Pith Number

pith:4EWZW3DU

pith:2019:4EWZW3DUAYBSEEGXSBS7J6MYWD

not attested not anchored not stored refs pending

Exploiting flux ratio anomalies to probe warm dark matter in future large scale surveys

Alexey Boyarsky, Amelie Tamone, David Harvey, Frederic Courbin, Mark Lovell, Wessel Valkenburg

arxiv:1912.02196 v1 · 2019-12-04 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4EWZW3DUAYBSEEGXSBS7J6MYWD}

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	2026-07-05T00:30:38.478022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e12d9b6c7406032210d79065f4f998b0f9290a64b604124ff50232951bec8e78

Aliases

arxiv: 1912.02196 · arxiv_version: 1912.02196v1 · doi: 10.48550/arxiv.1912.02196 · pith_short_12: 4EWZW3DUAYBS · pith_short_16: 4EWZW3DUAYBSEEGX · pith_short_8: 4EWZW3DU

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/4EWZW3DUAYBSEEGXSBS7J6MYWD \
  | 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: e12d9b6c7406032210d79065f4f998b0f9290a64b604124ff50232951bec8e78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b41d98a819910202841dceb3f8f54815376babae57a88dea786209bf9ca738b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-12-04T19:00:03Z",
    "title_canon_sha256": "40a4e6e7e80fd86ad0387708fa21203283eb4744cf4060dbf9fed939421576f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.02196",
    "kind": "arxiv",
    "version": 1
  }
}