Pith Number

pith:42WDXP6P

pith:2012:42WDXP6PPXF4HZJPRI7N3R7QYT

not attested not anchored not stored refs pending

Towards a quantum universe

Jaume Gin\'e

arxiv:1201.1813 v1 · 2012-01-05 · 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{42WDXP6PPXF4HZJPRI7N3R7QYT}

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	2026-05-18T01:58:54.018588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6ac3bbfcf7dcbc3e52f8a3eddc7f0c4cda35630f3d2dd08239ac37268ed4bc2

Aliases

arxiv: 1201.1813 · arxiv_version: 1201.1813v1 · doi: 10.48550/arxiv.1201.1813 · pith_short_12: 42WDXP6PPXF4 · pith_short_16: 42WDXP6PPXF4HZJP · pith_short_8: 42WDXP6P

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/42WDXP6PPXF4HZJPRI7N3R7QYT \
  | 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: e6ac3bbfcf7dcbc3e52f8a3eddc7f0c4cda35630f3d2dd08239ac37268ed4bc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fc24547da6aa6d3b604e733c8292f1fa5e56912fa3d9ad62132bb16c942e647",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2012-01-05T15:49:18Z",
    "title_canon_sha256": "1af1bb7fb1fd76e4cf3b1b326d660b1e8b14f1745c393771130718de476a61ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1813",
    "kind": "arxiv",
    "version": 1
  }
}