Pith Number

pith:GAN533K6

pith:2013:GAN533K6ZNPOGZJ5BVV4IXANTM

not attested not anchored not stored refs pending

Effective Degrees of Freedom: A Flawed Metaphor

Lucas Janson, Trevor Hastie, William Fithian

arxiv:1312.7851 v3 · 2013-12-30 · stat.OT · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GAN533K6ZNPOGZJ5BVV4IXANTM}

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	2026-05-18T00:53:21.320203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

301bdded5ecb5ee3653d0d6bc45c0d9b118d860ecdde2f81e0b7ced521e6cace

Aliases

arxiv: 1312.7851 · arxiv_version: 1312.7851v3 · doi: 10.48550/arxiv.1312.7851 · pith_short_12: GAN533K6ZNPO · pith_short_16: GAN533K6ZNPOGZJ5 · pith_short_8: GAN533K6

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/GAN533K6ZNPOGZJ5BVV4IXANTM \
  | 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: 301bdded5ecb5ee3653d0d6bc45c0d9b118d860ecdde2f81e0b7ced521e6cace

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bcfc0705703927f893d22dde149f9a8717d0cc08503ad9eea47de1d615ae921",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.OT",
    "submitted_at": "2013-12-30T20:21:15Z",
    "title_canon_sha256": "a9c6286b1226d88daf5222cf9ac0884e1753d19cef572e3b5d0d76b3da743950"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7851",
    "kind": "arxiv",
    "version": 3
  }
}