Pith Number

pith:ILZ6URDS

pith:2009:ILZ6URDSYYMYSJWZYXBOJUNMSB

not attested not anchored not stored refs pending

High-energy antiprotons from old supernova remnants

Pasquale Blasi, Pasquale D. Serpico

arxiv:0904.0871 v2 · 2009-04-06 · 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{ILZ6URDSYYMYSJWZYXBOJUNMSB}

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	2026-07-04T15:53:12.867930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42f3ea4472c6198926d9c5c2e4d1ac907d7975b47e49c871a5ade464fa9b2060

Aliases

arxiv: 0904.0871 · arxiv_version: 0904.0871v2 · doi: 10.48550/arxiv.0904.0871 · pith_short_12: ILZ6URDSYYMY · pith_short_16: ILZ6URDSYYMYSJWZ · pith_short_8: ILZ6URDS

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/ILZ6URDSYYMYSJWZYXBOJUNMSB \
  | 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: 42f3ea4472c6198926d9c5c2e4d1ac907d7975b47e49c871a5ade464fa9b2060

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6ef1e097050aacdb32b6758cd90a82c15efd32ae38a889db4c688d82932acd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-04-06T09:02:03Z",
    "title_canon_sha256": "3e6a14f2b6e429ec4b2b81126c007dafba16421630adfaa27528129e1f0fb90c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0871",
    "kind": "arxiv",
    "version": 2
  }
}