Pith Number

pith:GHUSPFTR

pith:2009:GHUSPFTRULLTOZW74EWACAWBDI

not attested not anchored not stored refs pending

Spitzer observations of molecules and dust in evolved stars in nearby galaxies

Mikako Matsuura (UCL)

arxiv:0909.4972 v1 · 2009-09-27 · astro-ph.SR · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GHUSPFTRULLTOZW74EWACAWBDI}

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	2026-05-18T02:11:37.158828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31e9279671a2d73766dfe12c0102c11a28a89998802a92a5e892e8775a2245bd

Aliases

arxiv: 0909.4972 · arxiv_version: 0909.4972v1 · doi: 10.48550/arxiv.0909.4972 · pith_short_12: GHUSPFTRULLT · pith_short_16: GHUSPFTRULLTOZW7 · pith_short_8: GHUSPFTR

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/GHUSPFTRULLTOZW74EWACAWBDI \
  | 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: 31e9279671a2d73766dfe12c0102c11a28a89998802a92a5e892e8775a2245bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bd4f6105a4a68773d6aa3b641581f7251b39fc5c6c2ca7dafb60795f4c42f5e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-27T22:25:05Z",
    "title_canon_sha256": "1a44b1816385849bc97a23a17f11bb0b4b249f70f9e3e2960293e1994e4475df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4972",
    "kind": "arxiv",
    "version": 1
  }
}