Pith Number

pith:53SJEUU7

pith:2016:53SJEUU7ARWH3PXAKQFPNK4MG6

not attested not anchored not stored refs pending

A Galerkin least squares approach for photoacoustic tomography

Johannes Schwab, Markus Haltmeier, Sergiy Pereverzyev Jr.

arxiv:1612.08094 v2 · 2016-12-23 · 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{53SJEUU7ARWH3PXAKQFPNK4MG6}

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	2026-05-18T00:32:25.962800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eee492529f046c7dbee0540af6ab8c379c354d0dc4b5d256765138b4adc01851

Aliases

arxiv: 1612.08094 · arxiv_version: 1612.08094v2 · doi: 10.48550/arxiv.1612.08094 · pith_short_12: 53SJEUU7ARWH · pith_short_16: 53SJEUU7ARWH3PXA · pith_short_8: 53SJEUU7

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/53SJEUU7ARWH3PXAKQFPNK4MG6 \
  | 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: eee492529f046c7dbee0540af6ab8c379c354d0dc4b5d256765138b4adc01851

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b43d3049c46725a06e73b1e3723ce1f2b394fa487aa9f2e36027aac4946b4606",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-12-23T21:02:42Z",
    "title_canon_sha256": "8c7d6f5aa643ad27838a3348ee5ba23372e69be0771c5f4f401a45878c52e009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.08094",
    "kind": "arxiv",
    "version": 2
  }
}