Pith Number

pith:SUYORIGS

pith:2015:SUYORIGSGJHWCCFW7NI7HQVGBI

not attested not anchored not stored refs pending

Preheating of the Universe by cosmic rays from primordial supernovae at the beginning of cosmic reionization

Rashid Sunyaev, Sergey Sazonov

arxiv:1509.08408 v1 · 2015-09-28 · astro-ph.CO · 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{SUYORIGSGJHWCCFW7NI7HQVGBI}

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.

Cited by

1 paper in Pith

High-Redshift Signatures from the Cosmic Dawn and the Epoch of Reionization

Receipt and verification

First computed	2026-05-18T01:28:45.538541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9530e8a0d2324f6108b6fb51f3c2a60a0b2369ccfc68e731f5385c561887f7a1

Aliases

arxiv: 1509.08408 · arxiv_version: 1509.08408v1 · doi: 10.48550/arxiv.1509.08408 · pith_short_12: SUYORIGSGJHW · pith_short_16: SUYORIGSGJHWCCFW · pith_short_8: SUYORIGS

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/SUYORIGSGJHWCCFW7NI7HQVGBI \
  | 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: 9530e8a0d2324f6108b6fb51f3c2a60a0b2369ccfc68e731f5385c561887f7a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc00cf1a67c5518d99223760adbdd529bb0a3d7bb8bbf27a4e0c0994f2d189d2",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-09-28T17:38:59Z",
    "title_canon_sha256": "d89b1483de233e63d17b216076c07e6383dcbc3c3def0b7830e078bd37402b78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08408",
    "kind": "arxiv",
    "version": 1
  }
}