Pith Number

pith:7XS3G7WS

pith:2012:7XS3G7WSBDWAAWHOB4O34FTXT2

not attested not anchored not stored refs pending

Reconstructions for some coupled-physics inverse problems

Guillaume Bal, Gunther Uhlmann

arxiv:1203.1210 v1 · 2012-03-06 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7XS3G7WSBDWAAWHOB4O34FTXT2}

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	2026-05-18T04:00:40.117465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fde5b37ed208ec0058ee0f1dbe16779e80231191ffc04a7a2a00c660159c2ccd

Aliases

arxiv: 1203.1210 · arxiv_version: 1203.1210v1 · doi: 10.48550/arxiv.1203.1210 · pith_short_12: 7XS3G7WSBDWA · pith_short_16: 7XS3G7WSBDWAAWHO · pith_short_8: 7XS3G7WS

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/7XS3G7WSBDWAAWHOB4O34FTXT2 \
  | 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: fde5b37ed208ec0058ee0f1dbe16779e80231191ffc04a7a2a00c660159c2ccd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d87682f50a0b0cc06fa2fbd5ebee50bd0cf18fab93192d14088fb3509e4818f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-03-06T14:39:17Z",
    "title_canon_sha256": "5ba7244462cd22a2f59c813beca15cf1105b5ac23b128308cf3daf1f587997ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1210",
    "kind": "arxiv",
    "version": 1
  }
}