Pith Number

pith:6VWCBFWE

pith:2018:6VWCBFWE3E6FWCNEMCKYIMS5RA

not attested not anchored not stored refs pending

On testing substitutability

Cosmina Croitoru, Kurt Mehlhorn

arxiv:1805.07642 v1 · 2018-05-19 · cs.DS · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6VWCBFWE3E6FWCNEMCKYIMS5RA}

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	2026-05-18T00:15:32.959739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f56c2096c4d93c5b09a4609584325d8825f0689e33a5c10387fdaffe5a5cd9b5

Aliases

arxiv: 1805.07642 · arxiv_version: 1805.07642v1 · doi: 10.48550/arxiv.1805.07642 · pith_short_12: 6VWCBFWE3E6F · pith_short_16: 6VWCBFWE3E6FWCNE · pith_short_8: 6VWCBFWE

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/6VWCBFWE3E6FWCNEMCKYIMS5RA \
  | 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: f56c2096c4d93c5b09a4609584325d8825f0689e33a5c10387fdaffe5a5cd9b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f2bcc89b5eb042e5d2a23cf9807212f3deebbead7c00330550ec538e488bab1",
    "cross_cats_sorted": [
      "econ.EM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-05-19T19:09:27Z",
    "title_canon_sha256": "bb521b3c468ae5bd94daf5d824740f890ff7211163b53efb89d57c879510224d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07642",
    "kind": "arxiv",
    "version": 1
  }
}