Pith Number

pith:PQEHG55B

pith:2017:PQEHG55BQMCKRRDO2EHXHN6CLT

not attested not anchored not stored refs pending

Phylogenetic flexibility via Hall-type inequalities and submodularity

Katharina T. Huber, Mike Steel, Vincent Moulton

arxiv:1710.08946 v2 · 2017-10-24 · 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{PQEHG55BQMCKRRDO2EHXHN6CLT}

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	2026-05-18T00:26:12.545377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c087377a18304a8c46ed10f73b7c25ccd597ed111a1d7e3864aa22388d66381

Aliases

arxiv: 1710.08946 · arxiv_version: 1710.08946v2 · doi: 10.48550/arxiv.1710.08946 · pith_short_12: PQEHG55BQMCK · pith_short_16: PQEHG55BQMCKRRDO · pith_short_8: PQEHG55B

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/PQEHG55BQMCKRRDO2EHXHN6CLT \
  | 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: 7c087377a18304a8c46ed10f73b7c25ccd597ed111a1d7e3864aa22388d66381

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d11f593a7079dc267b09c1f4981c02f75ff7cb340f3629e8c94413ee93418967",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-10-24T18:51:17Z",
    "title_canon_sha256": "685600149d4add275c840dfc4742d4299c4b7b89e01359e95c698f70eb993cd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08946",
    "kind": "arxiv",
    "version": 2
  }
}