Pith Number

pith:P3RPXD4Y

pith:2021:P3RPXD4Y6PP6GUXHWMKZXLL2SG

not attested not anchored not stored refs pending

Long-term photometric and low-resolution spectroscopic analysis of five contact binaries

Alaxender Panchal, Peter De Cat, Sugriva Nath Tiwari, Yogesh C.Joshi

arxiv:2112.12379 v1 · 2021-12-23 · 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{P3RPXD4Y6PP6GUXHWMKZXLL2SG}

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	2026-07-05T04:03:00.733668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ee2fb8f98f3dfe352e7b3159bad7a91a8eaa21fedaca31aed6fef0fc5f54bfd

Aliases

arxiv: 2112.12379 · arxiv_version: 2112.12379v1 · doi: 10.48550/arxiv.2112.12379 · pith_short_12: P3RPXD4Y6PP6 · pith_short_16: P3RPXD4Y6PP6GUXH · pith_short_8: P3RPXD4Y

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/P3RPXD4Y6PP6GUXHWMKZXLL2SG \
  | 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: 7ee2fb8f98f3dfe352e7b3159bad7a91a8eaa21fedaca31aed6fef0fc5f54bfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13261b24c8d315e3238c9416e3fcc5e6393bb9aea3fbfeb278eee31c80146d9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-12-23T06:34:37Z",
    "title_canon_sha256": "0a3a68eebd871a7cd14b6540eeb20553155258d7629aa3be347d346b8ae03895"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.12379",
    "kind": "arxiv",
    "version": 1
  }
}