Pith Number

pith:MS4DFTVO

pith:2009:MS4DFTVOKQKI4GRKULMOV4A23M

not attested not anchored not stored refs pending

The correlated optical and radio variability of BL Lacertae. WEBT data analysis 1994-2005

C. M. Raiteri, et al, M. F. Aller, M. G. Nikolashvili, M. Villata, V. M. Larionov

arxiv:0905.1616 v1 · 2009-05-11 · 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{MS4DFTVOKQKI4GRKULMOV4A23M}

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	2026-05-18T02:13:45.861841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64b832ceae54148e1a2aa2d8eaf01adb3447bec52dc93bd9c4eac8f955ad539e

Aliases

arxiv: 0905.1616 · arxiv_version: 0905.1616v1 · doi: 10.48550/arxiv.0905.1616 · pith_short_12: MS4DFTVOKQKI · pith_short_16: MS4DFTVOKQKI4GRK · pith_short_8: MS4DFTVO

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/MS4DFTVOKQKI4GRKULMOV4A23M \
  | 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: 64b832ceae54148e1a2aa2d8eaf01adb3447bec52dc93bd9c4eac8f955ad539e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92613adbb0fffe8f3520d3c332921364f1dd60e16fce4fbf2b11b4ecc9326e29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-11T13:26:58Z",
    "title_canon_sha256": "d7dce264015503f96e78b81153287cbfbf058a6d8d4e05117970fc9a6d59d20e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1616",
    "kind": "arxiv",
    "version": 1
  }
}