Pith Number

pith:RFU3EROQ

pith:2018:RFU3EROQJQTY7TBQTTEOYZSUNM

not attested not anchored not stored refs pending

A simple model for explaining Galaxy Rotation Curves

Andrzej Borowiec, Aneta Wojnar, Ciprian A. Sporea

arxiv:1804.09620 v1 · 2018-04-25 · 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{RFU3EROQJQTY7TBQTTEOYZSUNM}

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	2026-05-18T00:10:48.766253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8969b245d04c278fcc309cc8ec66546b101bead313ed7a6690e9fcb42759ff10

Aliases

arxiv: 1804.09620 · arxiv_version: 1804.09620v1 · doi: 10.48550/arxiv.1804.09620 · pith_short_12: RFU3EROQJQTY · pith_short_16: RFU3EROQJQTY7TBQ · pith_short_8: RFU3EROQ

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/RFU3EROQJQTY7TBQTTEOYZSUNM \
  | 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: 8969b245d04c278fcc309cc8ec66546b101bead313ed7a6690e9fcb42759ff10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be2f828a3ea3a79d4214864a94c18a2b269b66f5887f25b9e766fea35e4e186b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-04-25T15:18:15Z",
    "title_canon_sha256": "fbdc46c96607c545283b8f50f4d6ab5d2650c8e0d06f6a4cde33f38789e25a54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09620",
    "kind": "arxiv",
    "version": 1
  }
}