Pith Number

pith:VMDEMCIF

pith:2013:VMDEMCIFUFZYHBO7NAL6X5QNGH

not attested not anchored not stored refs pending

The Pulsation Mode and Distance of the Cepheid FF Aquilae

D. G. Turner, L. N. Berdnikov, R. E. Luck, V. V. Kovtyukh

arxiv:1306.1228 v1 · 2013-06-05 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VMDEMCIFUFZYHBO7NAL6X5QNGH}

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	2026-05-18T01:49:32.307598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab06460905a1738385df6817ebf60d31ca3d566c79a7b2c7e303b7d4ae152f4d

Aliases

arxiv: 1306.1228 · arxiv_version: 1306.1228v1 · doi: 10.48550/arxiv.1306.1228 · pith_short_12: VMDEMCIFUFZY · pith_short_16: VMDEMCIFUFZYHBO7 · pith_short_8: VMDEMCIF

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/VMDEMCIFUFZYHBO7NAL6X5QNGH \
  | 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: ab06460905a1738385df6817ebf60d31ca3d566c79a7b2c7e303b7d4ae152f4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f44c2d748ee152f1dab756efa4f7957741557dc04d8097f2decd2d1d73dd5e07",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-06-05T20:00:01Z",
    "title_canon_sha256": "4db5e2f83b16865d3680ecfeb0d353d55561d41c75006cefeb5b275e5a03fce3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1228",
    "kind": "arxiv",
    "version": 1
  }
}