Pith Number

pith:ON2KDZTQ

pith:2017:ON2KDZTQVCS6TBIFFFP2JPWQTE

not attested not anchored not stored refs pending

Image reconstruction from radially incomplete spherical Radon data

Gaik Ambartsoumian, Rim Gouia-Zarrad, Souvik Roy, Venkateswaran P. Krishnan

arxiv:1702.04784 v3 · 2017-02-14 · math.CA · math.AP · math.NA · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ON2KDZTQVCS6TBIFFFP2JPWQTE}

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	2026-05-18T00:34:35.111431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7374a1e670a8a5e98505295fa4bed0991aea4fa682f2976c73d449554e5d34f0

Aliases

arxiv: 1702.04784 · arxiv_version: 1702.04784v3 · doi: 10.48550/arxiv.1702.04784 · pith_short_12: ON2KDZTQVCS6 · pith_short_16: ON2KDZTQVCS6TBIF · pith_short_8: ON2KDZTQ

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/ON2KDZTQVCS6TBIFFFP2JPWQTE \
  | 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: 7374a1e670a8a5e98505295fa4bed0991aea4fa682f2976c73d449554e5d34f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ed738b77432807d944b983452d4d17db67e439eade68f5f2bd9b974b41310b8",
    "cross_cats_sorted": [
      "math.AP",
      "math.NA",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-02-14T06:16:22Z",
    "title_canon_sha256": "469f663e57f27f6e3ee7579b820d1e6594029e9555e65b491416f04afd9635ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04784",
    "kind": "arxiv",
    "version": 3
  }
}