Pith Number

pith:MJYZOMUM

pith:2022:MJYZOMUM5VS6ZMRUZXEXVHNRNI

not attested not anchored not stored refs pending

The properties of the X-ray corona in the distant ($z=3.91$) quasar APM 08279+5255

A. Comastri, C. Vignali, E. Bertola, E. Piconcelli, G. A. Matzeu, G. Chartas, G. Lanzuisi, M. Cappi, M. Dadina, R. Gilli

arxiv:2205.01113 v1 · 2022-05-02 · 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{MJYZOMUM5VS6ZMRUZXEXVHNRNI}

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	2026-07-05T04:35:48.040886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

627197328ced65ecb234cdc97a9db16a219b72f7d3afe9e621d75b4858bec386

Aliases

arxiv: 2205.01113 · arxiv_version: 2205.01113v1 · doi: 10.48550/arxiv.2205.01113 · pith_short_12: MJYZOMUM5VS6 · pith_short_16: MJYZOMUM5VS6ZMRU · pith_short_8: MJYZOMUM

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/MJYZOMUM5VS6ZMRUZXEXVHNRNI \
  | 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: 627197328ced65ecb234cdc97a9db16a219b72f7d3afe9e621d75b4858bec386

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6547daa836c045dae6e1e08893fec3217a36372f290ed0e1d3084e85de0e1e72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-05-02T18:00:02Z",
    "title_canon_sha256": "1f205d16051416457c38fb0599146f58f5e697670cb887424fd1a98f27dbc548"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.01113",
    "kind": "arxiv",
    "version": 1
  }
}