Pith Number

pith:4IC6PDPA

pith:1998:4IC6PDPAPOUQS6JN4LWHZJFFR6

not attested not anchored not stored refs pending

Cosmic evolution during primordial black hole evaporation

Diego Pav\'on, Winfried Zimdahl

arxiv:astro-ph/9809045 v1 · 1998-09-04 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4IC6PDPAPOUQS6JN4LWHZJFFR6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:09:21.410875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e205e78de07ba909792de2ec7ca4a58fba3bf5325ee0eb403524080ac0455b1e

Aliases

arxiv: astro-ph/9809045 · arxiv_version: astro-ph/9809045v1 · doi: 10.48550/arxiv.astro-ph/9809045 · pith_short_12: 4IC6PDPAPOUQ · pith_short_16: 4IC6PDPAPOUQS6JN · pith_short_8: 4IC6PDPA

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/4IC6PDPAPOUQS6JN4LWHZJFFR6 \
  | 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: e205e78de07ba909792de2ec7ca4a58fba3bf5325ee0eb403524080ac0455b1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e082c50152788e6c4a2a9588ecc7f418ced2ae085339f05f520b2ed4979b914a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-09-04T06:42:00Z",
    "title_canon_sha256": "b33fb57c2913f371a4afd20a896d87e68a7fd1b730248b867b076fed7c783d2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9809045",
    "kind": "arxiv",
    "version": 1
  }
}