Pith Number

pith:ZISZD5XC

pith:2018:ZISZD5XCFT45ZLBVZA425WEBYV

not attested not anchored not stored refs pending

Discovery of the Luminous, Decades-Long, Extragalactic Radio Transient FIRST J141918.9+394036

2), (2) Dunlap Institute, 3), (3) Toronto, (4) Columbia, (5) Weizmann Institute), B.D. Metzger (4), B.M. Gaensler (2, C.J. Law (1, E.O. Ofek (5), L. Sironi (4) ((1) UC Berkeley

arxiv:1808.08964 v1 · 2018-08-27 · 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{ZISZD5XCFT45ZLBVZA425WEBYV}

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	2026-05-18T00:02:31.012311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca2591f6e22cf9dcac35c839aed881c551ef247d168206af709b81535d7fafb3

Aliases

arxiv: 1808.08964 · arxiv_version: 1808.08964v1 · doi: 10.48550/arxiv.1808.08964 · pith_short_12: ZISZD5XCFT45 · pith_short_16: ZISZD5XCFT45ZLBV · pith_short_8: ZISZD5XC

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/ZISZD5XCFT45ZLBVZA425WEBYV \
  | 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: ca2591f6e22cf9dcac35c839aed881c551ef247d168206af709b81535d7fafb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a586e36118779fe7c6472d3b97633070fc063283bd0b9732278517495237ce6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-08-27T18:00:03Z",
    "title_canon_sha256": "d5d69fa69f7df46c5089215dbfa16d59d23090271781d2819084b90c57637954"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08964",
    "kind": "arxiv",
    "version": 1
  }
}