Pith Number

pith:QPTIIBWP

pith:2020:QPTIIBWPM5ZLBDIM47KQ6MKR77

not attested not anchored not stored refs pending

ECoPANN: A Framework for Estimating Cosmological Parameters using Artificial Neural Networks

Guo-Jian Wang, Jun-Qing Xia, Si-Yao Li

arxiv:2005.07089 v3 · 2020-05-14 · astro-ph.CO · astro-ph.IM · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPTIIBWPM5ZLBDIM47KQ6MKR77}

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

Testing $\Lambda$CDM with ANN-Reconstructed Expansion History from Cosmic Chronometers

Machine Learning for Multi-messenger Probes of New Physics and Cosmology: A Review and Perspective

Receipt and verification

First computed	2026-07-05T04:18:26.264650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e68406cf6772b08d0ce7d50f3151ffe36baa3e19d179ee93d3040e69ff7472

Aliases

arxiv: 2005.07089 · arxiv_version: 2005.07089v3 · doi: 10.48550/arxiv.2005.07089 · pith_short_12: QPTIIBWPM5ZL · pith_short_16: QPTIIBWPM5ZLBDIM · pith_short_8: QPTIIBWP

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/QPTIIBWPM5ZLBDIM47KQ6MKR77 \
  | 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: 83e68406cf6772b08d0ce7d50f3151ffe36baa3e19d179ee93d3040e69ff7472

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e0a8391b1424586d0e4006315a8fdecd93fa3ed4f42d06d7614cca5d6f760f3",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-05-14T15:56:01Z",
    "title_canon_sha256": "58b6bdbf7d549eaac15cb55014a3590d1433b97a41e87c57aaf26f3adfcfe39a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.07089",
    "kind": "arxiv",
    "version": 3
  }
}