Pith Number

pith:Z4MRWMCP

pith:2008:Z4MRWMCPBQAUGKGFEFTYLDTUXD

not attested not anchored not stored refs pending

Correlated variability in the blazar 3C 454.3

A. Kaptur (Yale), C. Bailyn, C. M. Urry, E. W. Bonning, G. Fossati (Rice), J. Isler, L. Maraschi (INAF-Osservatorio di Brera), M. Buxton (Yale), P. Coppi, R. Scalzo

arxiv:0812.4582 v1 · 2008-12-30 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z4MRWMCPBQAUGKGFEFTYLDTUXD}

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	2026-05-18T04:29:24.267080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf191b304f0c014328c52167858e74b8c8ed449f83aca2726e9a067565d0b866

Aliases

arxiv: 0812.4582 · arxiv_version: 0812.4582v1 · doi: 10.48550/arxiv.0812.4582 · pith_short_12: Z4MRWMCPBQAU · pith_short_16: Z4MRWMCPBQAUGKGF · pith_short_8: Z4MRWMCP

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/Z4MRWMCPBQAUGKGFEFTYLDTUXD \
  | 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: cf191b304f0c014328c52167858e74b8c8ed449f83aca2726e9a067565d0b866

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80a3884754e5f5e32616cc83850a35b6b949423ad2489c1c2020ca349cb934ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-30T20:20:48Z",
    "title_canon_sha256": "b68e2f500ba92c51dc08db4e26e242b38bfa1330678004ec5766b2bcc5908a4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4582",
    "kind": "arxiv",
    "version": 1
  }
}