Pith Number

pith:7X2NTWCT

pith:2002:7X2NTWCTEF27SKGR7HFGMDMZUU

not attested not anchored not stored refs pending

Unpolarized radiative cylindrical spacetimes: Trapped surfaces and quasilocal energy

Sergio M. C. V. Goncalves

arxiv:gr-qc/0212125 v1 · 2002-12-30 · 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{7X2NTWCTEF27SKGR7HFGMDMZUU}

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	2026-05-18T02:37:30.553921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdf4d9d8532175f928d1f9ca660d99a53b0021dd3580b7a47b797b0bf3b33268

Aliases

arxiv: gr-qc/0212125 · arxiv_version: gr-qc/0212125v1 · doi: 10.48550/arxiv.gr-qc/0212125 · pith_short_12: 7X2NTWCTEF27 · pith_short_16: 7X2NTWCTEF27SKGR · pith_short_8: 7X2NTWCT

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/7X2NTWCTEF27SKGR7HFGMDMZUU \
  | 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: fdf4d9d8532175f928d1f9ca660d99a53b0021dd3580b7a47b797b0bf3b33268

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ca3b54fb064a0f3a754f646f05cb0b6d51c1091f083244a3d03e49589af1ba5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-12-30T18:02:02Z",
    "title_canon_sha256": "1959bb26af890e63bb919ff72b61ab7e41494cdcba76614ae591a2c843ea2fb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0212125",
    "kind": "arxiv",
    "version": 1
  }
}