Pith Number

pith:HPUCI75B

pith:2025:HPUCI75BR7FKGV4YTJC7GS7DCN

not attested not anchored not stored refs pending

Clustered unified dark sector cosmology: Background evolution and linear perturbations in light of observations

Amr El-Zant, Mahmoud Hashim

arxiv:2502.01751 v1 · 2025-02-03 · 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{HPUCI75BR7FKGV4YTJC7GS7DCN}

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	2026-07-05T10:09:18.587478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3be8247fa18fcaa357989a45f34be3136a6ddeca4d38ef3400fc572c6ddd98ea

Aliases

arxiv: 2502.01751 · arxiv_version: 2502.01751v1 · doi: 10.48550/arxiv.2502.01751 · pith_short_12: HPUCI75BR7FK · pith_short_16: HPUCI75BR7FKGV4Y · pith_short_8: HPUCI75B

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/HPUCI75BR7FKGV4YTJC7GS7DCN \
  | 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: 3be8247fa18fcaa357989a45f34be3136a6ddeca4d38ef3400fc572c6ddd98ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f78d61de059fb2e6a6d44db803466b4f5ceaef4b4d2b4a75d248f38a5c72b835",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-02-03T19:00:22Z",
    "title_canon_sha256": "a9896fcc4645497ba67d0611e933780a57c490370aed140c0a735b4a2699d538"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.01751",
    "kind": "arxiv",
    "version": 1
  }
}