Pith Number

pith:D7YEYE73

pith:2015:D7YEYE73ZI7AKIIXTGNLN3ILTV

not attested not anchored not stored refs pending

Classification of the static and asymptotically flat Einstein-Maxwell-dilaton spacetimes with a photon sphere

Boian Lazov, Stoytcho Yazadjiev

arxiv:1510.04022 v1 · 2015-10-14 · gr-qc · astro-ph.HE · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7YEYE73ZI7AKIIXTGNLN3ILTV}

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	2026-05-18T01:17:18.590877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ff04c13fbca3e052117999ab6ed0b9d4e7fa93f2cffd88ef1c34a91052dc93d

Aliases

arxiv: 1510.04022 · arxiv_version: 1510.04022v1 · doi: 10.48550/arxiv.1510.04022 · pith_short_12: D7YEYE73ZI7A · pith_short_16: D7YEYE73ZI7AKIIX · pith_short_8: D7YEYE73

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/D7YEYE73ZI7AKIIXTGNLN3ILTV \
  | 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: 1ff04c13fbca3e052117999ab6ed0b9d4e7fa93f2cffd88ef1c34a91052dc93d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a94ea2695a40d0dd6ff0e071fb31a1af99783bb9c2eea6ba95a6b0bb38c1e67",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-10-14T09:48:08Z",
    "title_canon_sha256": "901b0c77837dc0bd17fd831990bfee820781daf39ae72773b4176af66afb3a29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04022",
    "kind": "arxiv",
    "version": 1
  }
}