Pith Number

pith:VFTQB34L

pith:2016:VFTQB34L7JS4PTW4FP4AK6YCCP

not attested not anchored not stored refs pending

Parameterized Algorithms for the Maximum Agreement Forest Problem on Multiple Rooted Multifurcating Trees

Feng Shi, Jianer Chen, Jianxin Wang, Qilong Feng

arxiv:1608.02709 v2 · 2016-08-09 · cs.DS · 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{VFTQB34L7JS4PTW4FP4AK6YCCP}

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	2026-05-18T01:06:20.383493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a96700ef8bfa65c7cedc2bf8057b0213f136b8704492f491222eabe92fd33660

Aliases

arxiv: 1608.02709 · arxiv_version: 1608.02709v2 · doi: 10.48550/arxiv.1608.02709 · pith_short_12: VFTQB34L7JS4 · pith_short_16: VFTQB34L7JS4PTW4 · pith_short_8: VFTQB34L

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/VFTQB34L7JS4PTW4FP4AK6YCCP \
  | 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: a96700ef8bfa65c7cedc2bf8057b0213f136b8704492f491222eabe92fd33660

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c32b0f1267d9ac6eb7a744631a5c04aee14e97262a8a7b2aa46cb9d51c56af1",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-08-09T07:39:01Z",
    "title_canon_sha256": "589b86e77e1b8c305bb9177779cb73fbee30b3d32865d6aa1db18592327b57e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.02709",
    "kind": "arxiv",
    "version": 2
  }
}