Pith Number

pith:XTJQPAZD

pith:1997:XTJQPAZDLPYNO7JHJCLO722A72

not attested not anchored not stored refs pending

Phase-resolved high-resolution spectrophotometry of the eclipsing polar HU Aquarii

Axel D. Schwope (AIP Potsdam), Karl-Heinz Mantel (Univ. Muenchen), Keith Horne (Univ. St. Andrews)

arxiv:astro-ph/9701094 v1 · 1997-01-15 · 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{XTJQPAZDLPYNO7JHJCLO722A72}

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.

Cited by

1 paper in Pith

MASTER OT J072007.30+451611.6: A Polar with Strong Optical Variability and Suppressed He II Emission

Receipt and verification

First computed	2026-07-04T14:15:01.885430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcd30783235bf0d77d274896efeb40fe8affca751aea8d406fd0f165cb006bdc

Aliases

arxiv: astro-ph/9701094 · arxiv_version: astro-ph/9701094v1 · doi: 10.48550/arxiv.astro-ph/9701094 · pith_short_12: XTJQPAZDLPYN · pith_short_16: XTJQPAZDLPYNO7JH · pith_short_8: XTJQPAZD

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/XTJQPAZDLPYNO7JHJCLO722A72 \
  | 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: bcd30783235bf0d77d274896efeb40fe8affca751aea8d406fd0f165cb006bdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "789a4cd8666c915bd2fc6890aee2f7e5f5d83ac941cf063a3429458e67c06546",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-01-15T12:34:47Z",
    "title_canon_sha256": "d8c610fbf8f73610c91417d82cbd0299df672533d86728f3c5a7f76789e4b345"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9701094",
    "kind": "arxiv",
    "version": 1
  }
}