Pith Number

pith:R6RX5WVC

pith:2015:R6RX5WVCPQIPENEXCCYYFWWIKI

not attested not anchored not stored refs pending

A naturalist account of the limited, and hence reasonable, effectiveness of mathematics in physics

Lee Smolin

arxiv:1506.03733 v1 · 2015-06-11 · physics.hist-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{R6RX5WVCPQIPENEXCCYYFWWIKI}

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	2026-05-18T01:53:03.406019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fa37edaa27c10f2349710b182dac852019b15158966bada04d69700f6e6890d

Aliases

arxiv: 1506.03733 · arxiv_version: 1506.03733v1 · doi: 10.48550/arxiv.1506.03733 · pith_short_12: R6RX5WVCPQIP · pith_short_16: R6RX5WVCPQIPENEX · pith_short_8: R6RX5WVC

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/R6RX5WVCPQIPENEXCCYYFWWIKI \
  | 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: 8fa37edaa27c10f2349710b182dac852019b15158966bada04d69700f6e6890d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a2496265cd11525d9d53b41272a253cc6d1a9dad2802cfc6336104dda767646",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2015-06-11T16:15:36Z",
    "title_canon_sha256": "a4307872ccbddb1beeaf92008e5832466269ea051c0ccb492074c81d71ada131"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.03733",
    "kind": "arxiv",
    "version": 1
  }
}