Pith Number

pith:M64MW3GS

pith:2000:M64MW3GS4HL6B3OH6M4PR3AGTE

not attested not anchored not stored refs pending

Detection of Dark Matter Concentrations in the Field of Cl 1604+4304 from Weak Lensing Analysis

Keiichi Umetsu, Toshifumi Futamase

arxiv:astro-ph/0004373 v4 · 2000-04-27 · 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{M64MW3GS4HL6B3OH6M4PR3AGTE}

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	2026-07-04T16:16:21.873978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67b8cb6cd2e1d7e0edc7f338f8ec06992b41be276e42aa5e4767570737ebfbb4

Aliases

arxiv: astro-ph/0004373 · arxiv_version: astro-ph/0004373v4 · doi: 10.48550/arxiv.astro-ph/0004373 · pith_short_12: M64MW3GS4HL6 · pith_short_16: M64MW3GS4HL6B3OH · pith_short_8: M64MW3GS

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/M64MW3GS4HL6B3OH6M4PR3AGTE \
  | 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: 67b8cb6cd2e1d7e0edc7f338f8ec06992b41be276e42aa5e4767570737ebfbb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d0ab375a1c0f407d406c35761696318edb9b5a79c2c3a41772919721b59e746",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-27T07:57:32Z",
    "title_canon_sha256": "00d622a31be0dd9d382828d722c6dabcefc48b794fba28e73bd0bbd05117e0d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004373",
    "kind": "arxiv",
    "version": 4
  }
}