Pith Number

pith:CF2EHE52

pith:2000:CF2EHE52A5I5N5XCK4WUSFST2A

not attested not anchored not stored refs pending

A spectroscopic study of NGC 6251 and its companion galaxies

D. M. Worrall, M. Birkinshaw, P. N. Werner

arxiv:astro-ph/0005065 v1 · 2000-05-03 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CF2EHE52A5I5N5XCK4WUSFST2A}

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	2026-05-18T01:07:46.714368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11744393ba0751d6f6e2572d491653d03660f2394f2a03f203391bed2b8ed327

Aliases

arxiv: astro-ph/0005065 · arxiv_version: astro-ph/0005065v1 · doi: 10.48550/arxiv.astro-ph/0005065 · pith_short_12: CF2EHE52A5I5 · pith_short_16: CF2EHE52A5I5N5XC · pith_short_8: CF2EHE52

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/CF2EHE52A5I5N5XCK4WUSFST2A \
  | 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: 11744393ba0751d6f6e2572d491653d03660f2394f2a03f203391bed2b8ed327

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b064ff7e9f6cd167189f8de449b73c1af8920702661e44f2845a2895b23777c7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-05-03T16:37:31Z",
    "title_canon_sha256": "687659097d084c0357665e5b1f413ba192b2e6eb67ce637bf2400a4f2a319bad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0005065",
    "kind": "arxiv",
    "version": 1
  }
}