Pith Number

pith:MTT7S5OD

pith:2014:MTT7S5ODXPCU2JUB7HVVGRC7NY

not attested not anchored not stored refs pending

Observer-dependent optical properties of stationary axisymmetric spacetimes

Andrea Geralico, Donato Bini, Fernando de Felice

arxiv:1408.5487 v1 · 2014-08-23 · 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{MTT7S5ODXPCU2JUB7HVVGRC7NY}

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	2026-05-18T02:44:25.069307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64e7f975c3bbc54d2681f9eb53445f6e33a697c3004821ab9541b047a0607751

Aliases

arxiv: 1408.5487 · arxiv_version: 1408.5487v1 · doi: 10.48550/arxiv.1408.5487 · pith_short_12: MTT7S5ODXPCU · pith_short_16: MTT7S5ODXPCU2JUB · pith_short_8: MTT7S5OD

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/MTT7S5ODXPCU2JUB7HVVGRC7NY \
  | 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: 64e7f975c3bbc54d2681f9eb53445f6e33a697c3004821ab9541b047a0607751

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a63ef9a5136e10f18a8111cb2a4e7a5f013dbc88ec79c294927e9d4050c5100d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-08-23T10:40:33Z",
    "title_canon_sha256": "3d5bef3dc7988b4e6fe624974e46a3848772d3585cb4044bb4a535bd14f38649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5487",
    "kind": "arxiv",
    "version": 1
  }
}