Pith Number

pith:QRNOVZ7A

pith:2020:QRNOVZ7ARCGIC5FF2UW6T5WDPW

not attested not anchored not stored refs pending

Stellar initial mass function variation in massive early-type galaxies: the potential role of the deuterium abundance

Freeke van de Voort, Timothy A. Davis

arxiv:2009.00616 v1 · 2020-09-01 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRNOVZ7ARCGIC5FF2UW6T5WDPW}

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.

Cited by

2 papers in Pith

AI and physics-based weather forecasting: A comparative study

Achieving Skilled and Reliable Daily Probabilistic Forecasts of Wind Power at Subseasonal-to-Seasonal Timescales over France

Receipt and verification

First computed	2026-07-05T01:40:43.326412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

845aeae7e0888c8174a5d52de9f6c37d9e3007e9402e4c345bdc0e8b06942d3a

Aliases

arxiv: 2009.00616 · arxiv_version: 2009.00616v1 · doi: 10.48550/arxiv.2009.00616 · pith_short_12: QRNOVZ7ARCGI · pith_short_16: QRNOVZ7ARCGIC5FF · pith_short_8: QRNOVZ7A

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/QRNOVZ7ARCGIC5FF2UW6T5WDPW \
  | 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: 845aeae7e0888c8174a5d52de9f6c37d9e3007e9402e4c345bdc0e8b06942d3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b463074d5f813a93fa0a5290ac456c512525ee6240e743433f38c5ba672e964",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-09-01T18:00:00Z",
    "title_canon_sha256": "19b41ec3dcbe1c40684e5f0da1717cc236481362006644a6efcbb37b059e0020"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.00616",
    "kind": "arxiv",
    "version": 1
  }
}