Pith Number

pith:XQVIRG2M

pith:2008:XQVIRG2M6KB7T3RZ4OYSFPXHJX

not attested not anchored not stored refs pending

Telescopes versus Microscopes: the puzzle of Iron-60

Jonathan P. Williams

arxiv:0808.2506 v1 · 2008-08-19 · 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{XQVIRG2M6KB7T3RZ4OYSFPXHJX}

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	2026-05-18T00:45:52.852762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc2a889b4cf283f9ee39e3b122bee74dc9a3ce0d57941c615e9688f0cfe21faf

Aliases

arxiv: 0808.2506 · arxiv_version: 0808.2506v1 · doi: 10.48550/arxiv.0808.2506 · pith_short_12: XQVIRG2M6KB7 · pith_short_16: XQVIRG2M6KB7T3RZ · pith_short_8: XQVIRG2M

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/XQVIRG2M6KB7T3RZ4OYSFPXHJX \
  | 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: bc2a889b4cf283f9ee39e3b122bee74dc9a3ce0d57941c615e9688f0cfe21faf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a04ae5433edbc707fe759e72865598fac6d2237e3767e12716dc528817ea11d1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-08-19T00:16:20Z",
    "title_canon_sha256": "738af3e3011f9cb7967f785d6783ac826dad118cb618ff96ca8de50b10c57533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.2506",
    "kind": "arxiv",
    "version": 1
  }
}