Pith Number

pith:JR6PTFFW

pith:2018:JR6PTFFWACQECDG6PAULKD2PUU

not attested not anchored not stored refs pending

Geometrical properties of trapped surfaces and apparent horizons

Abbas Sherif, Rituparno Goswami, Sunil D Maharaj

arxiv:1805.05684 v1 · 2018-05-15 · 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{JR6PTFFWACQECDG6PAULKD2PUU}

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	2026-05-18T00:15:59.871719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c7cf994b600a0410cde7828b50f4fa51ad3baff8e78ec13529ded4764b1aed9

Aliases

arxiv: 1805.05684 · arxiv_version: 1805.05684v1 · doi: 10.48550/arxiv.1805.05684 · pith_short_12: JR6PTFFWACQE · pith_short_16: JR6PTFFWACQECDG6 · pith_short_8: JR6PTFFW

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/JR6PTFFWACQECDG6PAULKD2PUU \
  | 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: 4c7cf994b600a0410cde7828b50f4fa51ad3baff8e78ec13529ded4764b1aed9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15ac7f339ed5d7d1a4efce110542b31107a54546961c78371eacaa8d1c8ea6c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-15T10:15:43Z",
    "title_canon_sha256": "bb2d2da054567e0b8a833b98f81b87066c585254624f8d574679db975321eac0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05684",
    "kind": "arxiv",
    "version": 1
  }
}