Pith Number

pith:GCFBBVLV

pith:2007:GCFBBVLV65GPFZF75KMPWCERWE

not attested not anchored not stored refs pending

Discovery of Polarization Reverberation in NGC 4151

C. Martin Gaskell, Masatoshi Shoji, Nelly I. Merkulova, Nikolay M. Shakhovskoy, Rene W. Goosmann

arxiv:0711.1019 v2 · 2007-11-07 · 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{GCFBBVLV65GPFZF75KMPWCERWE}

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	2026-05-18T02:16:09.672082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

308a10d575f74cf2e4bfea98fb0891b1059577dca995217871ad081e9aca5c77

Aliases

arxiv: 0711.1019 · arxiv_version: 0711.1019v2 · doi: 10.48550/arxiv.0711.1019 · pith_short_12: GCFBBVLV65GP · pith_short_16: GCFBBVLV65GPFZF7 · pith_short_8: GCFBBVLV

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/GCFBBVLV65GPFZF75KMPWCERWE \
  | 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: 308a10d575f74cf2e4bfea98fb0891b1059577dca995217871ad081e9aca5c77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe11d9d7763b14201ab33a8dcf404ce57ef89ff6b26c28b663a58b6155f7fed7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-07T07:02:49Z",
    "title_canon_sha256": "81574187163bdfad22950634598ebc668c1e0f1fc9873be7257682c02bf3bf3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.1019",
    "kind": "arxiv",
    "version": 2
  }
}