Pith Number

pith:WPZNA3O2

pith:2013:WPZNA3O2WVCAALX7SPULSHGQRD

not attested not anchored not stored refs pending

The Fate of the Quantum

Gerard 't Hooft

arxiv:1308.1007 v1 · 2013-08-05 · quant-ph · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WPZNA3O2WVCAALX7SPULSHGQRD}

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	2026-05-18T03:16:40.954199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3f2d06ddab544002eff93e8b91cd088eef01e68e1e7f6b4b84b133a4f9c8db7

Aliases

arxiv: 1308.1007 · arxiv_version: 1308.1007v1 · doi: 10.48550/arxiv.1308.1007 · pith_short_12: WPZNA3O2WVCA · pith_short_16: WPZNA3O2WVCAALX7 · pith_short_8: WPZNA3O2

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/WPZNA3O2WVCAALX7SPULSHGQRD \
  | 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: b3f2d06ddab544002eff93e8b91cd088eef01e68e1e7f6b4b84b133a4f9c8db7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83eceb23f1d6f4a5958b64190ddc4a690d64d50a42e015a8ec72e3722db57619",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-08-05T15:23:37Z",
    "title_canon_sha256": "82ac8c8ad51bc8ca55dda02572e07de37d38a78a7cafb3a77ec4fbcd79e305e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1007",
    "kind": "arxiv",
    "version": 1
  }
}