Pith Number

pith:WF436HHC

pith:2025:WF436HHCVQNJCXNLRGLE6LRZA6

not attested not anchored not stored refs pending

Packing tetrahedrons in edge-weighted graphs

Donglei Yang, Shunan Wei, Wanting Sun

arxiv:2506.07147 v1 · 2025-06-08 · 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{WF436HHCVQNJCXNLRGLE6LRZA6}

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	2026-07-05T11:18:02.456603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b179bf1ce2ac1a915dab89964f2e3907964ff575260e5f361d4e770665175f73

Aliases

arxiv: 2506.07147 · arxiv_version: 2506.07147v1 · doi: 10.48550/arxiv.2506.07147 · pith_short_12: WF436HHCVQNJ · pith_short_16: WF436HHCVQNJCXNL · pith_short_8: WF436HHC

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/WF436HHCVQNJCXNLRGLE6LRZA6 \
  | 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: b179bf1ce2ac1a915dab89964f2e3907964ff575260e5f361d4e770665175f73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f35c44a0043866ae327c48512bcd19fa9f0b8fb40925ed37ac9402f60dbb44cb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-06-08T13:50:57Z",
    "title_canon_sha256": "7d172974b2846ac7b80d0cae6287e6c45520e121a14a8c758b7942e2bc8e0a32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.07147",
    "kind": "arxiv",
    "version": 1
  }
}