Pith Number

pith:U4Q6D2SM

pith:2019:U4Q6D2SMZDLWHPBMKIELKTVVPV

not attested not anchored not stored refs pending

Cosmicflows-3: Cosmography of the Local Void

Daniel Pomarede, Edward J Shaya, Helene M Courtois, R Brent Tully, Romain Graziani, Yehuda Hoffman

arxiv:1905.08329 v1 · 2019-05-20 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4Q6D2SMZDLWHPBMKIELKTVVPV}

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	2026-07-04T23:50:18.411425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a721e1ea4cc8d763bc2c5208b54eb57d53fd15ce075ab47e78c11f3deb99fe3d

Aliases

arxiv: 1905.08329 · arxiv_version: 1905.08329v1 · doi: 10.48550/arxiv.1905.08329 · pith_short_12: U4Q6D2SMZDLW · pith_short_16: U4Q6D2SMZDLWHPBM · pith_short_8: U4Q6D2SM

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/U4Q6D2SMZDLWHPBMKIELKTVVPV \
  | 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: a721e1ea4cc8d763bc2c5208b54eb57d53fd15ce075ab47e78c11f3deb99fe3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03b6a27e24c030b73d69f59922fadb2f234d937478abab5932d83b402dcf1514",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-05-20T20:17:21Z",
    "title_canon_sha256": "adedfae5391bc6754b421475f145e5d7bd8b3e1ab69ab77d5d2f2f7bb4c80e08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08329",
    "kind": "arxiv",
    "version": 1
  }
}