Pith Number

pith:E3ODNKSR

pith:2015:E3ODNKSRKJEAXRHZN7U3KTR7W3

not attested not anchored not stored refs pending

Using software spectrometer to ensure VLBI signal chain reliability

Guifr\'e Molera Calv\'es, Juha Kallunki, Minttu Uunila

arxiv:1504.02114 v1 · 2015-04-07 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E3ODNKSRKJEAXRHZN7U3KTR7W3}

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	2026-05-18T02:19:16.032514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26dc36aa5152480bc4f96fe9b54e3fb6d81021a85697712b6b71cbd39499fcbc

Aliases

arxiv: 1504.02114 · arxiv_version: 1504.02114v1 · doi: 10.48550/arxiv.1504.02114 · pith_short_12: E3ODNKSRKJEA · pith_short_16: E3ODNKSRKJEAXRHZ · pith_short_8: E3ODNKSR

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/E3ODNKSRKJEAXRHZN7U3KTR7W3 \
  | 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: 26dc36aa5152480bc4f96fe9b54e3fb6d81021a85697712b6b71cbd39499fcbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fff4a6eb1ad085ff455f79da14741d68eccb52e876309235161cda8e0a24906",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-04-07T07:28:03Z",
    "title_canon_sha256": "021683910dc23ae1cfd0eb828f0118b1909665b9334b04608dfa5b6e9a3cac60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02114",
    "kind": "arxiv",
    "version": 1
  }
}