Pith Number

pith:FN5RUCX3

pith:2017:FN5RUCX3ZPIQXS64L4AHDNK3KB

not attested not anchored not stored refs pending

No hot and luminous progenitor for Tycho's supernova

C. Badenes, M. Gilfanov, P. Ghavamian, T. E. Woods

arxiv:1709.09190 v1 · 2017-09-26 · astro-ph.SR · 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{FN5RUCX3ZPIQXS64L4AHDNK3KB}

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	2026-05-18T00:34:12.544167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b7b1a0afbcbd10bcbdc5f0071b55b50742af1febb382f91fd7d2f63f4d2107d

Aliases

arxiv: 1709.09190 · arxiv_version: 1709.09190v1 · doi: 10.48550/arxiv.1709.09190 · pith_short_12: FN5RUCX3ZPIQ · pith_short_16: FN5RUCX3ZPIQXS64 · pith_short_8: FN5RUCX3

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/FN5RUCX3ZPIQXS64L4AHDNK3KB \
  | 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: 2b7b1a0afbcbd10bcbdc5f0071b55b50742af1febb382f91fd7d2f63f4d2107d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89df0d9ed9ea93ae5d9b31f4295caa1dbdcc2a2d68bcb90f677174340212fe99",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-09-26T18:01:10Z",
    "title_canon_sha256": "43bab63a3d040070435081eb4531596e3396233bc026416a3d90bc157c81e2e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09190",
    "kind": "arxiv",
    "version": 1
  }
}