Pith Number

pith:7FLWXD64

pith:2017:7FLWXD64NRXR6WHTQLNDAIXSPV

not attested not anchored not stored refs pending

The Radio Remnant of Supernova 1987A - A Broader View

A. K. Tzioumis, B. M. Gaensler, C. -Y. Ng, G. Zanardo, L. Staveley-Smith, M. Matsuura, R. Indebetouw

arxiv:1707.09503 v2 · 2017-07-29 · 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{7FLWXD64NRXR6WHTQLNDAIXSPV}

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	2026-05-18T00:32:08.183047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9576b8fdc6c6f1f58f382da3022f27d77d9d8a349841a5aea874713bc0d7c48

Aliases

arxiv: 1707.09503 · arxiv_version: 1707.09503v2 · doi: 10.48550/arxiv.1707.09503 · pith_short_12: 7FLWXD64NRXR · pith_short_16: 7FLWXD64NRXR6WHT · pith_short_8: 7FLWXD64

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/7FLWXD64NRXR6WHTQLNDAIXSPV \
  | 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: f9576b8fdc6c6f1f58f382da3022f27d77d9d8a349841a5aea874713bc0d7c48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55d4b155937f911d59eab095212bd403d8449cbe323e22b4f785da99f3a1b1ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-07-29T12:20:26Z",
    "title_canon_sha256": "f0286a54fd6b03f10fe5a91a202aab8cd43813e81785d79139cc0803fccf4506"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09503",
    "kind": "arxiv",
    "version": 2
  }
}