Pith Number

pith:DGFW7ZY7

pith:2013:DGFW7ZY77ZAX7XJYPPSME5GAGA

not attested not anchored not stored refs pending

Optimisation of fractal spaceframes under gentle compressive load

Daniel Rayneau-Kirkhope, Robert Farr, Yong Mao

arxiv:1312.4729 v1 · 2013-12-17 · physics.class-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{DGFW7ZY77ZAX7XJYPPSME5GAGA}

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	2026-05-18T03:04:23.264866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

198b6fe71ffe417fdd387be4c274c0301788384d066d5224747e25f761cd1418

Aliases

arxiv: 1312.4729 · arxiv_version: 1312.4729v1 · doi: 10.48550/arxiv.1312.4729 · pith_short_12: DGFW7ZY77ZAX · pith_short_16: DGFW7ZY77ZAX7XJY · pith_short_8: DGFW7ZY7

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/DGFW7ZY77ZAX7XJYPPSME5GAGA \
  | 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: 198b6fe71ffe417fdd387be4c274c0301788384d066d5224747e25f761cd1418

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "634a25623816e31c6af8537d469a4dba21d848fec8b966cf83299f3f2ed0775c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2013-12-17T11:47:05Z",
    "title_canon_sha256": "ecb8ba2b7c05712bb1b7013aceac6311f45deff92157664b6bf36cdb7919b18f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4729",
    "kind": "arxiv",
    "version": 1
  }
}