Pith Number

pith:4YSB5E6I

pith:2010:4YSB5E6IBSUPMG4YCZQR6NBSF5

not attested not anchored not stored refs pending

The Observational Signatures of Primordial Pair-Instability Supernovae

Chris Fryer, Daniel J. Whalen

arxiv:1009.2543 v1 · 2010-09-14 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YSB5E6IBSUPMG4YCZQR6NBSF5}

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	2026-05-18T02:05:30.925008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6241e93c80ca8f61b9816611f34322f6f54fb6cc64daac9c67ab59f0dd39b13

Aliases

arxiv: 1009.2543 · arxiv_version: 1009.2543v1 · doi: 10.48550/arxiv.1009.2543 · pith_short_12: 4YSB5E6IBSUP · pith_short_16: 4YSB5E6IBSUPMG4Y · pith_short_8: 4YSB5E6I

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/4YSB5E6IBSUPMG4YCZQR6NBSF5 \
  | 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: e6241e93c80ca8f61b9816611f34322f6f54fb6cc64daac9c67ab59f0dd39b13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b9c25556380aff2e60a3ebc14c9c1ee550326c713b3363050bd57d49b41e5c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-14T00:17:58Z",
    "title_canon_sha256": "205bff2156f904738a553c70bece232370472ebeaedaad8688d9d9bb84707028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2543",
    "kind": "arxiv",
    "version": 1
  }
}