Pith Number

pith:72WZP4RN

pith:2013:72WZP4RN4KJFBNMWDGRMFNUBBZ

not attested not anchored not stored refs pending

Modeling of atmospheres of the brightest stars belonging to the Cyg OB2 association

E.L Chentsov, Olga Maryeva, V.G. Klochkova

arxiv:1309.4495 v1 · 2013-09-17 · astro-ph.SR

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

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	2026-05-18T03:12:59.347230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fead97f22de29250b59619a2c2b6810e6005f8185fa8ad6d3d267db1d5d5023d

Aliases

arxiv: 1309.4495 · arxiv_version: 1309.4495v1 · doi: 10.48550/arxiv.1309.4495 · pith_short_12: 72WZP4RN4KJF · pith_short_16: 72WZP4RN4KJFBNMW · pith_short_8: 72WZP4RN

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/72WZP4RN4KJFBNMWDGRMFNUBBZ \
  | 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: fead97f22de29250b59619a2c2b6810e6005f8185fa8ad6d3d267db1d5d5023d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58dba02003324e76398f20a887dad12035531070a0ee20dbfbc88113257beb05",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-09-17T22:30:51Z",
    "title_canon_sha256": "4e4e03c51d8e50daf6e3d502306b9c74ac9ae157684d381ee83ec60cfcf4f773"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4495",
    "kind": "arxiv",
    "version": 1
  }
}