Pith Number

pith:W2OQVUR6

pith:2021:W2OQVUR6ENQ4WBT2WWMBEPGBCP

not attested not anchored not stored refs pending

UOCS. III. UVIT catalogue of open clusters with machine learning based membership using \textit{Gaia} EDR3 astrometry

Annapurni Subramaniam, Clara M. Pennock, Prasanta Kumar Nayak, Ram Sagar, Vikrant V. Jadhav

arxiv:2101.07122 v1 · 2021-01-18 · astro-ph.GA · 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{W2OQVUR6ENQ4WBT2WWMBEPGBCP}

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	2026-07-05T02:11:08.678575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b69d0ad23e2361cb067ab598123cc113fac1822bc9a867a8b8cd2079f84eb391

Aliases

arxiv: 2101.07122 · arxiv_version: 2101.07122v1 · doi: 10.48550/arxiv.2101.07122 · pith_short_12: W2OQVUR6ENQ4 · pith_short_16: W2OQVUR6ENQ4WBT2 · pith_short_8: W2OQVUR6

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/W2OQVUR6ENQ4WBT2WWMBEPGBCP \
  | 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: b69d0ad23e2361cb067ab598123cc113fac1822bc9a867a8b8cd2079f84eb391

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb631944a2d7c812cc8e6ceab556cfa2c1c9bb7a6f8c70ca01ee3fa506bd4c1c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-18T15:26:18Z",
    "title_canon_sha256": "a583f19d706b35d12b53eecdaac5114e4d4b0e06f6f7cf682ebd55ac42035279"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07122",
    "kind": "arxiv",
    "version": 1
  }
}