Pith Number

pith:QPT5PPL7

pith:2017:QPT5PPL7HV26DH4QZFJ5M3A6QM

not attested not anchored not stored refs pending

Total Forcing Sets in Trees

Michael Henning, Randy Davila

arxiv:1702.06496 v1 · 2017-02-21 · 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{QPT5PPL7HV26DH4QZFJ5M3A6QM}

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	2026-05-18T00:50:13.991970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e7d7bd7f3d75e19f90c953d66c1e8305e61a8a0e06ff3879f692f53751527f

Aliases

arxiv: 1702.06496 · arxiv_version: 1702.06496v1 · doi: 10.48550/arxiv.1702.06496 · pith_short_12: QPT5PPL7HV26 · pith_short_16: QPT5PPL7HV26DH4Q · pith_short_8: QPT5PPL7

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/QPT5PPL7HV26DH4QZFJ5M3A6QM \
  | 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: 83e7d7bd7f3d75e19f90c953d66c1e8305e61a8a0e06ff3879f692f53751527f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aecdf832119c70ca55866de2c030523e4ab1be044a32fc6825517b9167f045c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-21T18:01:01Z",
    "title_canon_sha256": "afd755075ac44bf08995f4edf2ba4b6304a0df70af0e9b1d8409a75fcfac5847"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06496",
    "kind": "arxiv",
    "version": 1
  }
}