Pith Number

pith:AUGVBWQJ

pith:2008:AUGVBWQJY5GU3HFCEAQPKBO3HJ

not attested not anchored not stored refs pending

The Extragalactic Distance Scale without Cepheids

Jeremy Mould, Shoko Sakai

arxiv:0809.0568 v1 · 2008-09-03 · 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{AUGVBWQJY5GU3HFCEAQPKBO3HJ}

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	2026-05-18T04:29:32.900278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

050d50da09c74d4d9ca22020f505db3a756532ede42476bba51c0c5fc265e4cf

Aliases

arxiv: 0809.0568 · arxiv_version: 0809.0568v1 · doi: 10.48550/arxiv.0809.0568 · pith_short_12: AUGVBWQJY5GU · pith_short_16: AUGVBWQJY5GU3HFC · pith_short_8: AUGVBWQJ

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/AUGVBWQJY5GU3HFCEAQPKBO3HJ \
  | 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: 050d50da09c74d4d9ca22020f505db3a756532ede42476bba51c0c5fc265e4cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd0294b986ff0531e2a0e85dadabeee65e7618a2435dac1aa8fccb01b3698925",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-03T08:42:00Z",
    "title_canon_sha256": "09bbd9e1adbfb9b4c6dc04d0e42dc9b275fa50f9351b2e6c7150f3a72cbed90b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.0568",
    "kind": "arxiv",
    "version": 1
  }
}