Pith Number

pith:BNOTSREP

pith:2009:BNOTSREPB65EOZMNF6OK4YSP35

not attested not anchored not stored refs pending

On the Hydrogen Recombination Time in Type II Supernova Atmospheres

E. Baron, P. H. Hauschildt, Soma De

arxiv:0910.0552 v1 · 2009-10-03 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BNOTSREPB65EOZMNF6OK4YSP35}

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	2026-05-18T02:11:34.680049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b5d39448f0fba47658d2f9cae624fdf5bc11fe7929d08855a0a2ae0e239f4da

Aliases

arxiv: 0910.0552 · arxiv_version: 0910.0552v1 · doi: 10.48550/arxiv.0910.0552 · pith_short_12: BNOTSREPB65E · pith_short_16: BNOTSREPB65EOZMN · pith_short_8: BNOTSREP

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/BNOTSREPB65EOZMNF6OK4YSP35 \
  | 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: 0b5d39448f0fba47658d2f9cae624fdf5bc11fe7929d08855a0a2ae0e239f4da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2616b70c612a312082e849e350e2d501ab6a0051c72326a5e9e3f401655d5ce0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-03T15:28:37Z",
    "title_canon_sha256": "bf95636c3b54c0ce464f826f2f9c3b90447a363e16dc489a353f661a909fc871"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0552",
    "kind": "arxiv",
    "version": 1
  }
}