Pith Number

pith:SRE3VWNX

pith:2018:SRE3VWNX2XV5KBJ5WECUP547XT

not attested not anchored not stored refs pending

Structured objects in quantum gravity. The external field approximation

Giorgio Papini

arxiv:1801.03976 v1 · 2018-01-11 · 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{SRE3VWNX2XV5KBJ5WECUP547XT}

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	2026-05-18T00:10:03.204359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9449bad9b7d5ebd5053db10547f79fbce3062237c4b6226791984f78fad8f234

Aliases

arxiv: 1801.03976 · arxiv_version: 1801.03976v1 · doi: 10.48550/arxiv.1801.03976 · pith_short_12: SRE3VWNX2XV5 · pith_short_16: SRE3VWNX2XV5KBJ5 · pith_short_8: SRE3VWNX

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/SRE3VWNX2XV5KBJ5WECUP547XT \
  | 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: 9449bad9b7d5ebd5053db10547f79fbce3062237c4b6226791984f78fad8f234

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0e671b94237888cbc7b0e4a415dcf3a31780fca64e66d69359f6e8c1936c4e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-01-11T20:14:43Z",
    "title_canon_sha256": "597ebed94ec60415ff478e62d018d2e2b6429910e58dc580e7e3c07e8b1aaed8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03976",
    "kind": "arxiv",
    "version": 1
  }
}