Pith Number

pith:MXAB22CL

pith:2017:MXAB22CLISAPKKY76JFMC43AWX

not attested not anchored not stored refs pending

Digging for red nuggets: discovery of hot halos surrounding massive, compact, relic galaxies

A. Simionescu, K. Lakhchaura, M. Gaspari, N. Werner, R. E. A. Canning

arxiv:1711.09983 v2 · 2017-11-27 · 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	2026-05-18T00:17:42.126875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65c01d684b4480f52b1ff24ac17360b5f24dc4821703d97d305877bc52719a72

Aliases

arxiv: 1711.09983 · arxiv_version: 1711.09983v2 · doi: 10.48550/arxiv.1711.09983 · pith_short_12: MXAB22CLISAP · pith_short_16: MXAB22CLISAPKKY7 · pith_short_8: MXAB22CL

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/MXAB22CLISAPKKY76JFMC43AWX \
  | 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: 65c01d684b4480f52b1ff24ac17360b5f24dc4821703d97d305877bc52719a72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "253b8b8fda7a3255441acacffa09153653a3ec7e2e96d2e4007deea81ded389c",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-11-27T20:46:23Z",
    "title_canon_sha256": "98ef9101e8f80024d9c42ac7dede0429b7d51c248d78b82d1abdec9b53b8a284"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.09983",
    "kind": "arxiv",
    "version": 2
  }
}