Pith Number

pith:7LXAAWJ6

pith:2013:7LXAAWJ6DTH62YJR26ZIPDTWRH

not attested not anchored not stored refs pending

Reverberation and photoionization estimates of the Broad Line Region Radius in Low-z Quasars

C. Alenka Negrete, Deborah Dultzin, Jack W. Sulentic, Paola Marziani

arxiv:1305.4574 v1 · 2013-05-20 · 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{7LXAAWJ6DTH62YJR26ZIPDTWRH}

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	2026-05-18T01:49:48.703678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

faee00593e1ccfed6131d7b2878e7689f8e9da4d43064e6e6bb16189c5873a61

Aliases

arxiv: 1305.4574 · arxiv_version: 1305.4574v1 · doi: 10.48550/arxiv.1305.4574 · pith_short_12: 7LXAAWJ6DTH6 · pith_short_16: 7LXAAWJ6DTH62YJR · pith_short_8: 7LXAAWJ6

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/7LXAAWJ6DTH62YJR26ZIPDTWRH \
  | 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: faee00593e1ccfed6131d7b2878e7689f8e9da4d43064e6e6bb16189c5873a61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31bf01909be7fc2092f900dac3180cdecd0a57efd8beb14d26d0eef7a803ae2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-20T16:41:38Z",
    "title_canon_sha256": "3682f26de09734ce045dc7414c81a639f29c3e713b5faf39c2a47dcef8a8e521"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4574",
    "kind": "arxiv",
    "version": 1
  }
}