Pith Number

pith:YTOONTRF

pith:2018:YTOONTRFVJZWFA62YJVQB5F75A

not attested not anchored not stored refs pending

Revisiting the shadow of a black hole in the presence of a plasma

Dao-jun Liu, Yang Huang, Yi-Ping Dong

arxiv:1807.06268 v1 · 2018-07-17 · 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{YTOONTRFVJZWFA62YJVQB5F75A}

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	2026-05-18T00:10:33.541246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4dce6ce25aa736283dac26b00f4bfe81c3c58c3747f9a76687436429f080899

Aliases

arxiv: 1807.06268 · arxiv_version: 1807.06268v1 · doi: 10.48550/arxiv.1807.06268 · pith_short_12: YTOONTRFVJZW · pith_short_16: YTOONTRFVJZWFA62 · pith_short_8: YTOONTRF

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/YTOONTRFVJZWFA62YJVQB5F75A \
  | 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: c4dce6ce25aa736283dac26b00f4bfe81c3c58c3747f9a76687436429f080899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecd0f8567f126bbc7fd8012c875616948583c3f5d9779095e413d723cd83b5e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-07-17T08:06:30Z",
    "title_canon_sha256": "8c1e879868d4b0c1f820a04b16fa34e28ef3480454c2b273a834a1d68bdb575a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06268",
    "kind": "arxiv",
    "version": 1
  }
}