Pith Number

pith:HHJDV3LJ

pith:2014:HHJDV3LJO5UZUDNHCXXNSPS4CZ

not attested not anchored not stored refs pending

Nowcasting economic and social data: when and why search engine data fails, an illustration using Google Flu Trends

Paul Ormerod, R Alexander Bentley, Rickard Nyman

arxiv:1408.0699 v1 · 2014-08-01 · physics.soc-ph · cs.CY · 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{HHJDV3LJO5UZUDNHCXXNSPS4CZ}

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	2026-05-18T02:45:56.458202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39d23aed6977699a0da715eed93e5c165ca80fae65617558ac3fff1a8cf5526d

Aliases

arxiv: 1408.0699 · arxiv_version: 1408.0699v1 · doi: 10.48550/arxiv.1408.0699 · pith_short_12: HHJDV3LJO5UZ · pith_short_16: HHJDV3LJO5UZUDNH · pith_short_8: HHJDV3LJ

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/HHJDV3LJO5UZUDNHCXXNSPS4CZ \
  | 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: 39d23aed6977699a0da715eed93e5c165ca80fae65617558ac3fff1a8cf5526d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f0b80cd50867ff7b42ffda896bb1c279b379c9be421bb5c7e38081af98691fd",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2014-08-01T11:21:09Z",
    "title_canon_sha256": "bbb2fe5ff471d1095358e39e0fd60892145e4cd3d81842d225430af29c2aa3b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0699",
    "kind": "arxiv",
    "version": 1
  }
}