Pith Number

pith:UTX7A2I2

pith:2015:UTX7A2I2W57KLX3RO5SOU6QTEV

not attested not anchored not stored refs pending

Rapid variability at very high energies in Mrk 501

Agnieszka Jacholkowska, Andrew Taylor (for the H.E.S.S. Collaboration), Carlo Romoli, Frank Rieger, Gabriele Cologna, Max Anton Kastendieck, Nachiketa Chakraborty, Stefan J. Wagner

arxiv:1509.04893 v1 · 2015-09-16 · 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{UTX7A2I2W57KLX3RO5SOU6QTEV}

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	2026-07-04T23:55:03.017755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4eff0691ab77ea5df717764ea7a13255a5fc2279e86d47e922ea3f97b26640e

Aliases

arxiv: 1509.04893 · arxiv_version: 1509.04893v1 · doi: 10.48550/arxiv.1509.04893 · pith_short_12: UTX7A2I2W57K · pith_short_16: UTX7A2I2W57KLX3R · pith_short_8: UTX7A2I2

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/UTX7A2I2W57KLX3RO5SOU6QTEV \
  | 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: a4eff0691ab77ea5df717764ea7a13255a5fc2279e86d47e922ea3f97b26640e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d9811b58ca5ca5476d1c8dcd675e4cf982201ab22df08bc1de21999bd20468d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-09-16T11:56:56Z",
    "title_canon_sha256": "96f5f4aad351a532678f377cf5bd97efeae73e06db221bc62f9ec42cbbfd5510"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04893",
    "kind": "arxiv",
    "version": 1
  }
}