Pith Number

pith:ESHFQ637

pith:2001:ESHFQ637SPFXYG6MTFD426DGC3

not attested not anchored not stored refs pending

Measuring Black Hole Masses Using Ionized Gas Kinematics

Aaron J. Barth, Alexei V. Filippenko, Greg Rudnick, Hans-Walter Rix, Joseph C. Shields, Luis C. Ho, Marc Sarzi, Wallace L. W. Sargent

arxiv:astro-ph/0110672 v1 · 2001-10-30 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ESHFQ637SPFXYG6MTFD426DGC3}

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.

Cited by

1 paper in Pith

The AGN Optical Variability Fundamental Plane

Receipt and verification

First computed	2026-07-04T14:11:36.771495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

248e587b7f93cb7c1bcc9947cd786616cb4d030590d05905cc23891e83b43487

Aliases

arxiv: astro-ph/0110672 · arxiv_version: astro-ph/0110672v1 · doi: 10.48550/arxiv.astro-ph/0110672 · pith_short_12: ESHFQ637SPFX · pith_short_16: ESHFQ637SPFXYG6M · pith_short_8: ESHFQ637

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/ESHFQ637SPFXYG6MTFD426DGC3 \
  | 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: 248e587b7f93cb7c1bcc9947cd786616cb4d030590d05905cc23891e83b43487

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81a013a984900beaad8da1d2056fce5a8b23f20250ea2c97cdb46b2bf3d5655e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-30T21:03:13Z",
    "title_canon_sha256": "bb195b19b80b314587b63056df7f493d120476b40fa45c10fa2b76a2498f9516"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110672",
    "kind": "arxiv",
    "version": 1
  }
}