Pith Number

pith:T2AYMVWO

pith:1995:T2AYMVWOEPF33JVF3DAAN6SE2A

not attested not anchored not stored refs pending

Multi-Frequency Monitoring of the Seyfert 1 Galaxy NGC~4593 II: a Small, Compact Nucleus ?

B.M. Peterson, D. Pelat, G. Reichert, I.S. Glass, J. Clavel, M. Santos-Lleo, P. Barr

arxiv:astro-ph/9503024 v1 · 1995-03-06 · 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{T2AYMVWOEPF33JVF3DAAN6SE2A}

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	2026-05-18T01:40:23.722344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e818656ce23cbbda6a5d8c006fa44d01fd3e38437a8975ccd852bfecf88e9dd

Aliases

arxiv: astro-ph/9503024 · arxiv_version: astro-ph/9503024v1 · doi: 10.48550/arxiv.astro-ph/9503024 · pith_short_12: T2AYMVWOEPF3 · pith_short_16: T2AYMVWOEPF33JVF · pith_short_8: T2AYMVWO

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/T2AYMVWOEPF33JVF3DAAN6SE2A \
  | 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: 9e818656ce23cbbda6a5d8c006fa44d01fd3e38437a8975ccd852bfecf88e9dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6309db44c53b6a2b184503d1fc5ea98175d90449a81cd6417c1d3890f0779a10",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-03-06T09:57:25Z",
    "title_canon_sha256": "549e773245ec26fda0be62c276c00758dd07208fa8f1113c2cd0c5f641cefb0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9503024",
    "kind": "arxiv",
    "version": 1
  }
}