Pith Number

pith:TTIJQX4H

pith:2020:TTIJQX4HXLU3QB6LSN6TG3GT7K

not attested not anchored not stored refs pending

The convexity of optimal transport-based waveform inversion for certain structured velocity models

Srinath Mahankali

arxiv:2009.00708 v2 · 2020-08-26 · 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{TTIJQX4HXLU3QB6LSN6TG3GT7K}

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	2026-07-05T03:13:22.841987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cd0985f87bae9b807cb937d336cd3fa94688acc12e84c49999ee80d96c3c3e0

Aliases

arxiv: 2009.00708 · arxiv_version: 2009.00708v2 · doi: 10.48550/arxiv.2009.00708 · pith_short_12: TTIJQX4HXLU3 · pith_short_16: TTIJQX4HXLU3QB6L · pith_short_8: TTIJQX4H

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/TTIJQX4HXLU3QB6LSN6TG3GT7K \
  | 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: 9cd0985f87bae9b807cb937d336cd3fa94688acc12e84c49999ee80d96c3c3e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7059a6108f6d2140a583705dd868463403bf739c448899f0940d7272eaf140f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2020-08-26T04:29:41Z",
    "title_canon_sha256": "7de5be6cd0f1d5fc5396e0df092291f2c99fbf8c984d50cc48dd0071571209c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.00708",
    "kind": "arxiv",
    "version": 2
  }
}