Pith Number

pith:AJEZ3P6R

pith:2021:AJEZ3P6RQSO2OBKIAL5TYA7XBC

not attested not anchored not stored refs pending

Blue supergiants as tests for stellar physics

(2) Tohoku University), Cyril Georgy (1), Georges Meynet (1) ((1) Geneva University, Hideyuki Saio (2)

arxiv:2104.06278 v1 · 2021-04-13 · 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{AJEZ3P6RQSO2OBKIAL5TYA7XBC}

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	2026-07-05T02:51:23.052024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02499dbfd1849da7054802fb3c03f708a6f374bbc7a9c44d0a7ba865d2d4a172

Aliases

arxiv: 2104.06278 · arxiv_version: 2104.06278v1 · doi: 10.48550/arxiv.2104.06278 · pith_short_12: AJEZ3P6RQSO2 · pith_short_16: AJEZ3P6RQSO2OBKI · pith_short_8: AJEZ3P6R

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/AJEZ3P6RQSO2OBKIAL5TYA7XBC \
  | 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: 02499dbfd1849da7054802fb3c03f708a6f374bbc7a9c44d0a7ba865d2d4a172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bdd2862ec745afdffcb16f813cfc3c149adccef254fb7e7c24c246b7629bb76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-04-13T15:10:05Z",
    "title_canon_sha256": "f55dc248674f3be10079190e667f9a454df49a655bb1a4e243508f29c91298e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.06278",
    "kind": "arxiv",
    "version": 1
  }
}