Pith Number

pith:O5J3THKF

pith:2016:O5J3THKFF7XTIQU4ZXUCCAUXLT

not attested not anchored not stored refs pending

On the Adjoint Operator in Photoacoustic Tomography

Ben T. Cox, Brad E. Treeby, Felix Lucka, Marta M. Betcke, Simon R. Arridge

arxiv:1602.02027 v2 · 2016-02-05 · math.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{O5J3THKFF7XTIQU4ZXUCCAUXLT}

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	2026-05-18T01:00:39.770413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7753b99d452fef34429ccde82102975cf7d79f50f9dcce107fb87fcb8199254d

Aliases

arxiv: 1602.02027 · arxiv_version: 1602.02027v2 · doi: 10.48550/arxiv.1602.02027 · pith_short_12: O5J3THKFF7XT · pith_short_16: O5J3THKFF7XTIQU4 · pith_short_8: O5J3THKF

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/O5J3THKFF7XTIQU4ZXUCCAUXLT \
  | 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: 7753b99d452fef34429ccde82102975cf7d79f50f9dcce107fb87fcb8199254d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f5a1937dfe69cf149533d03b15c152de342b767d88959f3a50b53b3c99d854f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-02-05T14:14:23Z",
    "title_canon_sha256": "ffe1fe4a45d64853c83371d5b0b501f434ba6b726bad2e8c167d8181303d9864"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02027",
    "kind": "arxiv",
    "version": 2
  }
}