Pith Number

pith:NI4PTVGE

pith:2009:NI4PTVGEYXFX5BXYJTSBXOC7AB

not attested not anchored not stored refs pending

Long-term EXOTIME photometry and follow-up spectroscopy of the sdB pulsator HS 0702+6043

R. Kruspe, R. Lutz, R. Silvotti, S. Dreizler, S. Schuh

arxiv:0901.4514 v1 · 2009-01-28 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NI4PTVGEYXFX5BXYJTSBXOC7AB}

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	2026-05-18T02:14:55.413923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a38f9d4c4c5cb7e86f84ce41bb85f006bafb622a351423a7eb6343c2460cc91

Aliases

arxiv: 0901.4514 · arxiv_version: 0901.4514v1 · doi: 10.48550/arxiv.0901.4514 · pith_short_12: NI4PTVGEYXFX · pith_short_16: NI4PTVGEYXFX5BXY · pith_short_8: NI4PTVGE

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/NI4PTVGEYXFX5BXYJTSBXOC7AB \
  | 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: 6a38f9d4c4c5cb7e86f84ce41bb85f006bafb622a351423a7eb6343c2460cc91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "236a837878bea3749120dfffe4ea1b8ed9964ea93869686a2c83bf35f3123982",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-28T17:56:30Z",
    "title_canon_sha256": "0fe6fb6ead564401a325e3c4fdc83e5e59da7fc6232383146809887dae45d341"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4514",
    "kind": "arxiv",
    "version": 1
  }
}