Pith Number

pith:IZVJ25OQ

pith:2018:IZVJ25OQDDPEV4C4VCWEKF5G6E

not attested not anchored not stored refs pending

Surrounded Vaidya black holes: apparent horizon properties

F. Darabi, Y. Heydarzade

arxiv:1805.01022 v1 · 2018-05-02 · 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{IZVJ25OQDDPEV4C4VCWEKF5G6E}

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	2026-05-18T00:16:52.852468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

466a9d75d018de4af05ca8ac4517a6f126303ee55bb582fcdab8f6654465dcd1

Aliases

arxiv: 1805.01022 · arxiv_version: 1805.01022v1 · doi: 10.48550/arxiv.1805.01022 · pith_short_12: IZVJ25OQDDPE · pith_short_16: IZVJ25OQDDPEV4C4 · pith_short_8: IZVJ25OQ

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/IZVJ25OQDDPEV4C4VCWEKF5G6E \
  | 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: 466a9d75d018de4af05ca8ac4517a6f126303ee55bb582fcdab8f6654465dcd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d60a043ff18917e68994e3cde054db2fbf16d8752e50f2b24977382d7276ed66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-02T21:06:02Z",
    "title_canon_sha256": "b58b9075821e23c740195529c0df73f78724cc2ca3d5039c41427c9e94d2a71d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01022",
    "kind": "arxiv",
    "version": 1
  }
}