Pith Number

pith:CKUL4PVI

pith:2023:CKUL4PVIN3BOX7CC46LAEIEFLS

not attested not anchored not stored refs pending

21cmFirstCLASS II. Early linear fluctuations of the 21cm signal

Ely D. Kovetz, Jordan Flitter

arxiv:2309.03948 v3 · 2023-09-07 · 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{CKUL4PVIN3BOX7CC46LAEIEFLS}

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	2026-07-05T08:23:11.836864Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12a8be3ea86ec2ebfc42e7960220855cb5a46d6be4a49cc650556473df33fbdc

Aliases

arxiv: 2309.03948 · arxiv_version: 2309.03948v3 · doi: 10.48550/arxiv.2309.03948 · pith_short_12: CKUL4PVIN3BO · pith_short_16: CKUL4PVIN3BOX7CC · pith_short_8: CKUL4PVI

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/CKUL4PVIN3BOX7CC46LAEIEFLS \
  | 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: 12a8be3ea86ec2ebfc42e7960220855cb5a46d6be4a49cc650556473df33fbdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fd8419b5aaa6b669c169e634a600407457f5328b9ece447011bf254f47af189",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2023-09-07T18:00:02Z",
    "title_canon_sha256": "fc71d2c808329da77c644a6e7f8266892cee1104e8c81e3329474278443fbf05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.03948",
    "kind": "arxiv",
    "version": 3
  }
}