Pith Number

pith:63M6AEME

pith:2001:63M6AEMEKZ3OE3UNOTQIMGL6H7

not attested not anchored not stored refs pending

An upper mass limit for the progenitor of the TypeII-P supernova SN1999gi

C. A. Tout, C. M. Frayn, G. F. Gilmore, N. Trentham, S. J. Smartt

arxiv:astro-ph/0105453 v1 · 2001-05-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{63M6AEMEKZ3OE3UNOTQIMGL6H7}

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	2026-05-18T01:07:45.820247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6d9e011845676e26e8d74e086197e3fcdebef364924a1386886bdbe2f000c17

Aliases

arxiv: astro-ph/0105453 · arxiv_version: astro-ph/0105453v1 · doi: 10.48550/arxiv.astro-ph/0105453 · pith_short_12: 63M6AEMEKZ3O · pith_short_16: 63M6AEMEKZ3OE3UN · pith_short_8: 63M6AEME

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/63M6AEMEKZ3OE3UNOTQIMGL6H7 \
  | 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: f6d9e011845676e26e8d74e086197e3fcdebef364924a1386886bdbe2f000c17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8532dc76b9e74ccef18ed75a080a598913dd3685dedbeaad83a70563aff397a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-05-25T14:46:24Z",
    "title_canon_sha256": "f06ad5e48666a1f58da79250369d29a9015f299ee8950937d0e1da0cd9179f6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0105453",
    "kind": "arxiv",
    "version": 1
  }
}