Pith Number

pith:EXLPYHKR

pith:2019:EXLPYHKR565E34YGX4OOBSHK5D

not attested not anchored not stored refs pending

Star Formation Rates for photometric samples of galaxies using machine learning methods

G. Longo, G. Riccio, M. Brescia, M. Delli Veneri, S. Cavuoti

arxiv:1902.02522 v6 · 2019-02-07 · astro-ph.IM · 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{EXLPYHKR565E34YGX4OOBSHK5D}

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	2026-05-17T23:44:02.489907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25d6fc1d51efba4df306bf1ce0c8eae8c7c62aff44ccafd281916ba391020b81

Aliases

arxiv: 1902.02522 · arxiv_version: 1902.02522v6 · doi: 10.48550/arxiv.1902.02522 · pith_short_12: EXLPYHKR565E · pith_short_16: EXLPYHKR565E34YG · pith_short_8: EXLPYHKR

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/EXLPYHKR565E34YGX4OOBSHK5D \
  | 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: 25d6fc1d51efba4df306bf1ce0c8eae8c7c62aff44ccafd281916ba391020b81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97f073c95145d4c0723909cb80e24fdd0eaaffdca60ebdb33d2006e4686593a3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-02-07T08:51:13Z",
    "title_canon_sha256": "776bc8690e62568dfdd619988fa762a2244cac2c7fe7848fd5882b7a2cc970f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02522",
    "kind": "arxiv",
    "version": 6
  }
}