Pith Number

pith:HGHRLTK6

pith:2008:HGHRLTK6H2YLECRETCREUCSJRH

not attested not anchored not stored refs pending

Freedom in Nature

Petr Hajicek

arxiv:0803.1367 v3 · 2008-03-10 · physics.hist-ph · physics.gen-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{HGHRLTK6H2YLECRETCREUCSJRH}

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	2026-05-18T02:16:00.393171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

398f15cd5e3eb0b20a2498a24a0a4989f406d6aa6c6af9b5834cbae351124e14

Aliases

arxiv: 0803.1367 · arxiv_version: 0803.1367v3 · doi: 10.48550/arxiv.0803.1367 · pith_short_12: HGHRLTK6H2YL · pith_short_16: HGHRLTK6H2YLECRE · pith_short_8: HGHRLTK6

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/HGHRLTK6H2YLECRETCREUCSJRH \
  | 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: 398f15cd5e3eb0b20a2498a24a0a4989f406d6aa6c6af9b5834cbae351124e14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bf0efa97eee52a466967e9559d085a15918e0efa4846c4a7f079ae025c3c2e9",
    "cross_cats_sorted": [
      "physics.gen-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2008-03-10T09:04:03Z",
    "title_canon_sha256": "b59ba94da87a564c55bc028f8a894b55b9becd35a484c5e66ab7fdef600cd2ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.1367",
    "kind": "arxiv",
    "version": 3
  }
}