Pith Number

pith:7JYI23C7

pith:2008:7JYI23C7OPOSZDZGKH3YBDXFKX

not attested not anchored not stored refs pending

Dark matter annihilation effects on the first stars

A. Bressan, A. Ferrara, E. Ripamonti, F. Iocco, P. Marigo, R. Schneider

arxiv:0805.4016 v2 · 2008-05-26 · astro-ph · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7JYI23C7OPOSZDZGKH3YBDXFKX}

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	2026-05-18T04:29:33.542883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa708d6c5f73dd2c8f2651f7808ee555cdaab94aa82bc0f94423625db4756cca

Aliases

arxiv: 0805.4016 · arxiv_version: 0805.4016v2 · doi: 10.48550/arxiv.0805.4016 · pith_short_12: 7JYI23C7OPOS · pith_short_16: 7JYI23C7OPOSZDZG · pith_short_8: 7JYI23C7

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/7JYI23C7OPOSZDZGKH3YBDXFKX \
  | 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: fa708d6c5f73dd2c8f2651f7808ee555cdaab94aa82bc0f94423625db4756cca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b70974544a114150f42cc6357eeb93007b728af6f75b3c05504dd63a082e36f",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-05-26T20:06:09Z",
    "title_canon_sha256": "31022598451e37cc36bdbcbadf78daeaa8090f6bca5ae7012175eb604c34ecbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4016",
    "kind": "arxiv",
    "version": 2
  }
}