Pith Number

pith:V2OYWCRC

pith:2015:V2OYWCRC4S5BWCWK6KPIPIB5VH

not attested not anchored not stored refs pending

Supernova 1987A: a Template to Link Supernovae to their Remnants

F. Bocchino, M.L. Pumo, M. Miceli, S. Orlando

arxiv:1508.02275 v1 · 2015-08-10 · astro-ph.HE

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	2026-05-18T01:32:27.172868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae9d8b0a22e4ba1b0acaf29e87a03da9ebfaf774002195a5ae79bfdba1440584

Aliases

arxiv: 1508.02275 · arxiv_version: 1508.02275v1 · doi: 10.48550/arxiv.1508.02275 · pith_short_12: V2OYWCRC4S5B · pith_short_16: V2OYWCRC4S5BWCWK · pith_short_8: V2OYWCRC

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/V2OYWCRC4S5BWCWK6KPIPIB5VH \
  | 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: ae9d8b0a22e4ba1b0acaf29e87a03da9ebfaf774002195a5ae79bfdba1440584

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "687b07680319417ad44d6cac68ab1d10c42f37ebfe14f9c1aa60603937d26eab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-08-10T15:15:37Z",
    "title_canon_sha256": "34fee60b4deb2b995af237acd843c03f4b1204c21f9546d19506d762b9dae0a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02275",
    "kind": "arxiv",
    "version": 1
  }
}