Pith Number

pith:W3UPENX2

pith:2001:W3UPENX2EK3BAT27XRJNKB7Q3K

not attested not anchored not stored refs pending

Two-Dimensional Topology of the 2dF Galaxy Redshift Survey

Fiona Hoyle (Drexel), J. Richard Gott III (Princeton), Michael S. Vogeley (Drexel)

arxiv:astro-ph/0111546 v1 · 2001-11-28 · 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{W3UPENX2EK3BAT27XRJNKB7Q3K}

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	2026-05-18T04:15:48.987971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6e8f236fa22b6104f5fbc52d507f0da948b62ca45c2dd9b170dc41fe22c2c4b

Aliases

arxiv: astro-ph/0111546 · arxiv_version: astro-ph/0111546v1 · doi: 10.48550/arxiv.astro-ph/0111546 · pith_short_12: W3UPENX2EK3B · pith_short_16: W3UPENX2EK3BAT27 · pith_short_8: W3UPENX2

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/W3UPENX2EK3BAT27XRJNKB7Q3K \
  | 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: b6e8f236fa22b6104f5fbc52d507f0da948b62ca45c2dd9b170dc41fe22c2c4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dd3d220d3f20960760c936c8270f4c07403beafcb3711e6c8760916cf734854",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-28T22:17:09Z",
    "title_canon_sha256": "d8a00889e83eeba97c1526166838b96bf6d9641acd634f5dcdba638c1f897861"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111546",
    "kind": "arxiv",
    "version": 1
  }
}