Pith Number

pith:MV44G3GH

pith:2019:MV44G3GHRZZJJVHACPU4KDM2K7

not attested not anchored not stored refs pending

Prediction of galaxy halo masses in SDSS DR7 via a machine learning approach

Andreas A. Berlind, Victor F. Calderon

arxiv:1902.02680 v1 · 2019-02-07 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MV44G3GHRZZJJVHACPU4KDM2K7}

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	2026-07-05T00:11:56.496673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6579c36cc78e7294d4e013e9c50d9a57c48b3fdb8896fff14a808861628b5c56

Aliases

arxiv: 1902.02680 · arxiv_version: 1902.02680v1 · doi: 10.48550/arxiv.1902.02680 · pith_short_12: MV44G3GHRZZJ · pith_short_16: MV44G3GHRZZJJVHA · pith_short_8: MV44G3GH

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/MV44G3GHRZZJJVHACPU4KDM2K7 \
  | 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: 6579c36cc78e7294d4e013e9c50d9a57c48b3fdb8896fff14a808861628b5c56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24a7722dcf118b722fcd4b459c2bb4caba1609ce44156e3dbfbba54b68230538",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-07T15:23:01Z",
    "title_canon_sha256": "e89eec51507b361a9475a94b7efe90181c928284f07ee7bc2e46870d8ae870ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02680",
    "kind": "arxiv",
    "version": 1
  }
}