Pith Number

pith:T55XOYTY

pith:2009:T55XOYTYZI262A7ZCVWCNYYK5Y

not attested not anchored not stored refs pending

The Arecibo Legacy Fast ALFA Survey: IX. The Leo Region HI Catalog, Group Membership and the HI Mass Function for the Leo I Group

A.M. Martin, A. Saintonge, B.R. Kent, I.D. Karachentsev, M.P. Haynes, R. Giovanelli, S. Stierwalt, V.E. Karachentseva

arxiv:0906.2178 v1 · 2009-06-11 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T55XOYTYZI262A7ZCVWCNYYK5Y}

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	2026-05-18T02:13:20.664874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f7b776278ca35ed03f9156c26e30aee300629423501c2b410c6d3d2938ec3ac

Aliases

arxiv: 0906.2178 · arxiv_version: 0906.2178v1 · doi: 10.48550/arxiv.0906.2178 · pith_short_12: T55XOYTYZI26 · pith_short_16: T55XOYTYZI262A7Z · pith_short_8: T55XOYTY

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/T55XOYTYZI262A7ZCVWCNYYK5Y \
  | 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: 9f7b776278ca35ed03f9156c26e30aee300629423501c2b410c6d3d2938ec3ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b7e723551eb6e7b687ac88ab3a46f7140958c547db00b09d3cbc052d0f7f63a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-11T18:47:13Z",
    "title_canon_sha256": "8ea945692b0b44db33fedb6f5898b06e32c5166a94f80c29d01403ef152d3683"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2178",
    "kind": "arxiv",
    "version": 1
  }
}