Pith Number

pith:FJ5TSVUK

pith:2009:FJ5TSVUKBWD2TQOL5AAKXKTE2O

not attested not anchored not stored refs pending

The hard TeV spectrum of 1ES 0229+200: new clues from Swift

(2) KIPAC, (3) Padova Univ.), A. Franceschini (3) ((1) INAF-OABrera, F. Tavecchio (1) G. Ghisellini (1), G. Ghirlanda (1), L. Costamante (2), Stanford

arxiv:0905.0899 v2 · 2009-05-06 · 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{FJ5TSVUKBWD2TQOL5AAKXKTE2O}

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	2026-05-18T02:13:47.002033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a7b39568a0d87a9c1cbe800abaa64d38ad3add7197f6754d290d49fb1e7118b

Aliases

arxiv: 0905.0899 · arxiv_version: 0905.0899v2 · doi: 10.48550/arxiv.0905.0899 · pith_short_12: FJ5TSVUKBWD2 · pith_short_16: FJ5TSVUKBWD2TQOL · pith_short_8: FJ5TSVUK

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/FJ5TSVUKBWD2TQOL5AAKXKTE2O \
  | 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: 2a7b39568a0d87a9c1cbe800abaa64d38ad3add7197f6754d290d49fb1e7118b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bf66e5ada20a1333669fde5ac0477d640a5f2bb2e7b29bac91f27668a792f60",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-06T20:00:06Z",
    "title_canon_sha256": "cf4097b9e35981a91a2e91592103f8433f993b5df154b53fa03e8f482be3ef85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0899",
    "kind": "arxiv",
    "version": 2
  }
}