Pith Number

pith:VQYKBHND

pith:2015:VQYKBHNDK6MQN7CU2AZGUE4DYP

not attested not anchored not stored refs pending

Use of spheroidal models in gravitational tomography

Valery Sizikov

arxiv:1508.04410 v1 · 2015-08-18 · math.NA · physics.geo-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VQYKBHNDK6MQN7CU2AZGUE4DYP}

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	2026-05-18T01:35:05.440255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac30a09da3579906fc54d0326a1383c3f9b1ec478ea68e2f561a308beab99731

Aliases

arxiv: 1508.04410 · arxiv_version: 1508.04410v1 · doi: 10.48550/arxiv.1508.04410 · pith_short_12: VQYKBHNDK6MQ · pith_short_16: VQYKBHNDK6MQN7CU · pith_short_8: VQYKBHND

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/VQYKBHNDK6MQN7CU2AZGUE4DYP \
  | 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: ac30a09da3579906fc54d0326a1383c3f9b1ec478ea68e2f561a308beab99731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75a26ce9e0401d1f20f49ab4380fb8938dabbfcab4092b2ec8efa8cff223c7b3",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-08-18T19:01:39Z",
    "title_canon_sha256": "9798394187c336679019c831aa64b520781afb02829227a6f22b9aaf09d4a3bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04410",
    "kind": "arxiv",
    "version": 1
  }
}