Pith Number

pith:TPGBMIIA

pith:2014:TPGBMIIATAYXWZXMSCNEC6H4OM

not attested not anchored not stored refs pending

Rainbow sets in the intersection of two matroids

Daniel Kotlar, Ran Ziv, Ron Aharoni

arxiv:1405.3119 v3 · 2014-05-13 · 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{TPGBMIIATAYXWZXMSCNEC6H4OM}

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	2026-05-18T01:35:16.647712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bcc16210098317b66ec909a4178fc7327424eaeff730ee8ea59e2e84276ae06

Aliases

arxiv: 1405.3119 · arxiv_version: 1405.3119v3 · doi: 10.48550/arxiv.1405.3119 · pith_short_12: TPGBMIIATAYX · pith_short_16: TPGBMIIATAYXWZXM · pith_short_8: TPGBMIIA

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/TPGBMIIATAYXWZXMSCNEC6H4OM \
  | 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: 9bcc16210098317b66ec909a4178fc7327424eaeff730ee8ea59e2e84276ae06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcadf706ec7e8a467eba3fc0eeef8eedcf68f0c756813f74cfd21074d954e2db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-13T12:07:25Z",
    "title_canon_sha256": "acd40548e0d6164a5a316135694b554b0843f22d63ac155acdbb70cab6506e16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.3119",
    "kind": "arxiv",
    "version": 3
  }
}