Pith Number

pith:LKPN6A7Z

pith:2012:LKPN6A7ZWKVBAQZSXAH36GYGH6

not attested not anchored not stored refs pending

Verification of the Travel Time Measurement Technique and the Helioseismic Inversion Procedure for Sound Speed Using Artificial Data

Alexander G. Kosovichev, Junwei Zhao, Konstantin V. Parchevsky, Thomas Hartlep

arxiv:1209.4877 v1 · 2012-09-21 · 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{LKPN6A7ZWKVBAQZSXAH36GYGH6}

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	2026-05-18T03:45:01.567712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a9edf03f9b2aa104332b80fbf1b063fbb52484cf5c208c65a9b5d399ee020c1

Aliases

arxiv: 1209.4877 · arxiv_version: 1209.4877v1 · doi: 10.48550/arxiv.1209.4877 · pith_short_12: LKPN6A7ZWKVB · pith_short_16: LKPN6A7ZWKVBAQZS · pith_short_8: LKPN6A7Z

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/LKPN6A7ZWKVBAQZSXAH36GYGH6 \
  | 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: 5a9edf03f9b2aa104332b80fbf1b063fbb52484cf5c208c65a9b5d399ee020c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23e830d2fe2b9e0a6881943de699dfb2fdfed7efa144aed00e0b394f0203596b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-21T18:10:27Z",
    "title_canon_sha256": "3cb1f292c4c57646c6a22f74813af50f2c81cfb33a0485e24461e7b53d0b59ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4877",
    "kind": "arxiv",
    "version": 1
  }
}