Pith Number

pith:PCTIJUWO

pith:2004:PCTIJUWOB23CVR732PTQUCYIYA

not attested not anchored not stored refs pending

The Infrared Spectrograph on the Spitzer Space Telescope

((1) Cornell University), J.R. Houck (1), the Spitzer/IRS team

arxiv:astro-ph/0406167 v1 · 2004-06-07 · 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{PCTIJUWOB23CVR732PTQUCYIYA}

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	2026-05-18T04:23:00.721890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78a684d2ce0eb62ac7fbd3e70a0b08c03cae983aed5090e8f087198611210860

Aliases

arxiv: astro-ph/0406167 · arxiv_version: astro-ph/0406167v1 · doi: 10.48550/arxiv.astro-ph/0406167 · pith_short_12: PCTIJUWOB23C · pith_short_16: PCTIJUWOB23CVR73 · pith_short_8: PCTIJUWO

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/PCTIJUWOB23CVR732PTQUCYIYA \
  | 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: 78a684d2ce0eb62ac7fbd3e70a0b08c03cae983aed5090e8f087198611210860

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec5a6fb96b16b0212ce0ed8168a93ba1ab06e18631414b9ac67d0f09de17e8b6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-07T15:02:39Z",
    "title_canon_sha256": "39f0790bee7120d34122c86d57a00a72fee60596d43747eef560fef1d0b64970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406167",
    "kind": "arxiv",
    "version": 1
  }
}