Pith Number

pith:PSEWWX6F

pith:2018:PSEWWX6FXVZT6HYHJAQMKCDWCM

not attested not anchored not stored refs pending

Rainbow triangles in arc-colored digraphs

Ruonan Li, Shenggui Zhang, Wei Li

arxiv:1810.05960 v1 · 2018-10-14 · 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{PSEWWX6FXVZT6HYHJAQMKCDWCM}

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	2026-05-18T00:03:21.850829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c896b5fc5bd733f1f074820c508761301260e720f886f0d7555ae82b14f626e

Aliases

arxiv: 1810.05960 · arxiv_version: 1810.05960v1 · doi: 10.48550/arxiv.1810.05960 · pith_short_12: PSEWWX6FXVZT · pith_short_16: PSEWWX6FXVZT6HYH · pith_short_8: PSEWWX6F

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/PSEWWX6FXVZT6HYHJAQMKCDWCM \
  | 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: 7c896b5fc5bd733f1f074820c508761301260e720f886f0d7555ae82b14f626e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88fe7fcd42e5d17b35deaac1fe2a96074135f542f6a99b7a90000a214ea8194a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-10-14T03:17:24Z",
    "title_canon_sha256": "7ad076d3355f691ed75b03e2d3d9f7f91fd493c1f4aac0d2363857a6b10d87f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05960",
    "kind": "arxiv",
    "version": 1
  }
}