Pith Number

pith:ZWLJZSFI

pith:2017:ZWLJZSFIDIOSRDAPW6KYA7ZHOT

not attested not anchored not stored refs pending

Reference Class Forecasting for Hong Kong's Major Roadworks Projects

Bent Flyvbjerg, Chi-keung Hon, Wing Huen Fok

arxiv:1710.09419 v1 · 2017-10-03 · q-fin.GN · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZWLJZSFIDIOSRDAPW6KYA7ZHOT}

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	2026-05-18T00:31:59.421223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd969cc8a81a1d288c0fb795807f2774ea3590b4fb2e74eb13bf0bfc8e3d8602

Aliases

arxiv: 1710.09419 · arxiv_version: 1710.09419v1 · doi: 10.48550/arxiv.1710.09419 · pith_short_12: ZWLJZSFIDIOS · pith_short_16: ZWLJZSFIDIOSRDAP · pith_short_8: ZWLJZSFI

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/ZWLJZSFIDIOSRDAPW6KYA7ZHOT \
  | 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: cd969cc8a81a1d288c0fb795807f2774ea3590b4fb2e74eb13bf0bfc8e3d8602

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bac5a7bc46d2b7f8308cbcb4f75aa0ca073a914e2ce114e0f31bab36507fdc4e",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.GN",
    "submitted_at": "2017-10-03T13:37:40Z",
    "title_canon_sha256": "8865f385edecbb3f83dff90c374be5d4c8052e1ef025ecec3049b4e9b26b5f01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09419",
    "kind": "arxiv",
    "version": 1
  }
}