Pith Number

pith:2Q37PEZ7

pith:2015:2Q37PEZ7RZWRS7DIPXFU545VIX

not attested not anchored not stored refs pending

Polychromatic X-ray CT Image Reconstruction and Mass-Attenuation Spectrum Estimation

Aleksandar Dogand\v{z}i\'c, Renliang Gu

arxiv:1509.02193 v1 · 2015-09-07 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Q37PEZ7RZWRS7DIPXFU545VIX}

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	2026-05-18T01:14:52.969258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d437f7933f8e6d197c687dcb4ef3b545e2db78337f92f82376517a0e268bb19b

Aliases

arxiv: 1509.02193 · arxiv_version: 1509.02193v1 · doi: 10.48550/arxiv.1509.02193 · pith_short_12: 2Q37PEZ7RZWR · pith_short_16: 2Q37PEZ7RZWRS7DI · pith_short_8: 2Q37PEZ7

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/2Q37PEZ7RZWRS7DIPXFU545VIX \
  | 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: d437f7933f8e6d197c687dcb4ef3b545e2db78337f92f82376517a0e268bb19b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aebe3c857ba1f991bbb95733565124fdfa819cdb345fbcc714b87b99fe85aea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-09-07T21:10:25Z",
    "title_canon_sha256": "4606757190916fd533dbecf20bb2a8c07402f763dc880690d32ea0e9faef8e75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02193",
    "kind": "arxiv",
    "version": 1
  }
}