Pith Number

pith:ANGYUIYI

pith:2010:ANGYUIYITT6P7JGRLPFXG7Z4BF

not attested not anchored not stored refs pending

The black hole in NGC 1313 X-2

Alessandro Patruno, Luca Zampieri

arxiv:1011.2038 v1 · 2010-11-09 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ANGYUIYITT6P7JGRLPFXG7Z4BF}

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	2026-05-18T02:04:49.904344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

034d8a23089cfcffa4d15bcb737f3c094e4e7b3aa12dd341cb6b77493c36fcbf

Aliases

arxiv: 1011.2038 · arxiv_version: 1011.2038v1 · doi: 10.48550/arxiv.1011.2038 · pith_short_12: ANGYUIYITT6P · pith_short_16: ANGYUIYITT6P7JGR · pith_short_8: ANGYUIYI

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/ANGYUIYITT6P7JGRLPFXG7Z4BF \
  | 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: 034d8a23089cfcffa4d15bcb737f3c094e4e7b3aa12dd341cb6b77493c36fcbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3b87bd88fe12aa8806987d71e47bf3089b2c3ace2a160bf3886ca7f16d61065",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-11-09T11:00:42Z",
    "title_canon_sha256": "3a924cf255e577c18d8707489f87b661e1d41e64b8cc61a42a4d5c4e9d49a7a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2038",
    "kind": "arxiv",
    "version": 1
  }
}