Pith Number

pith:Q2WGSPVQ

pith:2012:Q2WGSPVQZ53CIFTHUHXSZBV4AH

not attested not anchored not stored refs pending

The nature of dust in compact Galactic planetary nebulae from Spitzer spectra

A. Manchado, D. A. Garcia-Hernandez, E. Villaver, J. E. Davies, J. V. Perea-Calderon, L. Stanghellini, P. Garcia-Lario, R. A. Shaw

arxiv:1205.3829 v1 · 2012-05-16 · 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{Q2WGSPVQZ53CIFTHUHXSZBV4AH}

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	2026-05-18T01:57:26.217897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86ac693eb0cf76241667a1ef2c86bc01ea27f98c41ade606cf40589521066203

Aliases

arxiv: 1205.3829 · arxiv_version: 1205.3829v1 · doi: 10.48550/arxiv.1205.3829 · pith_short_12: Q2WGSPVQZ53C · pith_short_16: Q2WGSPVQZ53CIFTH · pith_short_8: Q2WGSPVQ

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/Q2WGSPVQZ53CIFTHUHXSZBV4AH \
  | 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: 86ac693eb0cf76241667a1ef2c86bc01ea27f98c41ade606cf40589521066203

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e187c04110bb7455de241c40ae9b610cc80717163e6bb0a8ed08a6098414f90d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-05-16T23:08:50Z",
    "title_canon_sha256": "379e16fe29d2e1910e0de292ed7169c111a9c33b4bab06bdecbe5c5578528ef9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3829",
    "kind": "arxiv",
    "version": 1
  }
}