Pith Number

pith:IHAL4PQB

pith:2016:IHAL4PQBTCW45PYTPWBEERK4CF

not attested not anchored not stored refs pending

Deep Chandra study of the truncated cool core of the Ophiuchus cluster

A. C. Fabian, A. L. King, A. Simionescu, G. B. Taylor, I. Zhuravleva, J. S. Sanders, N. Werner, R. E. A. Canning, R. G. Morris, S. W. Allen

arxiv:1604.01038 v1 · 2016-04-04 · astro-ph.CO · astro-ph.GA · astro-ph.HE

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	2026-05-18T01:10:30.694827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41c0be3e0198adcebf137d8242455c117124ff8f55fd0f66a7c17bbf7c810ce9

Aliases

arxiv: 1604.01038 · arxiv_version: 1604.01038v1 · doi: 10.48550/arxiv.1604.01038 · pith_short_12: IHAL4PQBTCW4 · pith_short_16: IHAL4PQBTCW45PYT · pith_short_8: IHAL4PQB

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/IHAL4PQBTCW45PYTPWBEERK4CF \
  | 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: 41c0be3e0198adcebf137d8242455c117124ff8f55fd0f66a7c17bbf7c810ce9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c25a8e26c54363dea0a76fe2322a2918f93b5580d9659d6d61848d5f0697ed5",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-04-04T20:01:03Z",
    "title_canon_sha256": "cbd8fdf75fa7e7f442fa8908e0a685248b91848c5432de5a824ea47dc53fe14a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01038",
    "kind": "arxiv",
    "version": 1
  }
}