Pith Number

pith:US2EAR6W

pith:2016:US2EAR6WBKWY5V4XQMPYIV42QD

not attested not anchored not stored refs pending

On bipartite mixed graphs

C. Dalf\'o, M.A. Fiol, N. L\'opez

arxiv:1611.01618 v1 · 2016-11-05 · 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{US2EAR6WBKWY5V4XQMPYIV42QD}

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	2026-05-18T01:00:04.854958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4b44047d60aad8ed797831f84579a80e939bac759593755cae3d8a438ed2228

Aliases

arxiv: 1611.01618 · arxiv_version: 1611.01618v1 · doi: 10.48550/arxiv.1611.01618 · pith_short_12: US2EAR6WBKWY · pith_short_16: US2EAR6WBKWY5V4X · pith_short_8: US2EAR6W

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/US2EAR6WBKWY5V4XQMPYIV42QD \
  | 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: a4b44047d60aad8ed797831f84579a80e939bac759593755cae3d8a438ed2228

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2714ef6cf724635b7e0dd25fc1dc111b50e77572461751bef60e2b6a7b88c2d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-11-05T08:43:59Z",
    "title_canon_sha256": "1a2527b6c3607905cae439bc077f4ac0b18bde1e7bd507bba35c55bc8ce5434d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.01618",
    "kind": "arxiv",
    "version": 1
  }
}