Pith Number

pith:ZMHPMXNX

pith:2011:ZMHPMXNXMYLIF44LJ5JEXJCQJX

not attested not anchored not stored refs pending

Spectroscopic madness--A golden age for amateurs

Thomas Eversberg

arxiv:1101.0680 v1 · 2011-01-04 · 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{ZMHPMXNXMYLIF44LJ5JEXJCQJX}

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	2026-05-18T04:32:02.282440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb0ef65db7661682f38b4f524ba4504deefcdf9ec377d653bc4acaa1405763d0

Aliases

arxiv: 1101.0680 · arxiv_version: 1101.0680v1 · doi: 10.48550/arxiv.1101.0680 · pith_short_12: ZMHPMXNXMYLI · pith_short_16: ZMHPMXNXMYLIF44L · pith_short_8: ZMHPMXNX

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/ZMHPMXNXMYLIF44LJ5JEXJCQJX \
  | 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: cb0ef65db7661682f38b4f524ba4504deefcdf9ec377d653bc4acaa1405763d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be7478ac4d6251e0ad762c424f2e6893864a50b963f945ec61850a24a9dc0be2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-04T09:29:37Z",
    "title_canon_sha256": "d285638370ec817a2c9089203f0c842ea8d61d1aa254257124efa0ae3ae4945e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0680",
    "kind": "arxiv",
    "version": 1
  }
}