Pith Number

pith:FNCOEYKA

pith:2010:FNCOEYKAAGBAP4UBTYACL2KKXM

not attested not anchored not stored refs pending

Physical Conditions in the Broad Line Region of $z\sim3$ Quasars: A Photoionization Method to Derive $r_{BLR}$

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

arxiv:1011.4248 v2 · 2010-11-18 · 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{FNCOEYKAAGBAP4UBTYACL2KKXM}

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	2026-05-18T02:23:36.287526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b44e26140018207f2819e0025e94abb19c258e2df20673b8e358ee4ff9c9102

Aliases

arxiv: 1011.4248 · arxiv_version: 1011.4248v2 · doi: 10.48550/arxiv.1011.4248 · pith_short_12: FNCOEYKAAGBA · pith_short_16: FNCOEYKAAGBAP4UB · pith_short_8: FNCOEYKA

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/FNCOEYKAAGBAP4UBTYACL2KKXM \
  | 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: 2b44e26140018207f2819e0025e94abb19c258e2df20673b8e358ee4ff9c9102

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dcb10d182dc64cf94cc2c306870556a75b487bc78126a207894ebb7750fc381",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-11-18T18:22:28Z",
    "title_canon_sha256": "a69a75bf59d445dfe736fc44c4d8b17dbf9cf0404543c13acf1ee512b06b2e94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4248",
    "kind": "arxiv",
    "version": 2
  }
}