Pith Number

pith:WW65ZVOZ

pith:2009:WW65ZVOZGOKNYJMDREPPDIOMMF

not attested not anchored not stored refs pending

New fundamental parameters of the Galactic open clusters Berkeley 26, Czernik 27, Melotte 72, NGC 2479 and BH 37

Andrea V. Ahumada, Andres E. Piatti, Juan J. Claria

arxiv:0912.1170 v1 · 2009-12-07 · astro-ph.GA

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	2026-05-18T02:10:26.063239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5bddcd5d93394dc2583891ef1a1cc614ee1923197cd5c0370929e969f5872e6

Aliases

arxiv: 0912.1170 · arxiv_version: 0912.1170v1 · doi: 10.48550/arxiv.0912.1170 · pith_short_12: WW65ZVOZGOKN · pith_short_16: WW65ZVOZGOKNYJMD · pith_short_8: WW65ZVOZ

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/WW65ZVOZGOKNYJMDREPPDIOMMF \
  | 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: b5bddcd5d93394dc2583891ef1a1cc614ee1923197cd5c0370929e969f5872e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f231222a95e97b4ab044c0517476002a7330ed17dbdcb4f533ee36f0d56f2b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-12-07T06:54:41Z",
    "title_canon_sha256": "e9ccc3e82311ee2a492c67e6f4086749229f36ff164be3c03c7e3f952671c805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1170",
    "kind": "arxiv",
    "version": 1
  }
}