Pith Number

pith:CPFKJ56I

pith:2013:CPFKJ56IXX3RR2KP46RR5WP4IT

not attested not anchored not stored refs pending

Pentagram Spirals

Richard Evan Schwartz

arxiv:1304.5708 v3 · 2013-04-21 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPFKJ56IXX3RR2KP46RR5WP4IT}

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	2026-05-18T03:18:05.997867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13caa4f7c8bdf718e94fe7a31ed9fc44da95d0d10ab3dcbb06d1d1d7e1bd46e1

Aliases

arxiv: 1304.5708 · arxiv_version: 1304.5708v3 · doi: 10.48550/arxiv.1304.5708 · pith_short_12: CPFKJ56IXX3R · pith_short_16: CPFKJ56IXX3RR2KP · pith_short_8: CPFKJ56I

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/CPFKJ56IXX3RR2KP46RR5WP4IT \
  | 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: 13caa4f7c8bdf718e94fe7a31ed9fc44da95d0d10ab3dcbb06d1d1d7e1bd46e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d70a991eb85e51c4d32e0a440a6f6f41decd8ecc7dea20c4f62e66f799ef427f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-04-21T08:59:03Z",
    "title_canon_sha256": "b74f0f40081f5cdd295b873d485ec031440b2a78fda601ed138c2544678b288a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5708",
    "kind": "arxiv",
    "version": 3
  }
}