Pith Number

pith:EIXV5CAN

pith:2012:EIXV5CANHHLYYW7XLLLOEF6XME

not attested not anchored not stored refs pending

Towards equation of state of dark energy from quasar monitoring: Reverberation strategy

A. Schwarzenberg-Czerny, B. Czerny, I. Maity, K. Hryniewicz, M. Bilicki, P. T. Zycki

arxiv:1212.0472 v2 · 2012-12-03 · 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{EIXV5CANHHLYYW7XLLLOEF6XME}

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	2026-05-18T01:52:48.270056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

222f5e880d39d78c5bf75ad6e217d7610939be34a9198d023b6fd5ba519a8028

Aliases

arxiv: 1212.0472 · arxiv_version: 1212.0472v2 · doi: 10.48550/arxiv.1212.0472 · pith_short_12: EIXV5CANHHLY · pith_short_16: EIXV5CANHHLYYW7X · pith_short_8: EIXV5CAN

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/EIXV5CANHHLYYW7XLLLOEF6XME \
  | 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: 222f5e880d39d78c5bf75ad6e217d7610939be34a9198d023b6fd5ba519a8028

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8072273a6c42e56a300278b973a8e33db17e913198e87d6cbcbad97c0982457f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-03T18:07:52Z",
    "title_canon_sha256": "457fd94d1e192784775f81ad135a39cfffacc8364df97fea8f5d316280b79c9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0472",
    "kind": "arxiv",
    "version": 2
  }
}