Pith Number

pith:H4PCRA4F

pith:2006:H4PCRA4FUVUO6PTU3LHFEF2ENR

not attested not anchored not stored refs pending

Probing the Evolution of IR Properties of z~6 Quasars: Spitzer Observations

Chris L. Carilli, Dean C. Hines, Donald P. Schneider, Emeric Le Floc'h, Fabian Walter, Frank Bertoldi, George H. Rieke, Gordon T. Richards, J. Brinkmann, Laura Pentericci, Linhua Jiang, Marianne Vestergaard, Michael A. Strauss, Pierre Cox, W. N. Brandt, Xiaohui Fan, Yong Shi

arxiv:astro-ph/0608006 v1 · 2006-07-31 · 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{H4PCRA4FUVUO6PTU3LHFEF2ENR}

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	2026-07-04T15:52:23.971693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f1e288385a568ef3e74dace5217446c79382682dfce1c1bda74761974926a31

Aliases

arxiv: astro-ph/0608006 · arxiv_version: astro-ph/0608006v1 · doi: 10.48550/arxiv.astro-ph/0608006 · pith_short_12: H4PCRA4FUVUO · pith_short_16: H4PCRA4FUVUO6PTU · pith_short_8: H4PCRA4F

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/H4PCRA4FUVUO6PTU3LHFEF2ENR \
  | 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: 3f1e288385a568ef3e74dace5217446c79382682dfce1c1bda74761974926a31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91f20231ed4168f538eabe2471b8a7d659975ff7f176fcd8c69cd96d0c0a84af",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-31T22:09:07Z",
    "title_canon_sha256": "026ab8d1e3cf7fab1013c9ee47f54fb65d92cb3d9f6bb787339f36fb3d7ffe17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0608006",
    "kind": "arxiv",
    "version": 1
  }
}