Pith Number

pith:PRRGNZC4

pith:2022:PRRGNZC4GNVPVCSIQQNBZHAIAZ

not attested not anchored not stored refs pending

X-ray illuminated accretion discs and quasar microlensing disc sizes

E. Kammoun, I. E. Papadakis, M. Dovciak

arxiv:2207.12473 v2 · 2022-07-25 · 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{PRRGNZC4GNVPVCSIQQNBZHAIAZ}

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	2026-07-05T05:01:27.607766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c6266e45c336afa8a48841a1c9c0806613ca9f87d8a3b833c8ffeac6ce3ebcd

Aliases

arxiv: 2207.12473 · arxiv_version: 2207.12473v2 · doi: 10.48550/arxiv.2207.12473 · pith_short_12: PRRGNZC4GNVP · pith_short_16: PRRGNZC4GNVPVCSI · pith_short_8: PRRGNZC4

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/PRRGNZC4GNVPVCSIQQNBZHAIAZ \
  | 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: 7c6266e45c336afa8a48841a1c9c0806613ca9f87d8a3b833c8ffeac6ce3ebcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca57223ac16a4703d2fe61802473febf31e6328fe5565258aa9725b258ec4598",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-07-25T18:49:39Z",
    "title_canon_sha256": "c6a25508f12868bf345cf33dd59319921b70b7a50b8e3091e6619fe7722db56f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.12473",
    "kind": "arxiv",
    "version": 2
  }
}