Pith Number

pith:6GFHVZU6

pith:2002:6GFHVZU6P2NKFADMHHNLI2MSFU

not attested not anchored not stored refs pending

Iteration Method to Derive Exact Rotation Curves from Position-Velocity Diagrams of Spiral Galaxies

Tsutomu TAKAMIYA, Univ. Tokyo), Yoshiaki SOFUE (IoA

arxiv:astro-ph/0207208 v1 · 2002-07-10 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6GFHVZU6P2NKFADMHHNLI2MSFU}

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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	2026-07-04T16:30:21.179167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f18a7ae69e7e9aa2806c39dab469922d3e0f96322b397839265da0e8fe921c31

Aliases

arxiv: astro-ph/0207208 · arxiv_version: astro-ph/0207208v1 · doi: 10.48550/arxiv.astro-ph/0207208 · pith_short_12: 6GFHVZU6P2NK · pith_short_16: 6GFHVZU6P2NKFADM · pith_short_8: 6GFHVZU6

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/6GFHVZU6P2NKFADMHHNLI2MSFU \
  | 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: f18a7ae69e7e9aa2806c39dab469922d3e0f96322b397839265da0e8fe921c31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "707d30e734a3da7e93aa7eade175db5fd2336b0b38f08890fd9be7d17c449367",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-07-10T09:26:19Z",
    "title_canon_sha256": "044824f30a40c75ba5711604bd31829570a3595be4a17075b29457e91a6b5512"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0207208",
    "kind": "arxiv",
    "version": 1
  }
}