Pith Number

pith:YATYBYPR

pith:2009:YATYBYPREWMPYH7LFJQIC6TTFS

not attested not anchored not stored refs pending

The Extragalactic Distance Database: All Digital HI Profile Catalog

A Barnes, Helene M Courtois, J R Fisher, M Zavodny, N Bonhomme, R B Tully

arxiv:0902.3670 v2 · 2009-02-20 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YATYBYPREWMPYH7LFJQIC6TTFS}

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	2026-05-18T02:14:46.657219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c02780e1f12598fc1feb2a60817a732ca7a89848eb2cd74bd9643c2428275cba

Aliases

arxiv: 0902.3670 · arxiv_version: 0902.3670v2 · doi: 10.48550/arxiv.0902.3670 · pith_short_12: YATYBYPREWMP · pith_short_16: YATYBYPREWMPYH7L · pith_short_8: YATYBYPR

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/YATYBYPREWMPYH7LFJQIC6TTFS \
  | 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: c02780e1f12598fc1feb2a60817a732ca7a89848eb2cd74bd9643c2428275cba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fe1d37a7a22c598d640407af50cb98be16239ae598d8ffd760d7f34987b7fba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-02-20T21:25:46Z",
    "title_canon_sha256": "2e166d4b30d1b668a3bb30c5f2a53374909bfc2fe0a8ae676b15bc805bbcc50e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3670",
    "kind": "arxiv",
    "version": 2
  }
}