Pith Number

pith:L53RXXR7

pith:2017:L53RXXR73G5VSFMDMJWCL55DPZ

not attested not anchored not stored refs pending

Why we need to quantise everything, including gravity

Chiara Marletto, Vlatko Vedral

arxiv:1703.04325 v1 · 2017-03-13 · quant-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{L53RXXR73G5VSFMDMJWCL55DPZ}

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	2026-05-18T00:48:49.073187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f771bde3fd9bb591583626c25f7a37e658231aed09b15f708734cae2e9e0eab

Aliases

arxiv: 1703.04325 · arxiv_version: 1703.04325v1 · doi: 10.48550/arxiv.1703.04325 · pith_short_12: L53RXXR73G5V · pith_short_16: L53RXXR73G5VSFMD · pith_short_8: L53RXXR7

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/L53RXXR73G5VSFMDMJWCL55DPZ \
  | 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: 5f771bde3fd9bb591583626c25f7a37e658231aed09b15f708734cae2e9e0eab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b717252a12559105014661d5fc8456ff28628fb94b504e15ad31b0de72551560",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-03-13T10:45:54Z",
    "title_canon_sha256": "086672ba30dd7401792330bb38e672be1bf4360d4d5903c2101b96c22c86127a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.04325",
    "kind": "arxiv",
    "version": 1
  }
}