Pith Number

pith:TRYY5SMW

pith:2018:TRYY5SMWK74JZITXEHUTPBTH7F

not attested not anchored not stored refs pending

Contributions to the Problems of Recognizing and Coloring Gammoids

Immanuel Albrecht

arxiv:1808.10496 v1 · 2018-08-30 · 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{TRYY5SMWK74JZITXEHUTPBTH7F}

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	2026-05-18T00:05:36.872715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c718ec99657f89ca27721e9378667f9534e1c807728ac44d23cd0ad2b8fd25b

Aliases

arxiv: 1808.10496 · arxiv_version: 1808.10496v1 · doi: 10.48550/arxiv.1808.10496 · pith_short_12: TRYY5SMWK74J · pith_short_16: TRYY5SMWK74JZITX · pith_short_8: TRYY5SMW

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/TRYY5SMWK74JZITXEHUTPBTH7F \
  | 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: 9c718ec99657f89ca27721e9378667f9534e1c807728ac44d23cd0ad2b8fd25b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "743da1f534778299f91c506f9b18e75654ad28f21881309a3b2d2d7de15268c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-08-30T19:49:07Z",
    "title_canon_sha256": "8666fcc1985c954747801e1046d7f2dbac05adbff64da8245d00065398737bef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10496",
    "kind": "arxiv",
    "version": 1
  }
}