Pith Number

pith:DKAKO4WE

pith:2007:DKAKO4WEMMBMC3LIXCNYCAMR7P

not attested not anchored not stored refs pending

Measuring PAH Emission in Ultradeep Spitzer IRS Spectroscopy of High Redshift IR Luminous Galaxies

A. Blain (2), A. Pope (4), D. Scott (4); (1 Spitzer Science Center; 2 Caltech; 3 Cornell; 4 University of British Columbia; 5 University of Crete), D.T. Frayer (1), H. I. Teplitz (1), H. Spoon (3), J. A. Marshall (3), J.W. Colbert (1), L. Armus (1), R. Chary (1), V. Charmandaris (5), V. Desai (2)

arxiv:astro-ph/0701409 v1 · 2007-01-15 · 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{DKAKO4WEMMBMC3LIXCNYCAMR7P}

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	2026-05-18T04:29:07.276563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a80a772c46302c16d68b89b810191fbebda1d97e32db27a18eefd0a64553a8a

Aliases

arxiv: astro-ph/0701409 · arxiv_version: astro-ph/0701409v1 · doi: 10.48550/arxiv.astro-ph/0701409 · pith_short_12: DKAKO4WEMMBM · pith_short_16: DKAKO4WEMMBMC3LI · pith_short_8: DKAKO4WE

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/DKAKO4WEMMBMC3LIXCNYCAMR7P \
  | 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: 1a80a772c46302c16d68b89b810191fbebda1d97e32db27a18eefd0a64553a8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "987d6ddb77337497773f0b7049f4b9c8127af68fb210c0494bf241c382955d70",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-15T05:47:30Z",
    "title_canon_sha256": "ee7d55c54468587a7f9142746dafd32bb51dedc21ece6a33d50dcc9310bd5346"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701409",
    "kind": "arxiv",
    "version": 1
  }
}