Pith Number

pith:3KYLH7T6

pith:2004:3KYLH7T62B5MMZJ7JR5KNBSX4B

not attested not anchored not stored refs pending

A new population of extended, luminous star clusters in the halo of M31

A. M. N. Ferguson, A. P. Huxor, G. F. Lewis, J. L. Collett, M. J. Irwin, N. R. Tanvir, R. Ibata, T. Bridges

arxiv:astro-ph/0412223 v2 · 2004-12-09 · 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{3KYLH7T62B5MMZJ7JR5KNBSX4B}

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	2026-07-04T16:45:23.007428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dab0b3fe7ed07ac6653f4c7aa68657e047785a1284d87e8c11e63636a0d35e36

Aliases

arxiv: astro-ph/0412223 · arxiv_version: astro-ph/0412223v2 · doi: 10.48550/arxiv.astro-ph/0412223 · pith_short_12: 3KYLH7T62B5M · pith_short_16: 3KYLH7T62B5MMZJ7 · pith_short_8: 3KYLH7T6

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/3KYLH7T62B5MMZJ7JR5KNBSX4B \
  | 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: dab0b3fe7ed07ac6653f4c7aa68657e047785a1284d87e8c11e63636a0d35e36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c803491e88f5ce192a2f6d6c8ee841ca5c4b8d28e410e241c6ba230001e6669",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-09T17:37:31Z",
    "title_canon_sha256": "f557503b642cf1c69802143bf91d4094961026da0ea4b0ceb36935e3bc20a0c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412223",
    "kind": "arxiv",
    "version": 2
  }
}