Pith Number

pith:BP2RYP54

pith:2013:BP2RYP54Q4A4H7ZVHIHXC7SJOY

not attested not anchored not stored refs pending

Effects of spacetime anisotropy on the galaxy rotation curves

Hai-Nan Lin, Ming-Hua Li, Sai Wang, Xin Li, Zhe Chang

arxiv:1305.2314 v2 · 2013-05-10 · astro-ph.GA · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BP2RYP54Q4A4H7ZVHIHXC7SJOY}

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	2026-05-18T03:24:53.615169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bf51c3fbc8701c3ff353a0f717e49761f58d6b7f72c5bac57e3a29ad3f26810

Aliases

arxiv: 1305.2314 · arxiv_version: 1305.2314v2 · doi: 10.48550/arxiv.1305.2314 · pith_short_12: BP2RYP54Q4A4 · pith_short_16: BP2RYP54Q4A4H7ZV · pith_short_8: BP2RYP54

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/BP2RYP54Q4A4H7ZVHIHXC7SJOY \
  | 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: 0bf51c3fbc8701c3ff353a0f717e49761f58d6b7f72c5bac57e3a29ad3f26810

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef3cb4286e6d7b82f1acfd67f8213c49c9bde9723769c1200b3338021a7c0a92",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-05-10T11:32:54Z",
    "title_canon_sha256": "8329146c4bfff898102d7ca0f858a16d72a7b1dfd04335972bcc9bf83a1a38d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2314",
    "kind": "arxiv",
    "version": 2
  }
}