Pith Number

pith:2URI6ZPU

pith:2006:2URI6ZPUH37K5ST24L7IRZTRYX

not attested not anchored not stored refs pending

WMAP First Year Sky Map: Hints of Poincare Dodecahedral Topology

Boudewijn F. Roukema

arxiv:astro-ph/0602401 v2 · 2006-02-17 · 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{2URI6ZPUH37K5ST24L7IRZTRYX}

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	2026-05-18T00:54:21.375270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5228f65f43efeaeca7ae2fe88e671c5e45e828a0509bfcc41b9a7f147942056

Aliases

arxiv: astro-ph/0602401 · arxiv_version: astro-ph/0602401v2 · doi: 10.48550/arxiv.astro-ph/0602401 · pith_short_12: 2URI6ZPUH37K · pith_short_16: 2URI6ZPUH37K5ST2 · pith_short_8: 2URI6ZPU

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/2URI6ZPUH37K5ST24L7IRZTRYX \
  | 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: d5228f65f43efeaeca7ae2fe88e671c5e45e828a0509bfcc41b9a7f147942056

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccb5ff43bc58e0297100c8f7fa1ca024e5dc119d94be03417441cca4395e0e60",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-02-17T15:56:36Z",
    "title_canon_sha256": "6a89373a6f38f35af8799b95acb4034adc10b11add94849dcd7731bc1ab18473"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0602401",
    "kind": "arxiv",
    "version": 2
  }
}