Pith Number

pith:PD5GGOYI

pith:2006:PD5GGOYI3XLFNBPK4AVBN3565N

not attested not anchored not stored refs pending

Spitzer Observations of High Redshift QSOs

(2) The University of Arizona), D. C. Hines (1), G. H. Rieke (2), G. Neugebauer (2) ((1) Space Science Institute, M. Blaylock (2), O. Krause (2), X. Fan (2)

arxiv:astro-ph/0604347 v1 · 2006-04-17 · 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{PD5GGOYI3XLFNBPK4AVBN3565N}

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	2026-05-18T04:36:21.461232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78fa633b08ddd65685eae02a16efbeeb6cdb5bb078aba6ddbbf50f616c3e7546

Aliases

arxiv: astro-ph/0604347 · arxiv_version: astro-ph/0604347v1 · doi: 10.48550/arxiv.astro-ph/0604347 · pith_short_12: PD5GGOYI3XLF · pith_short_16: PD5GGOYI3XLFNBPK · pith_short_8: PD5GGOYI

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/PD5GGOYI3XLFNBPK4AVBN3565N \
  | 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: 78fa633b08ddd65685eae02a16efbeeb6cdb5bb078aba6ddbbf50f616c3e7546

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54b9a257ddbe15bc7bcc4fdc6c76d1283c8b1a142665863646ed684e038b3944",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-17T03:53:30Z",
    "title_canon_sha256": "093ce821a6a573fc0ae858d591856d9b3d52de9e51e690d744fc1ce538ace307"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604347",
    "kind": "arxiv",
    "version": 1
  }
}