Pith Number

pith:AOZB5BKI

pith:2012:AOZB5BKILEUPKLE4GMVPJPLJE2

not attested not anchored not stored refs pending

On the redshift of the blazar PKS0447-439

Amy Furniss, David A. Williams, Emanuele P. Farina, John M. O'Meara, J. Xavier Prochaska, Michele Fumagalli

arxiv:1207.3592 v3 · 2012-07-16 · 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{AOZB5BKILEUPKLE4GMVPJPLJE2}

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	2026-05-18T03:48:46.189684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03b21e85485928f52c9c332af4bd69269a1a6cd1637d15daadc88a1a4bd6cf6c

Aliases

arxiv: 1207.3592 · arxiv_version: 1207.3592v3 · doi: 10.48550/arxiv.1207.3592 · pith_short_12: AOZB5BKILEUP · pith_short_16: AOZB5BKILEUPKLE4 · pith_short_8: AOZB5BKI

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/AOZB5BKILEUPKLE4GMVPJPLJE2 \
  | 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: 03b21e85485928f52c9c332af4bd69269a1a6cd1637d15daadc88a1a4bd6cf6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af6bd4b5c41ca0eec6e69b28d6eed447be14af9420732c40dc748b5c525a8fb6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-16T07:58:42Z",
    "title_canon_sha256": "a818e0483c8494cdc84cfff8f7078eccc9614c71f719b368946cd473cb134e25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3592",
    "kind": "arxiv",
    "version": 3
  }
}