Pith Number

pith:3Z77WBFY

pith:2013:3Z77WBFY2ULZQKA232ERCVIOSZ

not attested not anchored not stored refs pending

How Planners Deal with Uncomfortable Knowledge: The Dubious Ethics of the American Planning Association

Bent Flyvbjerg

arxiv:1303.7405 v1 · 2013-03-28 · q-fin.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3Z77WBFY2ULZQKA232ERCVIOSZ}

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	2026-05-18T03:29:28.513492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de7ffb04b8d51798281ade8911550e964825e4f86c2df1c6c3e9e3de4b8aa4cb

Aliases

arxiv: 1303.7405 · arxiv_version: 1303.7405v1 · doi: 10.48550/arxiv.1303.7405 · pith_short_12: 3Z77WBFY2ULZ · pith_short_16: 3Z77WBFY2ULZQKA2 · pith_short_8: 3Z77WBFY

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/3Z77WBFY2ULZQKA232ERCVIOSZ \
  | 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: de7ffb04b8d51798281ade8911550e964825e4f86c2df1c6c3e9e3de4b8aa4cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07a62beb48229e5599812da89342910639926a6c9c85d5d9e3305fb6d6c64c61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.GN",
    "submitted_at": "2013-03-28T11:04:53Z",
    "title_canon_sha256": "1353c89db809ad67ab686474bf5a6c0d4836d4b6c25f43769535507ffc9719a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.7405",
    "kind": "arxiv",
    "version": 1
  }
}