Pith Number

pith:DFXJNRD5

pith:2009:DFXJNRD55GPVLTOXAK3EDCQEYG

not attested not anchored not stored refs pending

The new model of fitting the spectral energy distributions of Mkn 421 and Mkn 501

Jiancheng Wang, Jianping Yang, Xiaoyan Gao

arxiv:0907.1537 v1 · 2009-07-09 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DFXJNRD55GPVLTOXAK3EDCQEYG}

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	2026-05-18T02:34:38.982097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

196e96c47de99f55cdd702b6418a04c1970cfc87a8ec7120637f580ba1c2861e

Aliases

arxiv: 0907.1537 · arxiv_version: 0907.1537v1 · doi: 10.48550/arxiv.0907.1537 · pith_short_12: DFXJNRD55GPV · pith_short_16: DFXJNRD55GPVLTOX · pith_short_8: DFXJNRD5

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/DFXJNRD55GPVLTOXAK3EDCQEYG \
  | 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: 196e96c47de99f55cdd702b6418a04c1970cfc87a8ec7120637f580ba1c2861e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c12357522b7b1584f20d3b74e33b6fa6f6b37be54de7d8763591cbf27eed8c5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-07-09T13:20:20Z",
    "title_canon_sha256": "b580df414262a28c3e22ab6f905dda6e6553f56d41633772af10b3703cf04e06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1537",
    "kind": "arxiv",
    "version": 1
  }
}