Pith Number

pith:4ME5OPWB

pith:2007:4ME5OPWBMNSLZJP4TUZPNW7YQ7

not attested not anchored not stored refs pending

Presence of dust with a UV bump in massive, star-forming galaxies at 1 < z < 2.5

D. Pierini, M. Pannella, S. Noll, S. Savaglio

arxiv:0707.0684 v1 · 2007-07-04 · 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{4ME5OPWBMNSLZJP4TUZPNW7YQ7}

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	2026-07-04T17:04:33.973188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e309d73ec16364bca5fc9d32f6dbf887c6168aa239e03088278ebbba4c998548

Aliases

arxiv: 0707.0684 · arxiv_version: 0707.0684v1 · doi: 10.48550/arxiv.0707.0684 · pith_short_12: 4ME5OPWBMNSL · pith_short_16: 4ME5OPWBMNSLZJP4 · pith_short_8: 4ME5OPWB

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/4ME5OPWBMNSLZJP4TUZPNW7YQ7 \
  | 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: e309d73ec16364bca5fc9d32f6dbf887c6168aa239e03088278ebbba4c998548

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26548d029ee9ceee4ea6858cf6b6440099ef5d43239eb173dd336e9bf4827bde",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-04T19:53:50Z",
    "title_canon_sha256": "5df4cea2c3ea5665429fcfe985d4247a8ff45eb6268fa0f9fce9eb8d0911d843"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.0684",
    "kind": "arxiv",
    "version": 1
  }
}