Pith Number

pith:BGNYPZ4J

pith:2016:BGNYPZ4JOIGA22SO2OCIOKXYWH

not attested not anchored not stored refs pending

Estimating the Mass of the Local Group using Machine Learning Applied to Numerical Simulations

Michael McLeod, Noam Libeskind, Ofer Lahav, Yehuda Hoffman

arxiv:1606.02694 v3 · 2016-06-08 · astro-ph.GA · 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{BGNYPZ4JOIGA22SO2OCIOKXYWH}

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	2026-05-18T00:27:22.266115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

099b87e789720c0d6a4ed384872af8b1fa4999c0b99d6f3fc89047b2087bb48e

Aliases

arxiv: 1606.02694 · arxiv_version: 1606.02694v3 · doi: 10.48550/arxiv.1606.02694 · pith_short_12: BGNYPZ4JOIGA · pith_short_16: BGNYPZ4JOIGA22SO · pith_short_8: BGNYPZ4J

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/BGNYPZ4JOIGA22SO2OCIOKXYWH \
  | 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: 099b87e789720c0d6a4ed384872af8b1fa4999c0b99d6f3fc89047b2087bb48e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1aa9de565b1c3ed4ed9b66417b7289eb20e44f0237827f8e9a2979c6d73c01ca",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-06-08T19:24:37Z",
    "title_canon_sha256": "56bf93f2b6b8f2a7b7dbac40ca1e721a8a9710cd5300fa7c5adbcbd7631c5078"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.02694",
    "kind": "arxiv",
    "version": 3
  }
}