Pith Number

pith:6X2HTKIV

pith:2016:6X2HTKIVR427HLQXQS2BPZUIZJ

not attested not anchored not stored refs pending

Narrow-line Seyfert 1 galaxies - rebels of the AGN family

Anne L\"ahteenm\"aki, Emilia J\"arvel\"a

arxiv:1603.04400 v1 · 2016-03-14 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6X2HTKIVR427HLQXQS2BPZUIZJ}

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	2026-05-18T01:19:06.849617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5f479a9158f35f3ae1784b417e688ca5cf24d7c6529f9d54597e791cba2c4fd

Aliases

arxiv: 1603.04400 · arxiv_version: 1603.04400v1 · doi: 10.48550/arxiv.1603.04400 · pith_short_12: 6X2HTKIVR427 · pith_short_16: 6X2HTKIVR427HLQX · pith_short_8: 6X2HTKIV

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/6X2HTKIVR427HLQXQS2BPZUIZJ \
  | 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: f5f479a9158f35f3ae1784b417e688ca5cf24d7c6529f9d54597e791cba2c4fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5358e165d6fc2ee29ae2c2929f07a6e698c215eb92bf9a0ae56c29cc231723b8",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-03-14T19:18:32Z",
    "title_canon_sha256": "c4de504b8f02ec489b376d916a9b80e1100b2dba4aaee3d0a27e4928c7ee610a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04400",
    "kind": "arxiv",
    "version": 1
  }
}