Pith Number

pith:QTYK55RJ

pith:2015:QTYK55RJU4MMWP5VCJ427DIPGW

not attested not anchored not stored refs pending

Approximating the Smallest Spanning Subgraph for 2-Edge-Connectivity in Directed Graphs

Charis Papadopoulos, Giuseppe F. Italiano, Loukas Georgiadis, Nikos Parotsidis

arxiv:1509.02841 v1 · 2015-09-09 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QTYK55RJU4MMWP5VCJ427DIPGW}

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	2026-05-18T01:33:33.106799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84f0aef629a718cb3fb51279af8d0f3589fa6178a1b7dafcd3f18482d109fe48

Aliases

arxiv: 1509.02841 · arxiv_version: 1509.02841v1 · doi: 10.48550/arxiv.1509.02841 · pith_short_12: QTYK55RJU4MM · pith_short_16: QTYK55RJU4MMWP5V · pith_short_8: QTYK55RJ

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/QTYK55RJU4MMWP5VCJ427DIPGW \
  | 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: 84f0aef629a718cb3fb51279af8d0f3589fa6178a1b7dafcd3f18482d109fe48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45e3717546734790e43b117b55ebed9db9512cfc93c80f86c42373d62fc07afd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-09-09T16:31:24Z",
    "title_canon_sha256": "edc7b0a930efdf33cdb30e9ed247aca059adcc5be76c08e7ab158b5f0f46da3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02841",
    "kind": "arxiv",
    "version": 1
  }
}