Pith Number

pith:DTFGOEE6

pith:2009:DTFGOEE6EUGF3PBTHUVJPP6JV4

not attested not anchored not stored refs pending

Spectral Energy Distributions of type 2 QSOs: obscured star formation at high redshifts

(2) MPE, (3) University of Nottingham, (4) IEM-CSIC, (6) University of Arizona, (7) University of Edinburgh, 8), (8) ESO, A. Alonso-Herrero (4), D. Rigopoulou (1), Garching, Germany), G. Hasinger (2), G. Rieke (6), I. Lehmann (2) ((1) Oxford University, J. Dunlop (7), J.-S. Huang (5), O. Almaini (3), Spain (5) CfA, V. Mainieri (2

arxiv:0908.2307 v1 · 2009-08-17 · 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{DTFGOEE6EUGF3PBTHUVJPP6JV4}

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	2026-05-18T02:12:33.566938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cca67109e250c5dbc333d2a97bfc9af365045972af30a3a63db78ca0bd96aa8

Aliases

arxiv: 0908.2307 · arxiv_version: 0908.2307v1 · doi: 10.48550/arxiv.0908.2307 · pith_short_12: DTFGOEE6EUGF · pith_short_16: DTFGOEE6EUGF3PBT · pith_short_8: DTFGOEE6

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/DTFGOEE6EUGF3PBTHUVJPP6JV4 \
  | 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: 1cca67109e250c5dbc333d2a97bfc9af365045972af30a3a63db78ca0bd96aa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "909a41aba9378d9cf1a734d3ec49f40d5a9e613449649a4a3e2098a31467b618",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-17T08:24:46Z",
    "title_canon_sha256": "68e6573e95d9c59dea8516ee12deea249b88e29a897e8b0054d74853e76822ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2307",
    "kind": "arxiv",
    "version": 1
  }
}