Pith Number

pith:WOUC2VL2

pith:2016:WOUC2VL2WBVDUEE5NDXHCYQSVK

not attested not anchored not stored refs pending

A spectroscopic study of the open cluster NGC 6250

A. J. Martin, B. Smalley, C. Scalia, F. Leone, L. Fossati, M. J. Stift, S. Bagnulo

arxiv:1612.05739 v1 · 2016-12-17 · 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{WOUC2VL2WBVDUEE5NDXHCYQSVK}

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	2026-05-18T00:52:37.171433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3a82d557ab06a3a109d68ee716212aabef95f439460f27243963904dbeeb143

Aliases

arxiv: 1612.05739 · arxiv_version: 1612.05739v1 · doi: 10.48550/arxiv.1612.05739 · pith_short_12: WOUC2VL2WBVD · pith_short_16: WOUC2VL2WBVDUEE5 · pith_short_8: WOUC2VL2

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/WOUC2VL2WBVDUEE5NDXHCYQSVK \
  | 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: b3a82d557ab06a3a109d68ee716212aabef95f439460f27243963904dbeeb143

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66715cf1cec42eca7ab6ee2f3cc486df415cdc41932c1569f3d2950494ebdc15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-12-17T11:51:33Z",
    "title_canon_sha256": "c22eddb28bba1e7b2be0a590f3ab8060933c91a7e3160f147a4abff1ffd14ac0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.05739",
    "kind": "arxiv",
    "version": 1
  }
}