Pith Number

pith:DDZEH4FG

pith:2019:DDZEH4FGOJJREJXOKPUQGEIPIE

not attested not anchored not stored refs pending

The Maribo CM2 meteorite fall - survival of weak material at high entry speed

Jiri Borovicka, Olga Popova, Pavel Spurny

arxiv:1902.01112 v1 · 2019-02-04 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDZEH4FGOJJREJXOKPUQGEIPIE}

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	2026-05-17T23:54:49.662102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18f243f0a672531226ee53e903110f411686b4306ef057af7b287258e67f92c4

Aliases

arxiv: 1902.01112 · arxiv_version: 1902.01112v1 · doi: 10.48550/arxiv.1902.01112 · pith_short_12: DDZEH4FGOJJR · pith_short_16: DDZEH4FGOJJREJXO · pith_short_8: DDZEH4FG

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/DDZEH4FGOJJREJXOKPUQGEIPIE \
  | 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: 18f243f0a672531226ee53e903110f411686b4306ef057af7b287258e67f92c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2309030a571418774a7b1e48d8d9c5463f4d5ed6a54f06605c9126eaa2e80557",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-02-04T10:26:35Z",
    "title_canon_sha256": "ed133a828258132b50e76cfa8b92420a134a96424533d2341e31ca53287ac633"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01112",
    "kind": "arxiv",
    "version": 1
  }
}