Pith Number

pith:RQ6TNE4Y

pith:2012:RQ6TNE4YNMF7VRDZI4QWAOBWU6

not attested not anchored not stored refs pending

On the correct intrinsic VHE properties of the BL Lac H 2356-309

L. Costamante

arxiv:1208.0808 v1 · 2012-08-03 · 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{RQ6TNE4YNMF7VRDZI4QWAOBWU6}

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	2026-05-18T03:49:22.751829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c3d3693986b0bfac4794721603836a78e39c628968d7507f7ea6996e8a34f8c

Aliases

arxiv: 1208.0808 · arxiv_version: 1208.0808v1 · doi: 10.48550/arxiv.1208.0808 · pith_short_12: RQ6TNE4YNMF7 · pith_short_16: RQ6TNE4YNMF7VRDZ · pith_short_8: RQ6TNE4Y

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/RQ6TNE4YNMF7VRDZI4QWAOBWU6 \
  | 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: 8c3d3693986b0bfac4794721603836a78e39c628968d7507f7ea6996e8a34f8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f8b56a59514574fba47ca42ee442a995eaa5d2e440484b7280324efbc7981fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-08-03T18:16:29Z",
    "title_canon_sha256": "daac7c79ce2008a39fc740e9de233b7a03f102f141a4bef1294f16dcd1786592"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0808",
    "kind": "arxiv",
    "version": 1
  }
}