Pith Number

pith:B7N4SJLB

pith:2019:B7N4SJLBBAEDU3ZVQWN5RB24SN

not attested not anchored not stored refs pending

Schr\"oder Coloring and Applications

Daniel Birmajer, Juan B. Gil, Juan D. Gil, Michael D. Weiner

arxiv:1908.08103 v1 · 2019-08-21 · 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{B7N4SJLBBAEDU3ZVQWN5RB24SN}

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	2026-07-05T04:04:34.238857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fdbc9256108083a6f35859bd8875c93508d6d1c01fa99005f6f5816831c57e2

Aliases

arxiv: 1908.08103 · arxiv_version: 1908.08103v1 · doi: 10.48550/arxiv.1908.08103 · pith_short_12: B7N4SJLBBAED · pith_short_16: B7N4SJLBBAEDU3ZV · pith_short_8: B7N4SJLB

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/B7N4SJLBBAEDU3ZVQWN5RB24SN \
  | 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: 0fdbc9256108083a6f35859bd8875c93508d6d1c01fa99005f6f5816831c57e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a02e42a4e4e41696457937ba18d6ba4ce81d169dc6cc2fcb88ce5d08743758b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-08-21T20:07:37Z",
    "title_canon_sha256": "8d02b6e4522f22018fda44501c882842ea29d3d43beae05498020c897df4c2c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08103",
    "kind": "arxiv",
    "version": 1
  }
}