Pith Number

pith:5H7KHLSO

pith:2021:5H7KHLSOWKWJ3LCRLLK3UWMLVR

not attested not anchored not stored refs pending

Particle Dynamics in 3D Self-gravitating Disks I: Spirals

Hans Baehr, Zhaohuan Zhu

arxiv:2101.01888 v2 · 2021-01-06 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5H7KHLSOWKWJ3LCRLLK3UWMLVR}

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	2026-07-05T02:25:33.401901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9fea3ae4eb2ac9dac515ad5ba598bac69467d28324ca645e6ee65e9f6b59afe

Aliases

arxiv: 2101.01888 · arxiv_version: 2101.01888v2 · doi: 10.48550/arxiv.2101.01888 · pith_short_12: 5H7KHLSOWKWJ · pith_short_16: 5H7KHLSOWKWJ3LCR · pith_short_8: 5H7KHLSO

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/5H7KHLSOWKWJ3LCRLLK3UWMLVR \
  | 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: e9fea3ae4eb2ac9dac515ad5ba598bac69467d28324ca645e6ee65e9f6b59afe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6cde8cfb394d032643fc64066d33e7604898db49a1731e7cd927fe916f982cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-01-06T06:24:16Z",
    "title_canon_sha256": "084aeb2419f211c1795372ecb593836e1d83c8ac3e77d9193b27f289fb1e0659"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.01888",
    "kind": "arxiv",
    "version": 2
  }
}