Pith Number

pith:HSZHIEYI

pith:2015:HSZHIEYI2KJ6U2ERI3ZFK3F7NS

not attested not anchored not stored refs pending

Svestka's Research: Then and Now

Hugh S. Hudson

arxiv:1503.04452 v1 · 2015-03-15 · 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{HSZHIEYI2KJ6U2ERI3ZFK3F7NS}

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	2026-05-18T02:23:25.017570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cb2741308d293ea689146f2556cbf6cbf00c9b1e1d99bd362e65131ef80ea8c

Aliases

arxiv: 1503.04452 · arxiv_version: 1503.04452v1 · doi: 10.48550/arxiv.1503.04452 · pith_short_12: HSZHIEYI2KJ6 · pith_short_16: HSZHIEYI2KJ6U2ER · pith_short_8: HSZHIEYI

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/HSZHIEYI2KJ6U2ERI3ZFK3F7NS \
  | 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: 3cb2741308d293ea689146f2556cbf6cbf00c9b1e1d99bd362e65131ef80ea8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d077ea233fe5b9bf5db92c864033c5169767779696d2d89d4faebdcf4c3a2c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-15T17:11:31Z",
    "title_canon_sha256": "86de27aab3ff669fa6ea06259f3abfad635aed321a7302688be12a222f5e1171"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04452",
    "kind": "arxiv",
    "version": 1
  }
}