Pith Number

pith:DRUWFPUZ

pith:2011:DRUWFPUZXVNNIRLMW753LRYZNJ

not attested not anchored not stored refs pending

Spitzer spectra of evolved stars in omega Centauri and their low-metallicity dust production

Albert A. Zijlstra, Andrea K. Dupree, Aneurin Evans, Charles E. Woodward, Christian I. Johnson, Gregory C. Sloan, Iain McDonald, Jacco Th. van Loon, Martha L. Boyer, Robert D. Gehrz

arxiv:1104.5155 v1 · 2011-04-27 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DRUWFPUZXVNNIRLMW753LRYZNJ}

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	2026-05-18T02:02:14.176011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c6962be99bd5ad4456cb7fbb5c7196a60bcc510f717a6d3fb9faad20c4a1980

Aliases

arxiv: 1104.5155 · arxiv_version: 1104.5155v1 · doi: 10.48550/arxiv.1104.5155 · pith_short_12: DRUWFPUZXVNN · pith_short_16: DRUWFPUZXVNNIRLM · pith_short_8: DRUWFPUZ

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/DRUWFPUZXVNNIRLMW753LRYZNJ \
  | 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: 1c6962be99bd5ad4456cb7fbb5c7196a60bcc510f717a6d3fb9faad20c4a1980

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f752ccb6a70681bb2c55c7aad6c0a3bc4c2e6d81a447c3f91ffe266a079abb5f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-27T14:46:41Z",
    "title_canon_sha256": "d9feae705912a8647204d012fe18bc3668b06e7fe35ca6b0abd272b68697a8f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5155",
    "kind": "arxiv",
    "version": 1
  }
}