Pith Number

pith:SAFOUJ7F

pith:2011:SAFOUJ7FDJXZVOEJPWD3IN5M66

not attested not anchored not stored refs pending

Tracing the Gas to the Virial Radius (R100) in a Fossil Group

David A. Buote, Fabio Gastaldello, Fabrizio Brighenti, Helene M. L. G. Flohic, Philip J. Humphrey, William G. Mathews

arxiv:1106.3322 v3 · 2011-06-16 · astro-ph.CO

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	2026-05-18T02:01:36.058128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

900aea27e51a6f9ab8897d87b437acf791d215b46e477d04878cd24701fcd502

Aliases

arxiv: 1106.3322 · arxiv_version: 1106.3322v3 · doi: 10.48550/arxiv.1106.3322 · pith_short_12: SAFOUJ7FDJXZ · pith_short_16: SAFOUJ7FDJXZVOEJ · pith_short_8: SAFOUJ7F

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/SAFOUJ7FDJXZVOEJPWD3IN5M66 \
  | 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: 900aea27e51a6f9ab8897d87b437acf791d215b46e477d04878cd24701fcd502

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cddd6b242492621e9ee6de5f15071a12d56aa6980055b418d61604d34c5672f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-06-16T19:49:37Z",
    "title_canon_sha256": "ac023859df46108dc2db5b8c5db29d2b39dcc4caf3a7c062bad3682fa74cb64a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.3322",
    "kind": "arxiv",
    "version": 3
  }
}