Pith Number

pith:UKWQIJV2

pith:2018:UKWQIJV2AC6JEMGZSKZOS7BAS7

not attested not anchored not stored refs pending

Comparing Published Scientific Journal Articles to Their Pre-Print Versions -- Extended Version

Martin Klein, Peter Broadwell, Sharon E. Farb, Todd Grappone

arxiv:1803.09701 v1 · 2018-03-26 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UKWQIJV2AC6JEMGZSKZOS7BAS7}

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	2026-05-18T00:20:10.639892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ad0426ba00bc9230d992b2e97c2097e77d049899d665be5060cd6106363d60

Aliases

arxiv: 1803.09701 · arxiv_version: 1803.09701v1 · doi: 10.48550/arxiv.1803.09701 · pith_short_12: UKWQIJV2AC6J · pith_short_16: UKWQIJV2AC6JEMGZ · pith_short_8: UKWQIJV2

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/UKWQIJV2AC6JEMGZSKZOS7BAS7 \
  | 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: a2ad0426ba00bc9230d992b2e97c2097e77d049899d665be5060cd6106363d60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cc083e2cf126ffc792854319f1e07389d5e63194dcc94f54819fdf157391519",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-03-26T16:28:18Z",
    "title_canon_sha256": "9b798ab00a67a13d893daa2b7cf0a0225ad377bb1d1484c6d9eabaf3a954fe38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09701",
    "kind": "arxiv",
    "version": 1
  }
}