Pith Number

pith:DKN2HNAP

pith:2017:DKN2HNAP6CBRM64EMZIDLVY4F3

not attested not anchored not stored refs pending

Constraints on physical reality arising from a formalization of knowledge

David Wolpert

arxiv:1711.03499 v3 · 2017-11-09 · physics.hist-ph · cs.LO · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DKN2HNAP6CBRM64EMZIDLVY4F3}

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	2026-05-18T00:12:11.033613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a9ba3b40ff083167b84665035d71c2ec7cb931024eb69f3d7827497efafd3e3

Aliases

arxiv: 1711.03499 · arxiv_version: 1711.03499v3 · doi: 10.48550/arxiv.1711.03499 · pith_short_12: DKN2HNAP6CBR · pith_short_16: DKN2HNAP6CBRM64E · pith_short_8: DKN2HNAP

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/DKN2HNAP6CBRM64EMZIDLVY4F3 \
  | 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: 1a9ba3b40ff083167b84665035d71c2ec7cb931024eb69f3d7827497efafd3e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e639c30c859748539052f6a32c0f0f8dad01bc22bf9150a4a16c152cf0831599",
    "cross_cats_sorted": [
      "cs.LO",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2017-11-09T17:53:28Z",
    "title_canon_sha256": "44847da7c99b2555f5cb0b05bdd176a85ee96a51c96fd46ac35af397b62128e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.03499",
    "kind": "arxiv",
    "version": 3
  }
}