Pith Number

pith:5ZLMUDQZ

pith:2009:5ZLMUDQZBEVBYHY7LOICGQUEK6

not attested not anchored not stored refs pending

Probing the Origins of the CIV and Fe Kalpha Baldwin Effect

Daniel E. Vanden Berk, Donald Schneider, Jianfeng Wu, Jian Wu, Robert Gibson, W.N.Brandt

arxiv:0907.2552 v1 · 2009-07-15 · 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{5ZLMUDQZBEVBYHY7LOICGQUEK6}

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	2026-05-18T02:13:02.860958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee56ca0e19092a1c1f1f5b90234284578f119ad041b05cf93502a79539e9e1b1

Aliases

arxiv: 0907.2552 · arxiv_version: 0907.2552v1 · doi: 10.48550/arxiv.0907.2552 · pith_short_12: 5ZLMUDQZBEVB · pith_short_16: 5ZLMUDQZBEVBYHY7 · pith_short_8: 5ZLMUDQZ

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/5ZLMUDQZBEVBYHY7LOICGQUEK6 \
  | 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: ee56ca0e19092a1c1f1f5b90234284578f119ad041b05cf93502a79539e9e1b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d73df4b1c688a497f8e67cf97ad673b271311332e0711f242dfb86111dc1882a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-15T15:49:57Z",
    "title_canon_sha256": "c8b8b39ec4bbd727d7c00d635b930bd9d9e63a2d98a00cd20293af9df6098c8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2552",
    "kind": "arxiv",
    "version": 1
  }
}