Pith Number

pith:HZWKCCAN

pith:2019:HZWKCCANA4FOBP5IVXMGUNXAPM

not attested not anchored not stored refs pending

Formation of disc galaxies around z~2

Ajit Kembhavi, Kanak Saha, Rupjyoti Gogoi, Somak Raychaudhury, Sonali Sachdeva

arxiv:1905.08432 v1 · 2019-05-21 · 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	2026-05-17T23:43:22.924974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e6ca1080d070ae0bfa8add86a36e07b13df292c67f0fb4c0a5faba8036c29a2

Aliases

arxiv: 1905.08432 · arxiv_version: 1905.08432v1 · doi: 10.48550/arxiv.1905.08432 · pith_short_12: HZWKCCANA4FO · pith_short_16: HZWKCCANA4FOBP5I · pith_short_8: HZWKCCAN

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/HZWKCCANA4FOBP5IVXMGUNXAPM \
  | 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: 3e6ca1080d070ae0bfa8add86a36e07b13df292c67f0fb4c0a5faba8036c29a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f12f8147ac16b80585a3e9fd4a13d8915800463483102d82af4283ecc160c65c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-21T03:41:44Z",
    "title_canon_sha256": "d6761640ca39bf968d94bcb0952a4bcfad5ce02ef591d1a0736f013de26ff63c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08432",
    "kind": "arxiv",
    "version": 1
  }
}