Pith Number

pith:2JJ6PIC7

pith:2018:2JJ6PIC7IYKYAHU3GDZYECE4PM

not attested not anchored not stored refs pending

Photoacoustic Tomography with Direction Dependent Data: An Exact Series Reconstruction Approach

Gerhard Zangerl, Markus Haltmeier, Sunghwan Moon

arxiv:1812.09545 v2 · 2018-12-22 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2JJ6PIC7IYKYAHU3GDZYECE4PM}

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	2026-06-04T20:13:49.998756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d253e7a05f4615801e9b30f382089c7b3483bcb195b8b10cac4b59a31fdb2548

Aliases

arxiv: 1812.09545 · arxiv_version: 1812.09545v2 · doi: 10.48550/arxiv.1812.09545 · pith_short_12: 2JJ6PIC7IYKY · pith_short_16: 2JJ6PIC7IYKYAHU3 · pith_short_8: 2JJ6PIC7

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/2JJ6PIC7IYKYAHU3GDZYECE4PM \
  | 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: d253e7a05f4615801e9b30f382089c7b3483bcb195b8b10cac4b59a31fdb2548

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdae5a60853a05b0bb863bd9cac9ea3bd10ab5cb1d2bce28932faa6181e45e21",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-12-22T15:28:13Z",
    "title_canon_sha256": "5b9b2b6386902edf0236200927aaf9cab06a20ce4b13e131dec18e335a4cffda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09545",
    "kind": "arxiv",
    "version": 2
  }
}