Pith Number

pith:GR24NXEV

pith:2015:GR24NXEVBOV6O2RKIJQFZDVQFH

not attested not anchored not stored refs pending

VI-Band Follow-Up Observations of Ultra-Long-Period Cepheid Candidates in M31

Chien-Hsiu Lee, Chi-Sheng Lin, Chow-Choong Ngeow, Hsiang-Yao Hsiao, I-Ling Lin, Michael Ting-Chang Yang, Shashi M. Kanbur, Wing-Huen Ip, Yu-Chi Cheng, Zhong-Yi Lin

arxiv:1501.02456 v1 · 2015-01-11 · 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{GR24NXEVBOV6O2RKIJQFZDVQFH}

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	2026-05-18T01:41:11.746033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3475c6dc950babe76a2a42605c8eb029f9f2e3a31314b1c4fb4a1805defcbb10

Aliases

arxiv: 1501.02456 · arxiv_version: 1501.02456v1 · doi: 10.48550/arxiv.1501.02456 · pith_short_12: GR24NXEVBOV6 · pith_short_16: GR24NXEVBOV6O2RK · pith_short_8: GR24NXEV

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/GR24NXEVBOV6O2RKIJQFZDVQFH \
  | 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: 3475c6dc950babe76a2a42605c8eb029f9f2e3a31314b1c4fb4a1805defcbb10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d907b3e46ad45803a643a121c0920f864033893a7248e9303f21fecad036ab17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-01-11T13:04:59Z",
    "title_canon_sha256": "b25a453dae5b222eb13aaadae4b21bf0f7c583e6f46f9c8554344f805d5473ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02456",
    "kind": "arxiv",
    "version": 1
  }
}