Pith Number

pith:37JSNTVK

pith:2026:37JSNTVKXYNOF57IWFJWTE2EZ6

not attested not anchored not stored refs pending

Diffusion-guided optimization for full waveform inversion

Bj\"orn Engquist, Yangkang Chen, Yiran Shen

arxiv:2607.21987 v1 · 2026-07-24 · 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{37JSNTVKXYNOF57IWFJWTE2EZ6}

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	2026-07-27T00:20:31.348865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfd326ceaabe1ae2f7e8b153699344cf9ea4727d33626756701fd5b61e9c4b15

Aliases

arxiv: 2607.21987 · arxiv_version: 2607.21987v1 · doi: 10.48550/arxiv.2607.21987 · pith_short_12: 37JSNTVKXYNO · pith_short_16: 37JSNTVKXYNOF57I · pith_short_8: 37JSNTVK

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/37JSNTVKXYNOF57IWFJWTE2EZ6 \
  | 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: dfd326ceaabe1ae2f7e8b153699344cf9ea4727d33626756701fd5b61e9c4b15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24c862892f81e7cb6586c96c60fcfbd9a71f7ff0f8ebdffbd6326cf044659c04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2026-07-24T05:22:10Z",
    "title_canon_sha256": "2c6cb12be6b85f278f09cc6fe5e7ea08a59c9026289fa3bdef7f02f68168e6cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21987",
    "kind": "arxiv",
    "version": 1
  }
}