Pith Number

pith:L6SL4XRK

pith:2019:L6SL4XRKKB6NYN3GEZOZEXIXJ5

not attested not anchored not stored refs pending

FDL: Mission Support Challenge

Ben Day, Callum Wilson, Chris Bridges, Lu\'is F. Sim\~oes, Sylvester Kaczmarek, Vinutha M. Shreenath, Yarin Gal

arxiv:1912.09279 v1 · 2019-12-17 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L6SL4XRKKB6NYN3GEZOZEXIXJ5}

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	2026-07-05T00:27:25.301336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fa4be5e2a507cdc3766265d925d174f53352a626949dbb4d309501d9e6b7172

Aliases

arxiv: 1912.09279 · arxiv_version: 1912.09279v1 · doi: 10.48550/arxiv.1912.09279 · pith_short_12: L6SL4XRKKB6N · pith_short_16: L6SL4XRKKB6NYN3G · pith_short_8: L6SL4XRK

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/L6SL4XRKKB6NYN3GEZOZEXIXJ5 \
  | 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: 5fa4be5e2a507cdc3766265d925d174f53352a626949dbb4d309501d9e6b7172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9360f16dbf099cb03cbcf1070c8983708ff72344e712e47c36f4939af33599fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-12-17T21:22:30Z",
    "title_canon_sha256": "00739b37a7478b604b131f0921184bfbad32cc2886f72ef06caa72b28a43526f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.09279",
    "kind": "arxiv",
    "version": 1
  }
}