Pith Number

pith:MUYVVVSS

pith:2021:MUYVVVSSWGQMQU7N37PIELS5KR

not attested not anchored not stored refs pending

Blueshifted hydrogen emission and shock wave of RR Lyrae variables in SDSS and LAMOST

Chao Liu, Fan Yang, Huawei Zhang, Licai Deng, Weijia Sun, Xiaodian Chen, Xiao-Wei Duan

arxiv:2107.13573 v2 · 2021-07-28 · astro-ph.SR · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MUYVVVSSWGQMQU7N37PIELS5KR}

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	2026-07-05T03:12:11.392287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65315ad652b1a0c853eddfde822e5d546f22dad4427ecf4c3df911c187b027a4

Aliases

arxiv: 2107.13573 · arxiv_version: 2107.13573v2 · doi: 10.48550/arxiv.2107.13573 · pith_short_12: MUYVVVSSWGQM · pith_short_16: MUYVVVSSWGQMQU7N · pith_short_8: MUYVVVSS

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/MUYVVVSSWGQMQU7N37PIELS5KR \
  | 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: 65315ad652b1a0c853eddfde822e5d546f22dad4427ecf4c3df911c187b027a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6055c638cf3281925ee135af0e4778e16b1028acd5f64a04a10361a61915ae48",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-07-28T18:00:04Z",
    "title_canon_sha256": "e80c34150beaf06547582b3f08170ad410cdf33dd68df420a936ed9f3e26ed12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.13573",
    "kind": "arxiv",
    "version": 2
  }
}