Pith Number

pith:QKKY3NRK

pith:2019:QKKY3NRKFOGHB7JJOLCFWHWXEL

not attested not anchored not stored refs pending

ELT Contributions to The First Explosions

Dan Milisavljevic, J. Craig Wheeler, J\'ozsef Vink\'o, Maryam Modjaz, Rafaella Margutti, Sung-Chul Yoon

arxiv:1903.01569 v1 · 2019-03-04 · astro-ph.IM · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QKKY3NRKFOGHB7JJOLCFWHWXEL}

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	2026-05-17T23:52:00.278966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82958db62a2b8c70fd2972c45b1ed722c7577a0faa7f00a12fbad8aab41d2ae4

Aliases

arxiv: 1903.01569 · arxiv_version: 1903.01569v1 · doi: 10.48550/arxiv.1903.01569 · pith_short_12: QKKY3NRKFOGH · pith_short_16: QKKY3NRKFOGHB7JJ · pith_short_8: QKKY3NRK

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/QKKY3NRKFOGHB7JJOLCFWHWXEL \
  | 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: 82958db62a2b8c70fd2972c45b1ed722c7577a0faa7f00a12fbad8aab41d2ae4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f40a138f662b5d648f715a89ca6b804265af77024bbe3f6b69415c97441e246a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-03-04T22:23:19Z",
    "title_canon_sha256": "1259a471692278fd562b6352201f9c1078e7392d3e39060702f9bee6e0ba4cf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01569",
    "kind": "arxiv",
    "version": 1
  }
}