Pith Number

pith:BBGHK5AR

pith:2009:BBGHK5ARS7MXHXT2OEP7N7KI7G

not attested not anchored not stored refs pending

Synchronous Optical and Radio Polarization Variability in the Blazar OJ287

A. Grabau, A. P. Marscher, B. Taylor, D. P. Clemens, D. Sarcia, E. Dunham, E. V. Tollestrup, F. D. D'Arcangelo, G. G. Williams, M. W. Buie, P. S. Smith, S. G. Jorstad, V. A. Hagen-Thorn, V. M. Larionov, W. K. Gear

arxiv:0903.3934 v1 · 2009-03-23 · 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{BBGHK5ARS7MXHXT2OEP7N7KI7G}

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	2026-05-18T04:29:15.703830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

084c75741197d973de7a711ff6fd48f9b439e18145640ba31eadc01804357e35

Aliases

arxiv: 0903.3934 · arxiv_version: 0903.3934v1 · doi: 10.48550/arxiv.0903.3934 · pith_short_12: BBGHK5ARS7MX · pith_short_16: BBGHK5ARS7MXHXT2 · pith_short_8: BBGHK5AR

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/BBGHK5ARS7MXHXT2OEP7N7KI7G \
  | 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: 084c75741197d973de7a711ff6fd48f9b439e18145640ba31eadc01804357e35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "268db4cea206f840c632c7d6fe7c308c1a76c7f92ab5da23cada3eda8ba5e240",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-23T19:26:17Z",
    "title_canon_sha256": "a38ec3c3b71f75397fc4f53d008983c05f97a22f9736aed908a3853fe628b576"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3934",
    "kind": "arxiv",
    "version": 1
  }
}