Pith Number

pith:HQFDRAMV

pith:2013:HQFDRAMVG3MPKKOZXJ5V3WJVW4

not attested not anchored not stored refs pending

Constraints on Hyperluminous QSO Lifetimes via Fluorescent Lya Emitters at Z~2.7

Charles C. Steidel, Ryan F. Trainor

arxiv:1308.1678 v1 · 2013-08-07 · 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{HQFDRAMVG3MPKKOZXJ5V3WJVW4}

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	2026-05-18T01:48:22.523099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c0a38819536d8f529d9ba7b5dd935b72920cb4ed269927c2e4f410309497efa

Aliases

arxiv: 1308.1678 · arxiv_version: 1308.1678v1 · doi: 10.48550/arxiv.1308.1678 · pith_short_12: HQFDRAMVG3MP · pith_short_16: HQFDRAMVG3MPKKOZ · pith_short_8: HQFDRAMV

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/HQFDRAMVG3MPKKOZXJ5V3WJVW4 \
  | 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: 3c0a38819536d8f529d9ba7b5dd935b72920cb4ed269927c2e4f410309497efa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c59608bd182e67cb72d4323d0f35a50f88523d1d1bef9d2a0f3bc04a0d244dd6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-08-07T20:00:16Z",
    "title_canon_sha256": "5310399b75823479c5197fd62d6e024520f5b80a681414da0e235db8abb3e5f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1678",
    "kind": "arxiv",
    "version": 1
  }
}