Pith Number

pith:VVUVFJK2

pith:2018:VVUVFJK26DOQKD3XCYDDASOA7Y

not attested not anchored not stored refs pending

Radio background and IGM heating due to Pop III supernovae explosions

Biman B. Nath, Peter L. Biermann, Ranita Jana

arxiv:1812.07404 v1 · 2018-12-17 · astro-ph.HE · 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{VVUVFJK26DOQKD3XCYDDASOA7Y}

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	2026-05-17T23:57:07.202040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad6952a55af0dd050f7716063049c0fe18e5be74751414b4ed33f68eada1f91a

Aliases

arxiv: 1812.07404 · arxiv_version: 1812.07404v1 · doi: 10.48550/arxiv.1812.07404 · pith_short_12: VVUVFJK26DOQ · pith_short_16: VVUVFJK26DOQKD3X · pith_short_8: VVUVFJK2

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/VVUVFJK26DOQKD3XCYDDASOA7Y \
  | 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: ad6952a55af0dd050f7716063049c0fe18e5be74751414b4ed33f68eada1f91a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a149363e5b8e859c9734da8b749f5c13e8bfe0693939cfc24839e4a6e1888fd3",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-12-17T10:55:50Z",
    "title_canon_sha256": "220e0ab6ab30d5b9fa0e22d21cd439aa98dcbc311aded0867f4992a6ab05c746"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07404",
    "kind": "arxiv",
    "version": 1
  }
}