Pith Number

pith:MHBLQUZE

pith:2012:MHBLQUZEQSN6TMC2Q6ZZIHQDIJ

not attested not anchored not stored refs pending

The Groupon Effect on Yelp Ratings: A Root Cause Analysis

Georgios Zervas, John W. Byers, Michael Mitzenmacher

arxiv:1202.2369 v1 · 2012-02-10 · 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{MHBLQUZEQSN6TMC2Q6ZZIHQDIJ}

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	2026-05-18T02:21:17.935143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61c2b85324849be9b05a87b3941e03425584305e0ef4ae1192b46d7dec6e862c

Aliases

arxiv: 1202.2369 · arxiv_version: 1202.2369v1 · doi: 10.48550/arxiv.1202.2369 · pith_short_12: MHBLQUZEQSN6 · pith_short_16: MHBLQUZEQSN6TMC2 · pith_short_8: MHBLQUZE

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/MHBLQUZEQSN6TMC2Q6ZZIHQDIJ \
  | 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: 61c2b85324849be9b05a87b3941e03425584305e0ef4ae1192b46d7dec6e862c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9e382d7277abd08b7c86b997ab17f6be277b98e29d22ca6add6b14ebc8b132f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2012-02-10T21:03:11Z",
    "title_canon_sha256": "ccff92bc2b0ddff0ef17a37ab31176e17be168c0c40a9fc287980bf20f0ca96e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2369",
    "kind": "arxiv",
    "version": 1
  }
}