Pith Number

pith:FIXFFLFD

pith:2011:FIXFFLFD33K3JM5YD7AXB3WVY2

not attested not anchored not stored refs pending

Rotational modulation in RRs/Delta Scuti Star pulsation

Michel Breger

arxiv:1104.4392 v1 · 2011-04-22 · 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{FIXFFLFD33K3JM5YD7AXB3WVY2}

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	2026-05-18T02:22:01.344980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a2e52aca3ded5b4b3b81fc170eed5c69c9e52f19c247cc38f14c9cc18db5dbe

Aliases

arxiv: 1104.4392 · arxiv_version: 1104.4392v1 · doi: 10.48550/arxiv.1104.4392 · pith_short_12: FIXFFLFD33K3 · pith_short_16: FIXFFLFD33K3JM5Y · pith_short_8: FIXFFLFD

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/FIXFFLFD33K3JM5YD7AXB3WVY2 \
  | 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: 2a2e52aca3ded5b4b3b81fc170eed5c69c9e52f19c247cc38f14c9cc18db5dbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d268abc9676b4575fba0d5a08cd5aac9012bf9f6ec15d6f15957db267c2c320d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-22T06:28:17Z",
    "title_canon_sha256": "a331bc16916ebe6453bb0ffea52b257cdf2267a29a31e0b1be77d18b7371c1a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4392",
    "kind": "arxiv",
    "version": 1
  }
}