Pith Number

pith:VTYEQ5BC

pith:2019:VTYEQ5BCR2NRLFILJMFTBNSKTA

not attested not anchored not stored refs pending

Model Comparison of Dark Energy models Using Deep Network

Shi-Yu Li, Tong-Jie Zhang, Yun-Long Li

arxiv:1907.00568 v3 · 2019-07-01 · astro-ph.CO · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VTYEQ5BCR2NRLFILJMFTBNSKTA}

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	2026-07-05T00:11:35.004296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acf04874228e9b15950b4b0b30b64a9805fce430bfc07ce783a95a52dfeba12a

Aliases

arxiv: 1907.00568 · arxiv_version: 1907.00568v3 · doi: 10.48550/arxiv.1907.00568 · pith_short_12: VTYEQ5BCR2NR · pith_short_16: VTYEQ5BCR2NRLFIL · pith_short_8: VTYEQ5BC

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/VTYEQ5BCR2NRLFILJMFTBNSKTA \
  | 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: acf04874228e9b15950b4b0b30b64a9805fce430bfc07ce783a95a52dfeba12a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a0d281f3004135f1ed960bf98173f7a25797aa226ff7cfe0a0af851eb9b2831",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-07-01T06:40:30Z",
    "title_canon_sha256": "155f83d4b36cc77df344a0ebda62fc81224c186e4af6328c336c3fdbb09b5e13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00568",
    "kind": "arxiv",
    "version": 3
  }
}