Pith Number

pith:QQS7NT7H

pith:1998:QQS7NT7H6NH6ZVIRZ2QBHCG5AH

not attested not anchored not stored refs pending

Phase Variability in the Optical Polarization of GRO J1655--40

E. Trussoni, F. Scaltriti, G. Bodo, G. Ghisellini, M. Gliozzi

arxiv:astro-ph/9809089 v1 · 1998-09-08 · 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{QQS7NT7H6NH6ZVIRZ2QBHCG5AH}

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	2026-07-04T14:16:00.805014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8425f6cfe7f34fecd511cea01388dd01deaef097d35074000126276d733b2090

Aliases

arxiv: astro-ph/9809089 · arxiv_version: astro-ph/9809089v1 · doi: 10.48550/arxiv.astro-ph/9809089 · pith_short_12: QQS7NT7H6NH6 · pith_short_16: QQS7NT7H6NH6ZVIR · pith_short_8: QQS7NT7H

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/QQS7NT7H6NH6ZVIRZ2QBHCG5AH \
  | 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: 8425f6cfe7f34fecd511cea01388dd01deaef097d35074000126276d733b2090

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16e74bf0e0b46c4ad972500128dec017c8a9d6d7ca3a5c84b5b90606b96b4ddf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-09-08T10:17:11Z",
    "title_canon_sha256": "645f23de18980bc3280fd39b77bd40142f21f3f367b5a68d3eaee723120bbbac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9809089",
    "kind": "arxiv",
    "version": 1
  }
}