Pith Number

pith:EGPHPT32

pith:2017:EGPHPT32GJRGUXYW64URQVXILN

not attested not anchored not stored refs pending

The Resilience of Life to Astrophysical Events

Abraham Loeb (Harvard), David Sloan (Oxford), Rafael Alves Batista (Oxford)

arxiv:1707.04253 v1 · 2017-07-13 · astro-ph.EP · astro-ph.GA · astro-ph.HE · 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{EGPHPT32GJRGUXYW64URQVXILN}

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	2026-05-18T00:40:12.598418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

219e77cf7a32626a5f16f7291856e85b6ad33d7e34630a675bdb8973847a81cc

Aliases

arxiv: 1707.04253 · arxiv_version: 1707.04253v1 · doi: 10.48550/arxiv.1707.04253 · pith_short_12: EGPHPT32GJRG · pith_short_16: EGPHPT32GJRGUXYW · pith_short_8: EGPHPT32

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/EGPHPT32GJRGUXYW64URQVXILN \
  | 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: 219e77cf7a32626a5f16f7291856e85b6ad33d7e34630a675bdb8973847a81cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04b19eeb86fb754f5aa08502294aca03f5ecf5a09b3475dfdf999b838d95397c",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-07-13T09:18:09Z",
    "title_canon_sha256": "6323d58b2bec7345d01ceb85c146916b6c74ee7fa59de4c2a54085f8f2979aef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04253",
    "kind": "arxiv",
    "version": 1
  }
}