Pith Number

pith:LFP6KXZM

pith:2005:LFP6KXZMIUMFJBWN7CAKR6RXTO

not attested not anchored not stored refs pending

From Hubble diagrams to scale factors

Andre Tilquin, Thomas Schucker

arxiv:astro-ph/0506457 v1 · 2005-06-20 · 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{LFP6KXZMIUMFJBWN7CAKR6RXTO}

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	2026-05-18T01:40:33.913094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

595fe55f2c45185486cdf880a8fa379b8cee78f9e0beb4b9f9b44cef81b4aff6

Aliases

arxiv: astro-ph/0506457 · arxiv_version: astro-ph/0506457v1 · doi: 10.48550/arxiv.astro-ph/0506457 · pith_short_12: LFP6KXZMIUMF · pith_short_16: LFP6KXZMIUMFJBWN · pith_short_8: LFP6KXZM

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/LFP6KXZMIUMFJBWN7CAKR6RXTO \
  | 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: 595fe55f2c45185486cdf880a8fa379b8cee78f9e0beb4b9f9b44cef81b4aff6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fb4bebcee5e57438f771330aa707b13ed3fe324781c9a956234be3d595f0018",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-20T17:16:35Z",
    "title_canon_sha256": "71a3579bf7006490f12a3e49e0d4d6bda8e14b2a039d582264f07206f8443205"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506457",
    "kind": "arxiv",
    "version": 1
  }
}