Pith Number

pith:JIHTDE3S

pith:2015:JIHTDE3SMAVGYUEUXECOB7PKY6

not attested not anchored not stored refs pending

Photoacoustic Tomography With Spatially Varying Compressibility and Density

Otmar Scherzer, Thomas Glatz, Zakaria Belhachmi

arxiv:1512.07411 v2 · 2015-12-23 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JIHTDE3SMAVGYUEUXECOB7PKY6}

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	2026-05-18T01:23:28.551855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a0f319372602a6c5094b904e0fdeac7b6f4ca3a493042231bab72b12e83aa7d

Aliases

arxiv: 1512.07411 · arxiv_version: 1512.07411v2 · doi: 10.48550/arxiv.1512.07411 · pith_short_12: JIHTDE3SMAVG · pith_short_16: JIHTDE3SMAVGYUEU · pith_short_8: JIHTDE3S

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/JIHTDE3SMAVGYUEUXECOB7PKY6 \
  | 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: 4a0f319372602a6c5094b904e0fdeac7b6f4ca3a493042231bab72b12e83aa7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a02942e701a2b7329935f978f3834e327272bdfd613a88ccbebb54319044f8cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-12-23T10:06:59Z",
    "title_canon_sha256": "671ad7c7243ade213bbbc87966b0388a901cdae87384110845c3079a19b4fc52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.07411",
    "kind": "arxiv",
    "version": 2
  }
}