Pith Number

pith:MFEM5KK7

pith:2018:MFEM5KK7QEU4LP52CKT32772WJ

not attested not anchored not stored refs pending

Period changes in the RR Lyrae stars of NGC 6171 (M107)

A. Arellano Ferro, A. Luna, D. Deras, P. Rosenzweig, R. Michel, S. Giridhar, S. Muneer

arxiv:1801.04347 v1 · 2018-01-12 · 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{MFEM5KK7QEU4LP52CKT32772WJ}

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	2026-05-18T00:13:30.391035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6148cea95f8129c5bfba12a7bd7ffab270fc89e756a8462fc2d3081975c1f62b

Aliases

arxiv: 1801.04347 · arxiv_version: 1801.04347v1 · doi: 10.48550/arxiv.1801.04347 · pith_short_12: MFEM5KK7QEU4 · pith_short_16: MFEM5KK7QEU4LP52 · pith_short_8: MFEM5KK7

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/MFEM5KK7QEU4LP52CKT32772WJ \
  | 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: 6148cea95f8129c5bfba12a7bd7ffab270fc89e756a8462fc2d3081975c1f62b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d7142fda4cbc93f616b07740f4ea913b92c9af8bf1552155904d1929b7c5859",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-01-12T22:48:19Z",
    "title_canon_sha256": "b2c1415aea11f8ea8a8728821e5878aab74f4df7ddb5e9b93047eb7075c0eee3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04347",
    "kind": "arxiv",
    "version": 1
  }
}