Pith Number

pith:YR3I4I5W

pith:2007:YR3I4I5WMICGQDZHSNFHSPVZNF

not attested not anchored not stored refs pending

Physical unknowables

Karl Svozil

arxiv:physics/0701163 v4 · 2007-01-15 · 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{YR3I4I5WMICGQDZHSNFHSPVZNF}

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	2026-05-18T04:17:04.829482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4768e23b66204680f27934a793eb9696c3a303ba34d7bf13e49611ab1bd754a

Aliases

arxiv: physics/0701163 · arxiv_version: physics/0701163v4 · doi: 10.48550/arxiv.physics/0701163 · pith_short_12: YR3I4I5WMICG · pith_short_16: YR3I4I5WMICGQDZH · pith_short_8: YR3I4I5W

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/YR3I4I5WMICGQDZHSNFHSPVZNF \
  | 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: c4768e23b66204680f27934a793eb9696c3a303ba34d7bf13e49611ab1bd754a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e355acc33d6d6e8f0f9a3517aa1fc6174aa65afc9b217ecb99917d870624c74e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2007-01-15T10:26:34Z",
    "title_canon_sha256": "a1023f3979679335c182f0e0cacf1dfb89cbae07b4395888a6c86e8c0223bf20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0701163",
    "kind": "arxiv",
    "version": 4
  }
}