10.48550/arxiv.1410.0062 · pith_short_12: TGFUPYFUI5FB · pith_short_16: TGFUPYFUI5FBR7WO · pith_short_8: TGFUPYFU

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/TGFUPYFUI5FBR7WO2DKVUSQOOB \
  | 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: 998b47e0b4474a18feced0d55a4a0e705a43a2bccb3d269b4c5898491e7d61f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a292a58ea964a021fb9070727343b1e993141cd685cf291dd55e95f8a3239b04",
    "cross_cats_sorted": [
      "math.CO",
      "math.DG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-09-30T21:50:33Z",
    "title_canon_sha256": "97eb17f0056b8c5c6575189fca138c4f5f4d91c628fdeed46119b82952a82dfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.0062",
    "kind": "arxiv",
    "version": 2
  }
}