Pith Number

pith:FIJWHOIF

pith:2018:FIJWHOIFIVX2VVSB27FYN7PSYE

not attested not anchored not stored refs pending

Detecting the signatures of helium in type Iax supernovae

(2) Tuorla Observatory, (3) MPA Garching), A. Boyle (3) ((1) Queen's University Belfast, K. Maguire (1), M. R. Magee (1), R. Kotak (2), S. A. Sim (1)

arxiv:1812.08695 v1 · 2018-12-20 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FIJWHOIFIVX2VVSB27FYN7PSYE}

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	2026-05-17T23:54:42.567422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a1363b905456faad641d7cb86fdf2c12b6ff2719e9f3ed1c749047e39549ca5

Aliases

arxiv: 1812.08695 · arxiv_version: 1812.08695v1 · doi: 10.48550/arxiv.1812.08695 · pith_short_12: FIJWHOIFIVX2 · pith_short_16: FIJWHOIFIVX2VVSB · pith_short_8: FIJWHOIF

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/FIJWHOIFIVX2VVSB27FYN7PSYE \
  | 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: 2a1363b905456faad641d7cb86fdf2c12b6ff2719e9f3ed1c749047e39549ca5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16cdb3d455fd0f6037642c05de9ca04d61767000a7c91b704d9c5a7c2413fb08",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-12-20T16:53:42Z",
    "title_canon_sha256": "b5737db66cdbe1d79d465e9b2d761d66c4b997895ba526355afa1dcb783b10ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.08695",
    "kind": "arxiv",
    "version": 1
  }
}