Pith Number

pith:H6J5LM2P

pith:2009:H6J5LM2PZJIWGKR5IEKHTVELS5

not attested not anchored not stored refs pending

Evolution of the u-band luminosity function from redshift 1.2 to 0

Ivan K. Baldry, Matthew Prescott, Phil A. James

arxiv:0904.0349 v1 · 2009-04-02 · 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{H6J5LM2PZJIWGKR5IEKHTVELS5}

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	2026-05-18T02:34:59.985210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f93d5b34fca51632a3d411479d48b97717f0196e31c1e14f123a0fc30292113

Aliases

arxiv: 0904.0349 · arxiv_version: 0904.0349v1 · doi: 10.48550/arxiv.0904.0349 · pith_short_12: H6J5LM2PZJIW · pith_short_16: H6J5LM2PZJIWGKR5 · pith_short_8: H6J5LM2P

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/H6J5LM2PZJIWGKR5IEKHTVELS5 \
  | 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: 3f93d5b34fca51632a3d411479d48b97717f0196e31c1e14f123a0fc30292113

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64d99473ae3fe0368aba3c55a86fece7d5c048785ef076e04f72939768bf0b01",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-02T09:35:24Z",
    "title_canon_sha256": "36367a65d2cff047a1c140cc3a8df956534ac9bca3b302e0247a6d5b314113ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0349",
    "kind": "arxiv",
    "version": 1
  }
}