Pith Number

pith:GSVLJKFH

pith:2019:GSVLJKFH3K6CFP5M3NMQNLEWZ7

not attested not anchored not stored refs pending

Min-Cost Flow in Unit-Capacity Planar Graphs

Adam Karczmarz, Piotr Sankowski

arxiv:1907.02274 v1 · 2019-07-04 · 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{GSVLJKFH3K6CFP5M3NMQNLEWZ7}

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	2026-05-17T23:41:29.180207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34aab4a8a7dabc22bfacdb5906ac96cfe5a2dcd4f6aa57bd85ff8991f36b34b1

Aliases

arxiv: 1907.02274 · arxiv_version: 1907.02274v1 · doi: 10.48550/arxiv.1907.02274 · pith_short_12: GSVLJKFH3K6C · pith_short_16: GSVLJKFH3K6CFP5M · pith_short_8: GSVLJKFH

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/GSVLJKFH3K6CFP5M3NMQNLEWZ7 \
  | 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: 34aab4a8a7dabc22bfacdb5906ac96cfe5a2dcd4f6aa57bd85ff8991f36b34b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e6362e86a10e86060c141e0dbe8fa64a80376a9a72dd566b4dad250851240ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-07-04T08:35:02Z",
    "title_canon_sha256": "d5a906756fda0eb2ff102300bcd48a081f54fa4c4b3617b5497d03e7744aa2c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02274",
    "kind": "arxiv",
    "version": 1
  }
}