Pith Number

pith:Q4UJHGAA

pith:2000:Q4UJHGAA5K632Z6MVHMSYID3VV

not attested not anchored not stored refs pending

Investigating ULIRGs in the Near-Infrared: Imaging & Spectroscopy

A. Burston, M. Ward, R. Davies

arxiv:astro-ph/0012221 v1 · 2000-12-11 · 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{Q4UJHGAA5K632Z6MVHMSYID3VV}

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	2026-07-04T14:10:56.903480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8728939800eabdbd67cca9d92c207bad6ed189961d0b5e3fd1769ba7c478e03f

Aliases

arxiv: astro-ph/0012221 · arxiv_version: astro-ph/0012221v1 · doi: 10.48550/arxiv.astro-ph/0012221 · pith_short_12: Q4UJHGAA5K63 · pith_short_16: Q4UJHGAA5K632Z6M · pith_short_8: Q4UJHGAA

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/Q4UJHGAA5K632Z6MVHMSYID3VV \
  | 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: 8728939800eabdbd67cca9d92c207bad6ed189961d0b5e3fd1769ba7c478e03f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62e782a3df02a8586e18b83f6ba19bacef1e6e84debeb52a8a7f678006123426",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-11T10:12:39Z",
    "title_canon_sha256": "501929d1d691cceeb0ffe3181e73b35ea1a9666114a86379981cdd98a4a48c2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012221",
    "kind": "arxiv",
    "version": 1
  }
}