Pith Number

pith:P5ZRYJXB

pith:2010:P5ZRYJXBEEO2HUUEUG3Q7NK7JM

not attested not anchored not stored refs pending

The potential of Red Supergiants as extra-galactic abundance probes at low spectral resolution

Ben Davies (RIT/Leeds), Donald F. Figer (RIT), Rolf-Peter Kudritzki (Hawaii)

arxiv:1005.1008 v1 · 2010-05-06 · astro-ph.CO · astro-ph.GA · 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{P5ZRYJXBEEO2HUUEUG3Q7NK7JM}

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	2026-05-18T02:07:42.105608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f731c26e1211da3d284a1b70fb55f4b348ccf787e7b56040cf9041d2bfef832

Aliases

arxiv: 1005.1008 · arxiv_version: 1005.1008v1 · doi: 10.48550/arxiv.1005.1008 · pith_short_12: P5ZRYJXBEEO2 · pith_short_16: P5ZRYJXBEEO2HUUE · pith_short_8: P5ZRYJXB

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/P5ZRYJXBEEO2HUUEUG3Q7NK7JM \
  | 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: 7f731c26e1211da3d284a1b70fb55f4b348ccf787e7b56040cf9041d2bfef832

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d198ea3222613483c551313351153edb5ee025a888d411f482383c1942a3c494",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-05-06T14:18:45Z",
    "title_canon_sha256": "4dc5bc87a6a7bcc74b8754d35408a84471c23e99096e78d967a8d80e36008efb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1008",
    "kind": "arxiv",
    "version": 1
  }
}