Pith Number

pith:7HHIDLE4

pith:2015:7HHIDLE4MLMGVZUIUTJNMQZG5I

not attested not anchored not stored refs pending

Ultra-high-energy-cosmic-ray hot spots from tidal disruption events

Daniel N. Pfeffer, Ely D. Kovetz, Marc Kamionkowski

arxiv:1512.04959 v2 · 2015-12-15 · astro-ph.HE · astro-ph.CO · astro-ph.GA

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

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	2026-05-18T00:52:41.978257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9ce81ac9c62d86ae688a4d2d64326ea2e938b976171dc231934ec5de9868015

Aliases

arxiv: 1512.04959 · arxiv_version: 1512.04959v2 · doi: 10.48550/arxiv.1512.04959 · pith_short_12: 7HHIDLE4MLMG · pith_short_16: 7HHIDLE4MLMGVZUI · pith_short_8: 7HHIDLE4

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/7HHIDLE4MLMGVZUIUTJNMQZG5I \
  | 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: f9ce81ac9c62d86ae688a4d2d64326ea2e938b976171dc231934ec5de9868015

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a920a174fc6e45fe1b1377ca1e330fb94a8db4f586f21ffde2b3da6ad446a41",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-12-15T21:03:40Z",
    "title_canon_sha256": "5e593191d19bf8801f25274c30d30b2a38fecfd9ad245614ec9efe056a69e85b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.04959",
    "kind": "arxiv",
    "version": 2
  }
}