Pith Number

pith:DA3S6LE4

pith:2025:DA3S6LE4TEEUGK5BFJYT2VUQEW

not attested not anchored not stored refs pending

Redshift drift effect through the observation of HI 21cm signal with SKA

Jiangang Kang, Ming Zhu, Peng He, Tong-Jie Zhang

arxiv:2501.15117 v1 · 2025-01-25 · 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{DA3S6LE4TEEUGK5BFJYT2VUQEW}

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	2026-07-05T10:45:16.570583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18372f2c9c9909432ba12a713d5690258bd865772c754379c9d3ba9cad5c0c06

Aliases

arxiv: 2501.15117 · arxiv_version: 2501.15117v1 · doi: 10.48550/arxiv.2501.15117 · pith_short_12: DA3S6LE4TEEU · pith_short_16: DA3S6LE4TEEUGK5B · pith_short_8: DA3S6LE4

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/DA3S6LE4TEEUGK5BFJYT2VUQEW \
  | 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: 18372f2c9c9909432ba12a713d5690258bd865772c754379c9d3ba9cad5c0c06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34fc81d1001fdd56d6b962405d3eaec6f88c0cd42c929713c70134a52d9436a2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-01-25T07:56:58Z",
    "title_canon_sha256": "b86e81ffbf0cef86a1e0298ddc40e4f55b35875739bef1873aa1213b1302d5f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.15117",
    "kind": "arxiv",
    "version": 1
  }
}