Pith Number

pith:4DVAQXII

pith:2008:4DVAQXIIVPET6AGZPYU3ADOR36

not attested not anchored not stored refs pending

Obscured star formation in intermediate-density environments: A Spitzer study of the Abell 901/902 supercluster

(10) UMass, (11) Portsmouth, (12) EPFL, (13) AIP, (14) UT McDonald, (15) UT Austin, (16) CAHA, (17) Edinburgh, (18) PMO), ((1) MPIA, (2) Oxford, (3) Nottingham, (4) Texas AMU, (5) Innsbruck, (6) NRC, (7) UBC, (8) ESO Chile (9) Waterloo, A. Boehm (13), A. Gallazzi (1), A.R. Robaina (1), A. Taylor (17), B. Haeussler (3), C. Heymans (7), C. Papovich (4), C. Wolf (2), C.Y. Peng (6), D. Bacon (11), D. H. McIntosh (10), E.F. Bell (1), E. van Kampen (5), F.D. Barazza (12), J.A.R. Caldwell (14), K. Jahnke (1), K. Lane (3), K. Meisenheimer (1), L. Wisotzki (12), M. Balogh (9), M. Barden (5), M.E. Gray (3), R. Gilmour (8), S.F. Sanchez (16), S. Jogee (15), X. Zheng (18)

arxiv:0809.2042 v2 · 2008-09-11 · 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{4DVAQXIIVPET6AGZPYU3ADOR36}

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	2026-05-18T04:29:32.760277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0ea085d08abc93f00d97e29b00dd1dfa7a9d9e94746498771d1ce27d16b0f77

Aliases

arxiv: 0809.2042 · arxiv_version: 0809.2042v2 · doi: 10.48550/arxiv.0809.2042 · pith_short_12: 4DVAQXIIVPET · pith_short_16: 4DVAQXIIVPET6AGZ · pith_short_8: 4DVAQXII

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/4DVAQXIIVPET6AGZPYU3ADOR36 \
  | 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: e0ea085d08abc93f00d97e29b00dd1dfa7a9d9e94746498771d1ce27d16b0f77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "892c7f6c5ca8a595f8e21b70facfd45717e8f8fda1b24311c798449700488fed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-11T16:11:58Z",
    "title_canon_sha256": "710748a1fc775e365adaa13cc8606d896a0845171806aa9576b90e5e3663a1b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2042",
    "kind": "arxiv",
    "version": 2
  }
}