Pith Number

pith:I6TNPMUM

pith:2011:I6TNPMUMVCMSWRH7NDX4ICTD6Z

not attested not anchored not stored refs pending

A Month in the Life of Groupon

Georgios Zervas, John W. Byers, Michael Mitzenmacher, Michalis Potamias

arxiv:1105.0903 v1 · 2011-05-04 · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I6TNPMUMVCMSWRH7NDX4ICTD6Z}

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	2026-05-18T02:22:00.606455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47a6d7b28ca8992b44ff68efc40a63f67dbb40c7ada18264b95e237fc03e02ad

Aliases

arxiv: 1105.0903 · arxiv_version: 1105.0903v1 · doi: 10.48550/arxiv.1105.0903 · pith_short_12: I6TNPMUMVCMS · pith_short_16: I6TNPMUMVCMSWRH7 · pith_short_8: I6TNPMUM

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/I6TNPMUMVCMSWRH7NDX4ICTD6Z \
  | 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: 47a6d7b28ca8992b44ff68efc40a63f67dbb40c7ada18264b95e237fc03e02ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "282d879169d5902f2036e0c2119a4585f969af27e2acc1ae5a72a83c70ee4865",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2011-05-04T19:25:21Z",
    "title_canon_sha256": "b138cf34130360c9e94a65d183491d6db1ac45e52edc0787bf074c9c9aa7fe0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0903",
    "kind": "arxiv",
    "version": 1
  }
}