Pith Number

pith:HOEKRLXO

pith:2011:HOEKRLXOET2BWEG55KP4CM3V4O

not attested not anchored not stored refs pending

Do Anomalous Narrow Line Quasars Cast Doubt on Virial Mass Estimation?

Charles L. Steinhardt, John D. Silverman (IPMU, University of Tokyo)

arxiv:1109.1554 v1 · 2011-09-07 · 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{HOEKRLXOET2BWEG55KP4CM3V4O}

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	2026-05-18T04:13:54.902878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b88a8aeee24f41b10ddea9fc13375e3a79b996871c08700e9534a8770109939

Aliases

arxiv: 1109.1554 · arxiv_version: 1109.1554v1 · doi: 10.48550/arxiv.1109.1554 · pith_short_12: HOEKRLXOET2B · pith_short_16: HOEKRLXOET2BWEG5 · pith_short_8: HOEKRLXO

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/HOEKRLXOET2BWEG55KP4CM3V4O \
  | 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: 3b88a8aeee24f41b10ddea9fc13375e3a79b996871c08700e9534a8770109939

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c5b3f63ef946e7015f7afabe4552bb92bb079f3a754896431fa8f677a724799",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-09-07T20:00:01Z",
    "title_canon_sha256": "f15f8d58649b8590c61e025a84465afd8629521e325d7802dae332fb4b6b27d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1554",
    "kind": "arxiv",
    "version": 1
  }
}