Pith Number

pith:5Q2TALJF

pith:2019:5Q2TALJFBUW7VNF7MGKNVXYHEK

not attested not anchored not stored refs pending

Quantum gravity from general relativity

Christian Wuthrich

arxiv:1902.02099 v1 · 2019-02-06 · physics.hist-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5Q2TALJFBUW7VNF7MGKNVXYHEK}

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	2026-05-17T23:54:37.882959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec35302d250d2dfab4bf6194dadf0722ba2337e0ac5a0031f0954c04ea724af4

Aliases

arxiv: 1902.02099 · arxiv_version: 1902.02099v1 · doi: 10.48550/arxiv.1902.02099 · pith_short_12: 5Q2TALJFBUW7 · pith_short_16: 5Q2TALJFBUW7VNF7 · pith_short_8: 5Q2TALJF

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/5Q2TALJFBUW7VNF7MGKNVXYHEK \
  | 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: ec35302d250d2dfab4bf6194dadf0722ba2337e0ac5a0031f0954c04ea724af4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81a565839c86e554081b8adbf3c5c62e62450559f2981bab2893e37ed4ebfb14",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2019-02-06T10:29:35Z",
    "title_canon_sha256": "1b025328b4a4b855a254b6e10d55ce959bee68440b5c055871c4217155940749"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02099",
    "kind": "arxiv",
    "version": 1
  }
}