Pith Number

pith:XGQ5P445

pith:2018:XGQ5P4457GIFHQBTOGGAJ5POVF

not attested not anchored not stored refs pending

Theoretically exact photoacoustic reconstruction from spatially and temporally reduced data

Leonid Kunyansky, Ngoc Do

arxiv:1806.08412 v1 · 2018-06-21 · 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{XGQ5P4457GIFHQBTOGGAJ5POVF}

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	2026-05-18T00:09:11.118408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9a1d7f39df99053c033718c04f5eea95cd54a3f5cac2fbd7807ff781e75dd0a

Aliases

arxiv: 1806.08412 · arxiv_version: 1806.08412v1 · doi: 10.48550/arxiv.1806.08412 · pith_short_12: XGQ5P4457GIF · pith_short_16: XGQ5P4457GIFHQBT · pith_short_8: XGQ5P445

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/XGQ5P4457GIFHQBTOGGAJ5POVF \
  | 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: b9a1d7f39df99053c033718c04f5eea95cd54a3f5cac2fbd7807ff781e75dd0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4c7b29445e41df06e8f7c5111cc5054bcaa1fc7c10a8b4ed8508b5ca142acd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-06-21T19:55:54Z",
    "title_canon_sha256": "d5bc8c9962e04bf46b7568135ffdae827f0c00227741748cc701063c560faa08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08412",
    "kind": "arxiv",
    "version": 1
  }
}