Pith Number

pith:EFNMCLMP

pith:1995:EFNMCLMPS37TVO3CJRGPYFQHN6

not attested not anchored not stored refs pending

Topology Change and the Propagation of Massless Fields

Chemistry, Jonathan Gratus, Lancaster University, Lancs LA1 4YB, Robin W Tucker (School of Physics, UK)

arxiv:gr-qc/9502016 v2 · 1995-02-07 · 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{EFNMCLMPS37TVO3CJRGPYFQHN6}

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	2026-05-18T01:06:45.053554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

215ac12d8f96ff3abb624c4cfc16076fa872b82ccd948f4ba38cb8a35677f69a

Aliases

arxiv: gr-qc/9502016 · arxiv_version: gr-qc/9502016v2 · doi: 10.48550/arxiv.gr-qc/9502016 · pith_short_12: EFNMCLMPS37T · pith_short_16: EFNMCLMPS37TVO3C · pith_short_8: EFNMCLMP

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/EFNMCLMPS37TVO3CJRGPYFQHN6 \
  | 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: 215ac12d8f96ff3abb624c4cfc16076fa872b82ccd948f4ba38cb8a35677f69a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "292cd72b2dc4d0c21ac6d2ee5d34da5c22ef134987258777f192921d53f0f07e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1995-02-07T21:43:43Z",
    "title_canon_sha256": "233896db31ef47f2b2c5c65a28a57db2f5ba8bea6ff045f908dd92f03dc44494"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9502016",
    "kind": "arxiv",
    "version": 2
  }
}