Pith Number

pith:DI2FJDK4

pith:2013:DI2FJDK4Z7PXSEHI7VV6GB4GIG

not attested not anchored not stored refs pending

New variable stars in the field of open cluster NGC188

A.A. Popov, A.F. Punanova, A.Y. Burdanov, E.A. Avvakumova, I.S. Zalozhnih, V.V. Krushinsky

arxiv:1304.5023 v1 · 2013-04-18 · 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{DI2FJDK4Z7PXSEHI7VV6GB4GIG}

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	2026-05-18T03:27:42.018358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a34548d5ccfdf7910e8fd6be3078641bf560e24397838b1c52c6287bf1197f2

Aliases

arxiv: 1304.5023 · arxiv_version: 1304.5023v1 · doi: 10.48550/arxiv.1304.5023 · pith_short_12: DI2FJDK4Z7PX · pith_short_16: DI2FJDK4Z7PXSEHI · pith_short_8: DI2FJDK4

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/DI2FJDK4Z7PXSEHI7VV6GB4GIG \
  | 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: 1a34548d5ccfdf7910e8fd6be3078641bf560e24397838b1c52c6287bf1197f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "158f2b4b9bd5e494fdc04f3a5fbfacaed55357e5dcec9c947613ac3e6b90ca7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-04-18T05:38:54Z",
    "title_canon_sha256": "2cb46b0e651582a8140797ff9acb7b90183bf5718e4e4418cbf7d06feb9f76a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5023",
    "kind": "arxiv",
    "version": 1
  }
}