Pith Number

pith:VYQA4N2J

pith:2019:VYQA4N2JVSQGACPQYAFMO533HR

not attested not anchored not stored refs pending

CCD UBVRI photometry of the open cluster Berkeley 8

Hikmet \c{C}akmak, Ra\'ul Michel, Y\"uksel Karata\c{s}

arxiv:1908.05479 v4 · 2019-08-15 · 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{VYQA4N2JVSQGACPQYAFMO533HR}

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	2026-07-04T23:59:34.617400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae200e3749aca06009f0c00ac7777b3c49da812cc59318fef21bf6c646b6659e

Aliases

arxiv: 1908.05479 · arxiv_version: 1908.05479v4 · doi: 10.48550/arxiv.1908.05479 · pith_short_12: VYQA4N2JVSQG · pith_short_16: VYQA4N2JVSQGACPQ · pith_short_8: VYQA4N2J

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/VYQA4N2JVSQGACPQYAFMO533HR \
  | 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: ae200e3749aca06009f0c00ac7777b3c49da812cc59318fef21bf6c646b6659e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88da5d6a876c042e111515fe29a2977427663bdfb77b8b04d1b9b86fda187834",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-15T10:21:25Z",
    "title_canon_sha256": "f7c496eee351775d619065e739620bdcb175ac22675cd712e9f23f9f211fded1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05479",
    "kind": "arxiv",
    "version": 4
  }
}