Pith Number

pith:SZ6GMHJL

pith:2008:SZ6GMHJLURHD5H6ING5VZPRTJ7

not attested not anchored not stored refs pending

Galaxy Groups in the SDSS DR4: III. the luminosity and stellar mass functions

Frank C. van den Bosch (MPIA), H.J. Mo (UMass), Xiaohu Yang (SHAO)

arxiv:0808.0539 v2 · 2008-08-05 · 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{SZ6GMHJLURHD5H6ING5VZPRTJ7}

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	2026-05-18T02:35:15.405348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

967c661d2ba44e3e9fc869bb5cbe334ff3eb610437f1001a0ed2f6f83cfad8a9

Aliases

arxiv: 0808.0539 · arxiv_version: 0808.0539v2 · doi: 10.48550/arxiv.0808.0539 · pith_short_12: SZ6GMHJLURHD · pith_short_16: SZ6GMHJLURHD5H6I · pith_short_8: SZ6GMHJL

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/SZ6GMHJLURHD5H6ING5VZPRTJ7 \
  | 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: 967c661d2ba44e3e9fc869bb5cbe334ff3eb610437f1001a0ed2f6f83cfad8a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2d36e20fdbcc8280eb81c9266fa46f96ef9b81e9475adcc73f4f451893f103b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-08-05T02:51:18Z",
    "title_canon_sha256": "dc1d20788f1e067285206af9f27043fe0e7cfced0462b2d69e4d8c39fa9560a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.0539",
    "kind": "arxiv",
    "version": 2
  }
}