Pith Number

pith:BBE4KIIL

pith:2018:BBE4KIILU5FOHRF3PF7KZYGDHN

not attested not anchored not stored refs pending

The First Hours of the GW170817 Kilonova and the Importance of Early Optical and Ultraviolet Observations for Constraining Emission Models

Iair Arcavi

arxiv:1802.02164 v2 · 2018-02-06 · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BBE4KIILU5FOHRF3PF7KZYGDHN}

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	2026-05-18T00:20:02.240696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0849c5210ba74ae3c4bb797eace0c33b77063aae4bd061bcc62847a552eba1cd

Aliases

arxiv: 1802.02164 · arxiv_version: 1802.02164v2 · doi: 10.48550/arxiv.1802.02164 · pith_short_12: BBE4KIILU5FO · pith_short_16: BBE4KIILU5FOHRF3 · pith_short_8: BBE4KIIL

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/BBE4KIILU5FOHRF3PF7KZYGDHN \
  | 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: 0849c5210ba74ae3c4bb797eace0c33b77063aae4bd061bcc62847a552eba1cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "766240f4fb1133760dac8c50e3d49d7d415560bdd1662edd9b24a9db0a1363bd",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-02-06T19:00:14Z",
    "title_canon_sha256": "9d7647d256c9813f25225ff6e6f78ba0609963691b0be1ae13c106cfbc0e181d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02164",
    "kind": "arxiv",
    "version": 2
  }
}