pith. sign in
Pith Number

pith:DXD3KXXJ

pith:2011:DXD3KXXJG3VGXAESLSGKBEYRYG
not attested not anchored not stored refs pending

Very hard gamma-ray emission from a flare of Mrk 501

A.M.Taylor, A.Neronov, D.V.Semikoz

arxiv:1104.2801 v2 · 2011-04-14 · astro-ph.HE

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{DXD3KXXJG3VGXAESLSGKBEYRYG}

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 2026-05-18T02:02:28.899042Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1dc7b55ee936ea6b80925c8ca09311c19898f9aed8bacf5adf2dff5188a42519

Aliases

arxiv: 1104.2801 · arxiv_version: 1104.2801v2 · doi: 10.48550/arxiv.1104.2801 · pith_short_12: DXD3KXXJG3VG · pith_short_16: DXD3KXXJG3VGXAES · pith_short_8: DXD3KXXJ
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/DXD3KXXJG3VGXAESLSGKBEYRYG \
  | 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: 1dc7b55ee936ea6b80925c8ca09311c19898f9aed8bacf5adf2dff5188a42519
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c100f502b80d360641e57f60652710f5b0ab355b2c94fe99cde6f61a81360f03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-04-14T15:24:59Z",
    "title_canon_sha256": "4cad56b46bb3c61e2782906690286d0416373d6c2fa369ad4dccac4f032b6369"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2801",
    "kind": "arxiv",
    "version": 2
  }
}