Pith Number

pith:TIRVRQVN

pith:2012:TIRVRQVNBW2XXI6S76B62UPLLN

not attested not anchored not stored refs pending

Causality violation in plane wave spacetimes

Debojit Sarma, Faiz Uddin Ahmed, Mahadev Patgiri

arxiv:1203.6173 v1 · 2012-03-28 · 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{TIRVRQVNBW2XXI6S76B62UPLLN}

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	2026-05-18T03:59:03.948303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a2358c2ad0db57ba3d2ff83ed51eb5b7cc3aad68fb32a9d48a798c257ca1d3a

Aliases

arxiv: 1203.6173 · arxiv_version: 1203.6173v1 · doi: 10.48550/arxiv.1203.6173 · pith_short_12: TIRVRQVNBW2X · pith_short_16: TIRVRQVNBW2XXI6S · pith_short_8: TIRVRQVN

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/TIRVRQVNBW2XXI6S76B62UPLLN \
  | 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: 9a2358c2ad0db57ba3d2ff83ed51eb5b7cc3aad68fb32a9d48a798c257ca1d3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80fc24f1735dff8e325bf11d433b4bfb055928eeb39f7a7c741ce82dc3cf9c48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-03-28T06:20:28Z",
    "title_canon_sha256": "6eb107900d9c150bb201e2973f7e7ed42c385a88e6619ed3e8a86d2facf0f732"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6173",
    "kind": "arxiv",
    "version": 1
  }
}