Pith Number

pith:B4UGRXG2

pith:2026:B4UGRXG2LFG7SUOBZPHHDJKSFT

not attested not anchored not stored refs pending

Dark Matter with a Drag at Low Redshift

Eashwar N. Sivarajan, Martin Schmaltz

arxiv:2606.12521 v1 · 2026-06-10 · 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{B4UGRXG2LFG7SUOBZPHHDJKSFT}

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	2026-06-12T00:07:53.325550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f2868dcda594df951c1cbce71a5522cc67fc3cdb99284387c559a69717e91fb

Aliases

arxiv: 2606.12521 · arxiv_version: 2606.12521v1 · doi: 10.48550/arxiv.2606.12521 · pith_short_12: B4UGRXG2LFG7 · pith_short_16: B4UGRXG2LFG7SUOB · pith_short_8: B4UGRXG2

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/B4UGRXG2LFG7SUOBZPHHDJKSFT \
  | 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: 0f2868dcda594df951c1cbce71a5522cc67fc3cdb99284387c559a69717e91fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a85633e7c0f77ca3ffa5c4d7953557f1615d59d40d795cc4fa8a6f318acad63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-06-10T18:00:01Z",
    "title_canon_sha256": "d43ef3c7118d5aa363ada1d2d73a2b0ff5cbf76a08e1ce23992907f5de936f75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.12521",
    "kind": "arxiv",
    "version": 1
  }
}