Pith Number

pith:PNSU7V5Y

pith:2022:PNSU7V5YGPJQQFK5Z4YMAYVLLT

not attested not anchored not stored refs pending

Imprints of fermionic and bosonic mixed dark matter on the 21-cm signal at cosmic dawn

Aurel Schneider, Sambit K. Giri

arxiv:2201.02210 v2 · 2022-01-06 · 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{PNSU7V5YGPJQQFK5Z4YMAYVLLT}

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	2026-07-05T04:19:51.451620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b654fd7b833d308155dcf30c062ab5cf3e491e042d9fbcb244b54650a0225e2

Aliases

arxiv: 2201.02210 · arxiv_version: 2201.02210v2 · doi: 10.48550/arxiv.2201.02210 · pith_short_12: PNSU7V5YGPJQ · pith_short_16: PNSU7V5YGPJQQFK5 · pith_short_8: PNSU7V5Y

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/PNSU7V5YGPJQQFK5Z4YMAYVLLT \
  | 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: 7b654fd7b833d308155dcf30c062ab5cf3e491e042d9fbcb244b54650a0225e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b874d3c5b3a8048ccbe3a4ad5ddca9bd370417dccef60220aca01c5fd789d3a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-01-06T19:00:29Z",
    "title_canon_sha256": "9d9596619d70ff25cde13e53af2d1c9b4e2df1191ff90bd34e5aa175c2bc32d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.02210",
    "kind": "arxiv",
    "version": 2
  }
}