Pith Number

pith:JMQYWL4X

pith:2012:JMQYWL4XL4Y25XXOYYIJOB5PUZ

not attested not anchored not stored refs pending

The analysis of the hydrogen broad Balmer line ratios: possible implications to the physical properties of the BLR of AGN

D. Ilic, G. La Mura, L. C. Popovic, P. Rafanelli, S. Ciroi

arxiv:1205.3950 v1 · 2012-05-17 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JMQYWL4XL4Y25XXOYYIJOB5PUZ}

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	2026-05-18T01:57:26.058577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b218b2f975f31aedeeec6109707afa6538a68cc6047e11951d9064e203f288c

Aliases

arxiv: 1205.3950 · arxiv_version: 1205.3950v1 · doi: 10.48550/arxiv.1205.3950 · pith_short_12: JMQYWL4XL4Y2 · pith_short_16: JMQYWL4XL4Y25XXO · pith_short_8: JMQYWL4X

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/JMQYWL4XL4Y25XXOYYIJOB5PUZ \
  | 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: 4b218b2f975f31aedeeec6109707afa6538a68cc6047e11951d9064e203f288c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2882f8fab358a3ad889e0caafc9340fd43b1c48b5d931261e69d0776bece533",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-17T15:03:01Z",
    "title_canon_sha256": "072bc4b4fb570441c905778b015c8518a1280d0c17c90e40ae3cc4d2cfe2350b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3950",
    "kind": "arxiv",
    "version": 1
  }
}