Pith Number

pith:MNKQFO43

pith:2018:MNKQFO436MFMZ4JJCVHDUAIHO3

not attested not anchored not stored refs pending

Validating Forward Modeling and Inversions of Helioseismic Holography Measurements

(1), (2) Max-Planck-Institut f\"ur Sonnensystemforschung, A. C. Birch (2), A. D. Crouch, B. Javornik (1) ((1) NorthWest Research Associates, Boulder, D. C. Braun (1), Germany), G\"ottingen, K. DeGrave (1), USA

arxiv:1807.03841 v1 · 2018-07-10 · 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{MNKQFO436MFMZ4JJCVHDUAIHO3}

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	2026-05-18T00:08:05.998463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

635502bb9bf30accf129154e3a010776e5609bcbfeb8fa28f58b9546a635cd5d

Aliases

arxiv: 1807.03841 · arxiv_version: 1807.03841v1 · doi: 10.48550/arxiv.1807.03841 · pith_short_12: MNKQFO436MFM · pith_short_16: MNKQFO436MFMZ4JJ · pith_short_8: MNKQFO43

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/MNKQFO436MFMZ4JJCVHDUAIHO3 \
  | 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: 635502bb9bf30accf129154e3a010776e5609bcbfeb8fa28f58b9546a635cd5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63628a8b0fbfa0aa4e1eb8067a03c975981c22eb2f6048c71894d68a0698b739",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-10T19:44:35Z",
    "title_canon_sha256": "13de94cf35a8595b6b3bd32367c6b28e726676eb7c9333995edeb3c6afd9896c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03841",
    "kind": "arxiv",
    "version": 1
  }
}