Pith Number

pith:4YSLDXX7

pith:2025:4YSLDXX7FR2WSPDOF7WZXTDV7E

not attested not anchored not stored refs pending

The VMC Survey : LI. Classifying extragalactic sources using a probabilistic random forest supervised machine learning algorithm

Chandreyee Maitra, Clara M. Pennock, Francesca Dresbach, Jacco Th. van Loon, James Aird, Jessica E. M. Craig, Joana M. Oliveira, Joy. O. Anih, Maria-Rosa L. Cioni, Martin A. T. Groenewegen, Nicholas J. G. Cross, Richard de Grijs, Valentin D. Ivanov

arxiv:2501.08196 v1 · 2025-01-14 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YSLDXX7FR2WSPDOF7WZXTDV7E}

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	2026-07-05T10:00:57.368494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e624b1deff2c75693c6e2fed9bcc75f916c1c89274298b3234c9813d00e0ac60

Aliases

arxiv: 2501.08196 · arxiv_version: 2501.08196v1 · doi: 10.48550/arxiv.2501.08196 · pith_short_12: 4YSLDXX7FR2W · pith_short_16: 4YSLDXX7FR2WSPDO · pith_short_8: 4YSLDXX7

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/4YSLDXX7FR2WSPDOF7WZXTDV7E \
  | 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: e624b1deff2c75693c6e2fed9bcc75f916c1c89274298b3234c9813d00e0ac60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e555c423052c488093e199388c743769ac4342c6093d1ba617ff1898e23d10f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-14T15:21:08Z",
    "title_canon_sha256": "b54b07f87e74e6ffc4d7d5c2f49c40e85a1f0f373fb71ead16e3a74e715f2dee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.08196",
    "kind": "arxiv",
    "version": 1
  }
}