Pith Number

pith:QZ5L4NSL

pith:2001:QZ5L4NSL2X7N4GGS7G4Z3NXESJ

not attested not anchored not stored refs pending

Circumnuclear stellar population, morphology and environment of Seyfert 2 galaxies: an evolutionary scenario

H. R. Schmitt, R. Cid Fernandes, R. M Gonzalez Delgado, T. Heckman, T. Storchi-Bergmann

arxiv:astro-ph/0105538 v1 · 2001-05-30 · 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{QZ5L4NSL2X7N4GGS7G4Z3NXESJ}

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	2026-07-04T16:23:28.208229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

867abe364bd5fede18d2f9b99db6e492749840f205763c870d0f55c35f6692f5

Aliases

arxiv: astro-ph/0105538 · arxiv_version: astro-ph/0105538v1 · doi: 10.48550/arxiv.astro-ph/0105538 · pith_short_12: QZ5L4NSL2X7N · pith_short_16: QZ5L4NSL2X7N4GGS · pith_short_8: QZ5L4NSL

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/QZ5L4NSL2X7N4GGS7G4Z3NXESJ \
  | 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: 867abe364bd5fede18d2f9b99db6e492749840f205763c870d0f55c35f6692f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15cd19449c3ed10da407d1e2fbc414e5620a549fb0f2c56adb12d1322817a060",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-05-30T18:21:04Z",
    "title_canon_sha256": "a8f4698241ac0e5320a1be588eeaabecb15f5a55281cdb07bf69cecb2335ee34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0105538",
    "kind": "arxiv",
    "version": 1
  }
}