Pith Number

pith:GMCTCNSN

pith:2005:GMCTCNSNBWVW7KWZMWVRA2SZCP

not attested not anchored not stored refs pending

Spitzer Observations of Optically "Invisible" Radio and X-Ray Sources: High Redshift AGN

A. Dey, B. T. Jannuzi, B. T. Soifer, D. W. Weedman, E. Le Floc'h, J. L. Higdon, J. R. Houck, M. J. I. Brown, M. J. Rieke, S. J. U. Higdon

arxiv:astro-ph/0502144 v1 · 2005-02-07 · 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{GMCTCNSNBWVW7KWZMWVRA2SZCP}

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	2026-07-04T16:50:47.298282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

330531364d0dab6faad965ab106a5913f53f32eecb4383fba6f6f07fe1f0ba95

Aliases

arxiv: astro-ph/0502144 · arxiv_version: astro-ph/0502144v1 · doi: 10.48550/arxiv.astro-ph/0502144 · pith_short_12: GMCTCNSNBWVW · pith_short_16: GMCTCNSNBWVW7KWZ · pith_short_8: GMCTCNSN

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/GMCTCNSNBWVW7KWZMWVRA2SZCP \
  | 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: 330531364d0dab6faad965ab106a5913f53f32eecb4383fba6f6f07fe1f0ba95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b4ff6eb124911ef37483d6a538f60bbe7b93ac4e7b03c252553b30a5f8f7f33",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-02-07T17:04:52Z",
    "title_canon_sha256": "4ebcca3464bad8487fe211828b0b9c3d4b83c10c167eb60af8806d1c7f564382"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0502144",
    "kind": "arxiv",
    "version": 1
  }
}