Pith Number

pith:6YXUD6V2

pith:2019:6YXUD6V2VJRAH6VALS3WXNEZB5

not attested not anchored not stored refs pending

Deep-learning inversion: a next generation seismic velocity-model building method

Fangshu Yang, Jianwei Ma

arxiv:1902.06267 v1 · 2019-02-17 · physics.geo-ph · cs.LG · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6YXUD6V2VJRAH6VALS3WXNEZB5}

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	2026-05-17T23:53:46.032560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f62f41fabaaa6203faa05cb76bb4990f496ed09d08c1809c05d088f6dd31b2f0

Aliases

arxiv: 1902.06267 · arxiv_version: 1902.06267v1 · doi: 10.48550/arxiv.1902.06267 · pith_short_12: 6YXUD6V2VJRA · pith_short_16: 6YXUD6V2VJRAH6VA · pith_short_8: 6YXUD6V2

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/6YXUD6V2VJRAH6VALS3WXNEZB5 \
  | 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: f62f41fabaaa6203faa05cb76bb4990f496ed09d08c1809c05d088f6dd31b2f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97f735b05e2858479696dd5c9ad3e43c3be60c7b174a6c7f999f8d942516ed73",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2019-02-17T14:52:02Z",
    "title_canon_sha256": "ba68801545880d146c4d16029358d36bd18b76a4df1dc0808957c3669931843f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06267",
    "kind": "arxiv",
    "version": 1
  }
}