Pith Number

pith:CYRGHNRN

pith:1999:CYRGHNRNTA62TFZWXAWAV3DYYX

not attested not anchored not stored refs pending

The Multitude of Unresolved Continuum Sources at 1.6 microns in Hubble Space Telescope images of Seyfert Galaxies

A. Alonso-Herrero, A. C. Quillen, Ariane Lee, Colleen McDonald, G. H. Rieke (Steward Observatory), M. J. Rieke, Shanna Shaked

arxiv:astro-ph/9912452 v3 · 1999-12-21 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CYRGHNRNTA62TFZWXAWAV3DYYX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:40:12.242932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

162263b62d983da99736b82c0aec78c5fc307ab44ac186f9f88f36ad3679738b

Aliases

arxiv: astro-ph/9912452 · arxiv_version: astro-ph/9912452v3 · doi: 10.48550/arxiv.astro-ph/9912452 · pith_short_12: CYRGHNRNTA62 · pith_short_16: CYRGHNRNTA62TFZW · pith_short_8: CYRGHNRN

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/CYRGHNRNTA62TFZWXAWAV3DYYX \
  | 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: 162263b62d983da99736b82c0aec78c5fc307ab44ac186f9f88f36ad3679738b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1e45e977ac6549d9a851a6917fa1f50ea2ef0ef49e0ac10ebbb1d8f975558f1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-21T20:00:12Z",
    "title_canon_sha256": "807dfca0a1629882c1037742445fea501c65615f77ca5f08caa280cd7749cf94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912452",
    "kind": "arxiv",
    "version": 3
  }
}