Pith Number

pith:LXOPJEE5

pith:2016:LXOPJEE5LWN7ZAP3WYZ4Q5ERB6

not attested not anchored not stored refs pending

Complexity Analysis of 2-Heterogeneous Minimum Spanning Forest Problem

Qiang Sun, Zhujun Zhang

arxiv:1601.04125 v1 · 2016-01-16 · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LXOPJEE5LWN7ZAP3WYZ4Q5ERB6}

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	2026-05-18T01:22:45.838054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ddcf4909d5d9bfc81fbb633c874910fafd64b1eb18c8f175bb135be468be245

Aliases

arxiv: 1601.04125 · arxiv_version: 1601.04125v1 · doi: 10.48550/arxiv.1601.04125 · pith_short_12: LXOPJEE5LWN7 · pith_short_16: LXOPJEE5LWN7ZAP3 · pith_short_8: LXOPJEE5

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/LXOPJEE5LWN7ZAP3WYZ4Q5ERB6 \
  | 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: 5ddcf4909d5d9bfc81fbb633c874910fafd64b1eb18c8f175bb135be468be245

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52796b99ccc2847d945cf5a6a00f0dc0e3411f948d40d52f12ea27be4cb6fc76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-01-16T05:34:09Z",
    "title_canon_sha256": "a53c74e9a8f7777766f3dcd9df6219b60e9d6144c9d5264b0b12d5bf5fb2a2aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04125",
    "kind": "arxiv",
    "version": 1
  }
}