Pith Number

pith:IOYDBYEL

pith:2016:IOYDBYELJKDTBZX6VMKEES6T6K

not attested not anchored not stored refs pending

Uniquely Restricted Matchings in Interval Graphs

Dalu Jacob, Mathew C. Francis, Satyabrata Jana

arxiv:1604.07016 v2 · 2016-04-24 · cs.DM · 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{IOYDBYELJKDTBZX6VMKEES6T6K}

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	2026-05-18T01:15:13.501634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43b030e08b4a8730e6feab14424bd3f2ac186e63bf787615f0689e611cda4fae

Aliases

arxiv: 1604.07016 · arxiv_version: 1604.07016v2 · doi: 10.48550/arxiv.1604.07016 · pith_short_12: IOYDBYELJKDT · pith_short_16: IOYDBYELJKDTBZX6 · pith_short_8: IOYDBYEL

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/IOYDBYELJKDTBZX6VMKEES6T6K \
  | 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: 43b030e08b4a8730e6feab14424bd3f2ac186e63bf787615f0689e611cda4fae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c30705a533333925468f8188e2121ec4e91a9251235645cff82dc89c4f1313f",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-04-24T11:52:17Z",
    "title_canon_sha256": "e6dc3fe4bd08b2b0731b288c7b8f8604d658a35684470077199ff1c4e8d03c6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.07016",
    "kind": "arxiv",
    "version": 2
  }
}