Pith Number

pith:5DR6BTCQ

pith:2013:5DR6BTCQEJWAWP3SYBIQSHA76N

not attested not anchored not stored refs pending

Photoacoustic and thermoacoustic tomography with an uncertain wave speed

Gunther Uhlmann, Lauri Oksanen

arxiv:1307.1618 v1 · 2013-07-05 · 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{5DR6BTCQEJWAWP3SYBIQSHA76N}

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	2026-05-18T03:19:12.384426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8e3e0cc50226c0b3f72c051091c1ff34baf76ee4929f355340a38b5778cfc6e

Aliases

arxiv: 1307.1618 · arxiv_version: 1307.1618v1 · doi: 10.48550/arxiv.1307.1618 · pith_short_12: 5DR6BTCQEJWA · pith_short_16: 5DR6BTCQEJWAWP3S · pith_short_8: 5DR6BTCQ

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/5DR6BTCQEJWAWP3SYBIQSHA76N \
  | 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: e8e3e0cc50226c0b3f72c051091c1ff34baf76ee4929f355340a38b5778cfc6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d16c9e76a5e171eaf049335032c7e92f9af5b76d4b2f04270a2dae28429deca4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-07-05T13:59:29Z",
    "title_canon_sha256": "6f1f07d1f3b143e51a0ab862011a0bf17814d327c3075142a03d153c72d43644"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1618",
    "kind": "arxiv",
    "version": 1
  }
}