Pith Number

pith:7JAEQ3G2

pith:2009:7JAEQ3G2JYCXQIMTOZZQN6UHNZ

not attested not anchored not stored refs pending

Confinement of test particles in warped spacetimes

Hemwati Nandan, Sayan Kar, Suman Ghosh

arxiv:0904.2321 v3 · 2009-04-15 · 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{7JAEQ3G2JYCXQIMTOZZQN6UHNZ}

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	2026-05-18T02:34:59.717525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa40486cda4e05782193767306fa876e59b01f0b9d0d303e627ad6c378fdf485

Aliases

arxiv: 0904.2321 · arxiv_version: 0904.2321v3 · doi: 10.48550/arxiv.0904.2321 · pith_short_12: 7JAEQ3G2JYCX · pith_short_16: 7JAEQ3G2JYCXQIMT · pith_short_8: 7JAEQ3G2

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/7JAEQ3G2JYCXQIMTOZZQN6UHNZ \
  | 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: fa40486cda4e05782193767306fa876e59b01f0b9d0d303e627ad6c378fdf485

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "057dffce54a45eb3b05b25845374ff815932b9fb44fb36d885cb7740979f2a68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-04-15T05:53:09Z",
    "title_canon_sha256": "e2f828ae65e248fb512be615ae31cf04468c06dd84212e6c2c3dc87e75fb8ffc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2321",
    "kind": "arxiv",
    "version": 3
  }
}