Pith Number

pith:7Y6UAJZV

pith:2019:7Y6UAJZV6JZLF2S2R74SBSSICZ

not attested not anchored not stored refs pending

Simulating the impact of the Smith Cloud

A. Burkert, C. Alig, C. L. Dobbs, N. Borodatchenkova, S. Hammer

arxiv:1901.01639 v1 · 2019-01-07 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7Y6UAJZV6JZLF2S2R74SBSSICZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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	2026-05-17T23:56:51.566267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe3d402735f272b2ea5a8ff920ca4816531908a89043ee6f84e83870bc8aca66

Aliases

arxiv: 1901.01639 · arxiv_version: 1901.01639v1 · doi: 10.48550/arxiv.1901.01639 · pith_short_12: 7Y6UAJZV6JZL · pith_short_16: 7Y6UAJZV6JZLF2S2 · pith_short_8: 7Y6UAJZV

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/7Y6UAJZV6JZLF2S2R74SBSSICZ \
  | 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: fe3d402735f272b2ea5a8ff920ca4816531908a89043ee6f84e83870bc8aca66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab2a825af4c9434311f85e4f4c0062d1fc92fb18c16c893154c78ff5b2c9e50e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-07T01:43:10Z",
    "title_canon_sha256": "5808768731c0fc40e2e1fecb3fdd90655804c1c2f66ff1196d39aafb3db160bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01639",
    "kind": "arxiv",
    "version": 1
  }
}