Pith Number

pith:X7GVDARG

pith:2010:X7GVDARGUHKQ57YCKTJ2XZYDSJ

not attested not anchored not stored refs pending

Introduction to Astronomy with Radioactivity

Roland Diehl

arxiv:1007.2206 v1 · 2010-07-13 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X7GVDARGUHKQ57YCKTJ2XZYDSJ}

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	2026-05-18T00:00:41.731731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfcd518226a1d50eff0254d3abe70392640d5543fa193a09ffa7db9355fa61b0

Aliases

arxiv: 1007.2206 · arxiv_version: 1007.2206v1 · doi: 10.48550/arxiv.1007.2206 · pith_short_12: X7GVDARGUHKQ · pith_short_16: X7GVDARGUHKQ57YC · pith_short_8: X7GVDARG

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/X7GVDARGUHKQ57YCKTJ2XZYDSJ \
  | 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: bfcd518226a1d50eff0254d3abe70392640d5543fa193a09ffa7db9355fa61b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23d3419f58b99ad8bde81536607a29704f1d58fba3083b1da6473f326a0416b8",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-07-13T21:24:30Z",
    "title_canon_sha256": "552914b6bab34098117a366ed0313152245fa21b057e58005e50f439ce4be7b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2206",
    "kind": "arxiv",
    "version": 1
  }
}