Pith Number

pith:I3BQOPKA

pith:2018:I3BQOPKAQ4STNEZIFWV25JG7PS

not attested not anchored not stored refs pending

Possibility of Identifying Matter around Rotating Black Hole with Black Hole Shadow

Jiancheng Wang, Xian Hou, Zhaoyi Xu

arxiv:1806.09415 v1 · 2018-06-25 · 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{I3BQOPKAQ4STNEZIFWV25JG7PS}

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	2026-05-18T00:01:58.924983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46c3073d4087253693282dabaea4df7c8f51b3544e84e86ed2d956d4231b5467

Aliases

arxiv: 1806.09415 · arxiv_version: 1806.09415v1 · doi: 10.48550/arxiv.1806.09415 · pith_short_12: I3BQOPKAQ4ST · pith_short_16: I3BQOPKAQ4STNEZI · pith_short_8: I3BQOPKA

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/I3BQOPKAQ4STNEZIFWV25JG7PS \
  | 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: 46c3073d4087253693282dabaea4df7c8f51b3544e84e86ed2d956d4231b5467

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77fb5898466bd2ca8f069c8f0273f461984cdcb39f3de700f48bcd9861a0739f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-06-25T12:26:01Z",
    "title_canon_sha256": "f7ace2b759d51e4f7a82a31aca4110f62b35b281fff39d9b2bf33bcf631e74ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09415",
    "kind": "arxiv",
    "version": 1
  }
}