Pith Number

pith:QJIGJDY2

pith:2019:QJIGJDY2Z7WV6JSZ6CIKQXBTUI

not attested not anchored not stored refs pending

Demisability and survivability sensitivity to design-for-demise techniques

Camilla Colombo, Hugh G. Lewis, Mirko Trisolini

arxiv:1910.06397 v1 · 2019-10-10 · astro-ph.IM · astro-ph.EP · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QJIGJDY2Z7WV6JSZ6CIKQXBTUI}

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	2026-07-05T00:11:47.674511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8250648f1acfed5f2659f090a85c33a2123735ca67672cb1d5d13610bcd39912

Aliases

arxiv: 1910.06397 · arxiv_version: 1910.06397v1 · doi: 10.48550/arxiv.1910.06397 · pith_short_12: QJIGJDY2Z7WV · pith_short_16: QJIGJDY2Z7WV6JSZ · pith_short_8: QJIGJDY2

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/QJIGJDY2Z7WV6JSZ6CIKQXBTUI \
  | 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: 8250648f1acfed5f2659f090a85c33a2123735ca67672cb1d5d13610bcd39912

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd68c36583c1a3128df04dabebc38d53abfc896ede8c197907129200b1bae747",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-10-10T21:25:43Z",
    "title_canon_sha256": "9fad8505b79f70b4e4be1b79beae656b4d5e601da78a49185709a3279d7dfacf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.06397",
    "kind": "arxiv",
    "version": 1
  }
}