Pith Number

pith:D4TSL3WB

pith:2017:D4TSL3WBCV2KG7CMYBSGPLUGAF

not attested not anchored not stored refs pending

A Comprehensive Method to Measure Solar Meridional Circulation and Center-to-Limb Effect Using Time-Distance Helioseismology

Junwei Zhao, Ruizhu Chen

arxiv:1709.07905 v1 · 2017-09-22 · 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{D4TSL3WBCV2KG7CMYBSGPLUGAF}

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	2026-05-18T00:30:41.132331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f2725eec11574a37c4cc06467ae86014694482fa1d7568de0ebfdb6edecdc82

Aliases

arxiv: 1709.07905 · arxiv_version: 1709.07905v1 · doi: 10.48550/arxiv.1709.07905 · pith_short_12: D4TSL3WBCV2K · pith_short_16: D4TSL3WBCV2KG7CM · pith_short_8: D4TSL3WB

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/D4TSL3WBCV2KG7CMYBSGPLUGAF \
  | 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: 1f2725eec11574a37c4cc06467ae86014694482fa1d7568de0ebfdb6edecdc82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b3225af93cbbb5ef319e3fafddd9e2c2aef03b23006e58be63fd2ce9cb1b74e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-09-22T18:42:28Z",
    "title_canon_sha256": "cad27acf81b6b46fa84e1c56a7b4b76ba44121d1916d235e7ab87b9ff1441a37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07905",
    "kind": "arxiv",
    "version": 1
  }
}