Pith Number

pith:2A4YYDWL

pith:2013:2A4YYDWLDMK3URNA7SSERB42VF

not attested not anchored not stored refs pending

The behavior of quasar C IV emission-line properties with orientation

Jessie C. Runnoe, M. A. DiPompeo, M. S. Brotherton, Zhaohu Shang

arxiv:1312.7500 v1 · 2013-12-29 · astro-ph.HE · 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{2A4YYDWLDMK3URNA7SSERB42VF}

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	2026-05-18T01:45:35.421332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0398c0ecb1b15ba45a0fca448879aa97564302e5751cafcee9aa5f38b30d1f7

Aliases

arxiv: 1312.7500 · arxiv_version: 1312.7500v1 · doi: 10.48550/arxiv.1312.7500 · pith_short_12: 2A4YYDWLDMK3 · pith_short_16: 2A4YYDWLDMK3URNA · pith_short_8: 2A4YYDWL

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/2A4YYDWLDMK3URNA7SSERB42VF \
  | 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: d0398c0ecb1b15ba45a0fca448879aa97564302e5751cafcee9aa5f38b30d1f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0edb64c720bd466be23f838c5ceb3a1d66364a89184bb44553314dea853744ca",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-12-29T04:55:34Z",
    "title_canon_sha256": "64cb1304f90c0a62dc398b6aa2492b2a4bcb144d35115e5388e6eabf2772266d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7500",
    "kind": "arxiv",
    "version": 1
  }
}