Pith Number

pith:BAMOARRB

pith:2020:BAMOARRBRFX4Y7FERD3L2E4DUL

not attested not anchored not stored refs pending

Machine learning applied to simulations of collisions between rotating, differentiated planets

Joachim Stadel, Maria Han Veiga, Miles Timpe, Mischa Knabenhans, Stefano Marelli

arxiv:2001.09542 v1 · 2020-01-27 · astro-ph.EP · astro-ph.IM · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BAMOARRBRFX4Y7FERD3L2E4DUL}

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	2026-07-05T01:56:28.924583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0818e04621896fcc7ca488f6bd1383a2cfc24baf6135a7b767157316274fb960

Aliases

arxiv: 2001.09542 · arxiv_version: 2001.09542v1 · doi: 10.48550/arxiv.2001.09542 · pith_short_12: BAMOARRBRFX4 · pith_short_16: BAMOARRBRFX4Y7FE · pith_short_8: BAMOARRB

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/BAMOARRBRFX4Y7FERD3L2E4DUL \
  | 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: 0818e04621896fcc7ca488f6bd1383a2cfc24baf6135a7b767157316274fb960

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e21e5785f83facec539b93fff3d0181040f7a49da5c714869a323aa9f22f7f0",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-01-27T00:06:57Z",
    "title_canon_sha256": "07253877b5d35bf4bf073135f4f92fa5d7d639eef15687aa2caf56dc01772693"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.09542",
    "kind": "arxiv",
    "version": 1
  }
}