Pith Number

pith:HMEI6DIG

pith:2013:HMEI6DIGJSPCQL7RVY266QJAT5

not attested not anchored not stored refs pending

A Brief History of Curvature

Robert R. Caldwell, Steven S. Gubser

arxiv:1302.1201 v1 · 2013-02-05 · astro-ph.CO · gr-qc · hep-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{HMEI6DIGJSPCQL7RVY266QJAT5}

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	2026-05-18T03:29:50.082076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b088f0d064c9e282ff1ae35ef41209f432eea80a0273969f6a5b1880bb37d3f

Aliases

arxiv: 1302.1201 · arxiv_version: 1302.1201v1 · doi: 10.48550/arxiv.1302.1201 · pith_short_12: HMEI6DIGJSPC · pith_short_16: HMEI6DIGJSPCQL7R · pith_short_8: HMEI6DIG

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/HMEI6DIGJSPCQL7RVY266QJAT5 \
  | 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: 3b088f0d064c9e282ff1ae35ef41209f432eea80a0273969f6a5b1880bb37d3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da5fba68711891c5bab338bf48a1e9bf584f9b99134d880a80cd750a26cec562",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-02-05T21:00:03Z",
    "title_canon_sha256": "c12f01a7077606963517e18af336d567c78a64d3ccbcd87a386d83219e02741b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1201",
    "kind": "arxiv",
    "version": 1
  }
}