Pith Number

pith:DBTS55XY

pith:1999:DBTS55XYKJZGFNUWWPXVYQLDWU

not attested not anchored not stored refs pending

A measurement of the transverse velocity of Q2237+0305

E. L. Turner, J. S. B. Wyithe, R. L. Webster

arxiv:astro-ph/9901341 v2 · 1999-01-25 · 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{DBTS55XYKJZGFNUWWPXVYQLDWU}

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	2026-07-04T16:10:39.081597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18672ef6f8527262b696b3ef5c4163b51833e7e0984f7f61514be71943332343

Aliases

arxiv: astro-ph/9901341 · arxiv_version: astro-ph/9901341v2 · doi: 10.48550/arxiv.astro-ph/9901341 · pith_short_12: DBTS55XYKJZG · pith_short_16: DBTS55XYKJZGFNUW · pith_short_8: DBTS55XY

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/DBTS55XYKJZGFNUWWPXVYQLDWU \
  | 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: 18672ef6f8527262b696b3ef5c4163b51833e7e0984f7f61514be71943332343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d5879b6b46cb1409186d2d0b326b25ca5d76b1eab86540f2f1f6efdc25c68cf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-25T05:31:40Z",
    "title_canon_sha256": "bdfc979bf3607a0ad615e4529133c325f03db194185c675980472b9811eacd3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901341",
    "kind": "arxiv",
    "version": 2
  }
}