Pith Number

pith:DMQXF4L2

pith:2014:DMQXF4L2ELEZAS4H3Z3WEPT3GF

not attested not anchored not stored refs pending

Fractional covers and matchings in families of weighted $d$-intervals

Ron Aharoni, Shira Zerbib, Tomas Kaiser

arxiv:1402.2064 v2 · 2014-02-10 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DMQXF4L2ELEZAS4H3Z3WEPT3GF}

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	2026-05-18T02:57:26.046508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b2172f17a22c9904b87de77623e7b316e94b853c30c2831b8f6d6c802edcc65

Aliases

arxiv: 1402.2064 · arxiv_version: 1402.2064v2 · doi: 10.48550/arxiv.1402.2064 · pith_short_12: DMQXF4L2ELEZ · pith_short_16: DMQXF4L2ELEZAS4H · pith_short_8: DMQXF4L2

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/DMQXF4L2ELEZAS4H3Z3WEPT3GF \
  | 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: 1b2172f17a22c9904b87de77623e7b316e94b853c30c2831b8f6d6c802edcc65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85063ec2fe48036951e5811b8ed359b62963b307e9af1ea8df2c693930a8fb44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-02-10T08:28:10Z",
    "title_canon_sha256": "bc7e3868324dfaf97df843ad5674821751234f3a448ba22430f060fc4ba2f58c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2064",
    "kind": "arxiv",
    "version": 2
  }
}