Pith Number

pith:Y2WTFN6V

pith:2025:Y2WTFN6VR35VBNATA3EEPPMGSD

not attested not anchored not stored refs pending

HST Observations within the Sphere of Influence of the Powerful Supermassive Black Hole in PKS0745-191

Alastair Edge, Andr\'e-Nicolas Chen\'e, Andy Fabian, Anja von der Linden, Annabelle Richard-Laferri\`ere, Benjamin Vigneron, Brian McNamara, Carter Rhea, Helen Russell, Hyunseop Choi, James F. Steiner, Jeremy Sanders, Jonelle L. Walsh, Julie Hlavacek-Larrondo, Marie-Jo\"elle Gingras, Marie-Lou Gendron-Marsolais, Marine Prunier, Michael McDonald, Minghao Guo, Priyamvada Natarajan, Steve Allen

arxiv:2501.03339 v1 · 2025-01-06 · astro-ph.GA · 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{Y2WTFN6VR35VBNATA3EEPPMGSD}

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	2026-07-05T09:57:53.151294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6ad32b7d58efb50b41306c847bd8690c9b9e151b283163c3c1659524c0f7df0

Aliases

arxiv: 2501.03339 · arxiv_version: 2501.03339v1 · doi: 10.48550/arxiv.2501.03339 · pith_short_12: Y2WTFN6VR35V · pith_short_16: Y2WTFN6VR35VBNAT · pith_short_8: Y2WTFN6V

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/Y2WTFN6VR35VBNATA3EEPPMGSD \
  | 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: c6ad32b7d58efb50b41306c847bd8690c9b9e151b283163c3c1659524c0f7df0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b47822e560143c7cc0f509b463aff4113bad3804e7d86c7d027986a56447c767",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-06T19:05:54Z",
    "title_canon_sha256": "7b5dd9aa17493c484c3c0021e18d1a929badf869a740668db5db419001f3cdfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.03339",
    "kind": "arxiv",
    "version": 1
  }
}