Pith Number

pith:OGQA4CP2

pith:2012:OGQA4CP2GJISQQRCRC5X6FYR6G

not attested not anchored not stored refs pending

A mathematical framework for inverse wave problems in heterogeneous media

Christiaan C. Stolk, Kirk D. Blazek, William W. Symes

arxiv:1211.4656 v1 · 2012-11-20 · math-ph · math.AP · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OGQA4CP2GJISQQRCRC5X6FYR6G}

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	2026-05-18T01:53:02.654779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71a00e09fa325128422288bb7f1711f1a7f6129541f92981367f3e253c8c0710

Aliases

arxiv: 1211.4656 · arxiv_version: 1211.4656v1 · doi: 10.48550/arxiv.1211.4656 · pith_short_12: OGQA4CP2GJIS · pith_short_16: OGQA4CP2GJISQQRC · pith_short_8: OGQA4CP2

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/OGQA4CP2GJISQQRCRC5X6FYR6G \
  | 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: 71a00e09fa325128422288bb7f1711f1a7f6129541f92981367f3e253c8c0710

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c84efec25017d0e866d17f030952b1394c120ec64458c63fcdf7607c57e80a0",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-11-20T03:19:07Z",
    "title_canon_sha256": "22e5215771cb3cd9a98e380494f0f8d5899c27ea308d198f0fafdc552080efd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4656",
    "kind": "arxiv",
    "version": 1
  }
}