Pith Number

pith:SRWZXCMU

pith:2013:SRWZXCMUMOPE3IFR3C2IJQOJFR

not attested not anchored not stored refs pending

Astrophysics of Bertrand Space-times

Dipanjan Dey, Kaushik Bhattacharya, Tapobrata Sarkar

arxiv:1310.0131 v1 · 2013-10-01 · astro-ph.GA · 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{SRWZXCMUMOPE3IFR3C2IJQOJFR}

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	2026-05-18T03:07:22.559527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

946d9b8994639e4da0b1d8b484c1c92c623308ae2ab031d11d23f36542d03940

Aliases

arxiv: 1310.0131 · arxiv_version: 1310.0131v1 · doi: 10.48550/arxiv.1310.0131 · pith_short_12: SRWZXCMUMOPE · pith_short_16: SRWZXCMUMOPE3IFR · pith_short_8: SRWZXCMU

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/SRWZXCMUMOPE3IFR3C2IJQOJFR \
  | 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: 946d9b8994639e4da0b1d8b484c1c92c623308ae2ab031d11d23f36542d03940

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bacdfda54f5592baa070fbc35f3f517b5b78824d4964207704a95e7beb45340",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-10-01T03:29:24Z",
    "title_canon_sha256": "fb693f0c266f76fc76db89543649beab6dd9cd1bdfcc570aadeb6950b5f2943b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.0131",
    "kind": "arxiv",
    "version": 1
  }
}