Pith Number

pith:2Y5R4ZSE

pith:2010:2Y5R4ZSEJN7GZYCVXULPT4GOIJ

not attested not anchored not stored refs pending

Planetary nebulae in M33: probes of AGB nucleosynthesis and ISM abundances

Erik Rosolowsky (UBC Okanagan), Fabio Bresolin (IfA, Grazyna Stasinska (LUTH, Jose M. Vilchez (IAA-CSIC Granada), Josh D. Simon (Carnegie Observatories), Observatoire de Paris), U. Hawaii Honolulu)

arxiv:1001.4068 v1 · 2010-01-22 · 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{2Y5R4ZSEJN7GZYCVXULPT4GOIJ}

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	2026-05-18T02:09:30.958219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d63b1e66444b7e6ce055bd16f9f0ce426bd753612c53417811337fa091172e13

Aliases

arxiv: 1001.4068 · arxiv_version: 1001.4068v1 · doi: 10.48550/arxiv.1001.4068 · pith_short_12: 2Y5R4ZSEJN7G · pith_short_16: 2Y5R4ZSEJN7GZYCV · pith_short_8: 2Y5R4ZSE

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/2Y5R4ZSEJN7GZYCVXULPT4GOIJ \
  | 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: d63b1e66444b7e6ce055bd16f9f0ce426bd753612c53417811337fa091172e13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "279c376abd84d0569914ef2f78325061e63f587d372fde5793c00e0dba20d213",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-01-22T20:13:51Z",
    "title_canon_sha256": "5bf648b2d6f2574d2e1d2a1e8356763e71c36c6c78f6455796acf4259c7cd2f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4068",
    "kind": "arxiv",
    "version": 1
  }
}