Pith Number

pith:PT6AL6KJ

pith:2011:PT6AL6KJKBXZULQ5A3KKG2K72K

not attested not anchored not stored refs pending

The finite-state character of physical dynamics

Norman Margolus

arxiv:1109.4994 v22 · 2011-09-23 · quant-ph · cs.IT · gr-qc · hep-th · math-ph · math.IT · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PT6AL6KJKBXZULQ5A3KKG2K72K}

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	2026-05-18T00:46:02.965630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cfc05f949506f9a2e1d06d4a3695fd28051d5093a2bed437b1d5da14a543b7c

Aliases

arxiv: 1109.4994 · arxiv_version: 1109.4994v22 · doi: 10.48550/arxiv.1109.4994 · pith_short_12: PT6AL6KJKBXZ · pith_short_16: PT6AL6KJKBXZULQ5 · pith_short_8: PT6AL6KJ

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/PT6AL6KJKBXZULQ5A3KKG2K72K \
  | 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: 7cfc05f949506f9a2e1d06d4a3695fd28051d5093a2bed437b1d5da14a543b7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41618077b0131b3e1330d6cfbb75e44299ec3d6af9e8e157132f5ed90daac029",
    "cross_cats_sorted": [
      "cs.IT",
      "gr-qc",
      "hep-th",
      "math-ph",
      "math.IT",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-09-23T03:31:41Z",
    "title_canon_sha256": "c5d6a4ffec51c11f58b177f9f92a0bebb38f40bae12e57d68c6a3fba0f0b6900"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4994",
    "kind": "arxiv",
    "version": 22
  }
}