Pith Number

pith:TLNLK5ZA

pith:2009:TLNLK5ZAYQW546CFP3ETUWVZPB

not attested not anchored not stored refs pending

The Role of Design Complexity in Technology Improvement

James McNerney, J. Doyne Farmer, Jessika E. Trancik, Sid Redner

arxiv:0907.0036 v2 · 2009-06-30 · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TLNLK5ZAYQW546CFP3ETUWVZPB}

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	2026-05-18T02:46:39.746718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9adab57720c42dde78457ec93a5ab9785b39f22ca140fa239b50ccef685e3ab8

Aliases

arxiv: 0907.0036 · arxiv_version: 0907.0036v2 · doi: 10.48550/arxiv.0907.0036 · pith_short_12: TLNLK5ZAYQW5 · pith_short_16: TLNLK5ZAYQW546CF · pith_short_8: TLNLK5ZA

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/TLNLK5ZAYQW546CFP3ETUWVZPB \
  | 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: 9adab57720c42dde78457ec93a5ab9785b39f22ca140fa239b50ccef685e3ab8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bd5596f57cce1a973df5b715211a1305e49faea74d1cc4bd61e1bbc2938ca9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-06-30T22:58:51Z",
    "title_canon_sha256": "56689d933656b892f4f72ee8a3b81305802c37b5b5d0b99a4bf44d4c6596db1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0036",
    "kind": "arxiv",
    "version": 2
  }
}