Pith Number

pith:LB7TYHEK

pith:2001:LB7TYHEK3HY5NGF6TXMANMWC3K

not attested not anchored not stored refs pending

D/H Measurements

A. Vidal-Madjar

arxiv:astro-ph/0103170 v1 · 2001-03-12 · 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{LB7TYHEK3HY5NGF6TXMANMWC3K}

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	2026-05-18T01:00:27.550117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

587f3c1c8ad9f1d698be9dd806b2c2daa69684c61d4c045297287ead787e8c99

Aliases

arxiv: astro-ph/0103170 · arxiv_version: astro-ph/0103170v1 · doi: 10.48550/arxiv.astro-ph/0103170 · pith_short_12: LB7TYHEK3HY5 · pith_short_16: LB7TYHEK3HY5NGF6 · pith_short_8: LB7TYHEK

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/LB7TYHEK3HY5NGF6TXMANMWC3K \
  | 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: 587f3c1c8ad9f1d698be9dd806b2c2daa69684c61d4c045297287ead787e8c99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9f2352c7a4a75747c1a9c0002bb812546c2678aed80e5460646b1e564b48ede",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-03-12T16:08:45Z",
    "title_canon_sha256": "05985a07b5504f2d9af4935631553d800b19ca0452e7dd887fcbde3122de15a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0103170",
    "kind": "arxiv",
    "version": 1
  }
}