Pith Number

pith:53PSJL5O

pith:2019:53PSJL5OK4T4ZF7C4NLJVTKOUM

not attested not anchored not stored refs pending

Spanning eulerian subdigraphs avoiding k prescribed arcs in tournaments

Anders Yeo, Hugues Depres, J{\o}rgen Bang-Jensen

arxiv:1907.00853 v1 · 2019-07-01 · 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{53PSJL5OK4T4ZF7C4NLJVTKOUM}

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	2026-05-17T23:41:47.873146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eedf24afae5727cc97e2e3569acd4ea3381e7f18c513fcac7b277bfabcc45015

Aliases

arxiv: 1907.00853 · arxiv_version: 1907.00853v1 · doi: 10.48550/arxiv.1907.00853 · pith_short_12: 53PSJL5OK4T4 · pith_short_16: 53PSJL5OK4T4ZF7C · pith_short_8: 53PSJL5O

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/53PSJL5OK4T4ZF7C4NLJVTKOUM \
  | 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: eedf24afae5727cc97e2e3569acd4ea3381e7f18c513fcac7b277bfabcc45015

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31ba49af6cbecae0ac695648a5be728662bacb5f4f832b87886c3da60484333f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-07-01T15:20:03Z",
    "title_canon_sha256": "e9a79df63ef550f4c9ff245de249497efcb09070808d141849056dc7b6790bce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00853",
    "kind": "arxiv",
    "version": 1
  }
}