Pith Number

pith:AYA3AET5

pith:1997:AYA3AET53QFPQLWMNP3RMSHAHV

not attested not anchored not stored refs pending

ROSAT monitoring of persistent giant and rapid variability in the narrow-line Seyfert 1 galaxy IRAS 13224-3809

A.C. Fabian, H.H. Fink, Th. Boller, W.N. Brandt

arxiv:astro-ph/9703114 v1 · 1997-03-18 · astro-ph

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T01:40:17.979488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0601b0127ddc0af82ecc6bf71648e03d5f8d1deac5ad8e93bf0872bddad0a0a8

Aliases

arxiv: astro-ph/9703114 · arxiv_version: astro-ph/9703114v1 · doi: 10.48550/arxiv.astro-ph/9703114

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/AYA3AET53QFPQLWMNP3RMSHAHV \
  | 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: 0601b0127ddc0af82ecc6bf71648e03d5f8d1deac5ad8e93bf0872bddad0a0a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cef1a014585c6307aa94ee4088ed31f470c58b8e79d238ee4279244b3d02451b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-03-18T15:52:02Z",
    "title_canon_sha256": "5eb902755706549b80029c60cb3a5078246b20f8336753186f67e9deb512a120"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9703114",
    "kind": "arxiv",
    "version": 1
  }
}