Pith Number

pith:SW5CMRCY

pith:2009:SW5CMRCY64LKJFSJZBPWOSC3TH

not attested not anchored not stored refs pending

The H-alpha luminosity function at redshift 2.2: A new determination using VLT/HAWK-I

2), (2) Laboratoire d'Astrophysique de Toulouse-Tarbes, (3) Stockholm Observatory), Daniel Schaerer (1, Goran Ostlin (3) ((1) Observatoire of Geneve, Matthew Hayes (1)

arxiv:0912.3267 v1 · 2009-12-16 · 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{SW5CMRCY64LKJFSJZBPWOSC3TH}

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	2026-05-18T02:10:16.261344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95ba264458f716a49649c85f67485b99c5d0134cca8e97232e7f218fc809b265

Aliases

arxiv: 0912.3267 · arxiv_version: 0912.3267v1 · doi: 10.48550/arxiv.0912.3267 · pith_short_12: SW5CMRCY64LK · pith_short_16: SW5CMRCY64LKJFSJ · pith_short_8: SW5CMRCY

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/SW5CMRCY64LKJFSJZBPWOSC3TH \
  | 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: 95ba264458f716a49649c85f67485b99c5d0134cca8e97232e7f218fc809b265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da67e5013b885e1783439d9e0a2a9c0ccf2371cdaf7d44e03d35ba17cc6c2d75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-16T21:11:51Z",
    "title_canon_sha256": "d4096f197bedb641aa420a5887629894299b0a4d3dc8123cbe0d21631a39a54d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3267",
    "kind": "arxiv",
    "version": 1
  }
}