Pith Number

pith:ZL2FQS5R

pith:2014:ZL2FQS5RFJI32JNFLKFINTFCGE

not attested not anchored not stored refs pending

C metric: the equatorial plane and Fermi coordinates

Andrea Geralico, Christian Cherubini, Donato Bini, Simonetta Filippi

arxiv:1408.4277 v1 · 2014-08-19 · 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{ZL2FQS5RFJI32JNFLKFINTFCGE}

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	2026-05-18T01:42:17.499915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caf4584bb12a51bd25a55a8a86cca2311e35e27a7d3226fddddd878f727dd8a5

Aliases

arxiv: 1408.4277 · arxiv_version: 1408.4277v1 · doi: 10.48550/arxiv.1408.4277 · pith_short_12: ZL2FQS5RFJI3 · pith_short_16: ZL2FQS5RFJI32JNF · pith_short_8: ZL2FQS5R

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/ZL2FQS5RFJI32JNFLKFINTFCGE \
  | 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: caf4584bb12a51bd25a55a8a86cca2311e35e27a7d3226fddddd878f727dd8a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a2c2f872c8ea3573c4a773732194c6225da4a4a9a4bf9ee560d2f5439492bf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-08-19T10:08:05Z",
    "title_canon_sha256": "caeaef8eaaf0169a1e476e3a28396cd58dfb371fbccaf1b3fd9fb3ee31f95816"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4277",
    "kind": "arxiv",
    "version": 1
  }
}