Pith Number

pith:ZK6K6KL5

pith:2012:ZK6K6KL5MXGHTWM3QJ5RDLDDQJ

not attested not anchored not stored refs pending

The distribution of metals in hot DA white dwarfs

I. Hubeny, M.A. Barstow, N.J. Dickinson

arxiv:1201.2940 v1 · 2012-01-13 · 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	2026-05-18T03:58:04.226206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cabcaf297d65cc79d99b827b11ac638241bbdd416cfc6252e8f1f4051b17c8d5

Aliases

arxiv: 1201.2940 · arxiv_version: 1201.2940v1 · doi: 10.48550/arxiv.1201.2940 · pith_short_12: ZK6K6KL5MXGH · pith_short_16: ZK6K6KL5MXGHTWM3 · pith_short_8: ZK6K6KL5

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/ZK6K6KL5MXGHTWM3QJ5RDLDDQJ \
  | 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: cabcaf297d65cc79d99b827b11ac638241bbdd416cfc6252e8f1f4051b17c8d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f11f1d0fbf03ee853297445ae7e382e29cb94eba626d57979a2a5c5df0263d69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-13T21:00:00Z",
    "title_canon_sha256": "89f12e2a0336560b06e52ddbd04b59c28e1daf3be8c6da8b5c94c075656f39d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2940",
    "kind": "arxiv",
    "version": 1
  }
}