Pith Number

pith:WZEKEWWC

pith:2018:WZEKEWWC4VKFVZBQBQVXLTYQN6

not attested not anchored not stored refs pending

Measurement process and inversions using helioseismic normal-mode coupling

Shravan Hanasoge

arxiv:1802.02776 v2 · 2018-02-08 · 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{WZEKEWWC4VKFVZBQBQVXLTYQN6}

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	2026-05-18T00:10:38.514223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b648a25ac2e5545ae4300c2b75cf106f8bef99e933499dcc2e655211836bcd5f

Aliases

arxiv: 1802.02776 · arxiv_version: 1802.02776v2 · doi: 10.48550/arxiv.1802.02776 · pith_short_12: WZEKEWWC4VKF · pith_short_16: WZEKEWWC4VKFVZBQ · pith_short_8: WZEKEWWC

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/WZEKEWWC4VKFVZBQBQVXLTYQN6 \
  | 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: b648a25ac2e5545ae4300c2b75cf106f8bef99e933499dcc2e655211836bcd5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b085defc506ac46774cb4330a3aa92c79d9434449294ad6dc098eee8a43a8bdd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-02-08T09:58:55Z",
    "title_canon_sha256": "20b873de6000d2ecacd0afafebbaa44ad68ba90c9902d4ec37db648f0b65e396"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02776",
    "kind": "arxiv",
    "version": 2
  }
}