Pith Number

pith:DRMHQRRD

pith:2017:DRMHQRRDPVWDVIHHLSQ6SELF63

not attested not anchored not stored refs pending

Dynamic Discrete Tomography

Andreas Alpers, Peter Gritzmann

arxiv:1712.04217 v2 · 2017-12-12 · cs.DS · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DRMHQRRDPVWDVIHHLSQ6SELF63}

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	2026-05-18T00:01:23.523047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c587846237d6c3aa0e75ca1e91165f6f3c8a74e8f2ceb19eb8d989273cc6546

Aliases

arxiv: 1712.04217 · arxiv_version: 1712.04217v2 · doi: 10.48550/arxiv.1712.04217 · pith_short_12: DRMHQRRDPVWD · pith_short_16: DRMHQRRDPVWDVIHH · pith_short_8: DRMHQRRD

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/DRMHQRRDPVWDVIHHLSQ6SELF63 \
  | 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: 1c587846237d6c3aa0e75ca1e91165f6f3c8a74e8f2ceb19eb8d989273cc6546

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1da2f328ec86248b06615ffe19793ba3a5a97220d6105ac8738217401bc2d17f",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-12-12T10:37:35Z",
    "title_canon_sha256": "d401820400edae1bf4f1ce6a57b0332862bb1b465b346885584f32c6d3b9d999"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.04217",
    "kind": "arxiv",
    "version": 2
  }
}