Pith Number

pith:J4KL263R

pith:2011:J4KL263RR3SBRNOYBTTD3J7WWM

not attested not anchored not stored refs pending

Variability in Blazars: Clues from PKS 2155-304

Ramesh Narayan, Tsvi Piran

arxiv:1107.5812 v1 · 2011-07-28 · 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{J4KL263RR3SBRNOYBTTD3J7WWM}

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	2026-05-18T02:01:06.148207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f14bd7b718ee418b5d80ce63da7f6b31ce690a03860cba38ae7b0f86f493aff

Aliases

arxiv: 1107.5812 · arxiv_version: 1107.5812v1 · doi: 10.48550/arxiv.1107.5812 · pith_short_12: J4KL263RR3SB · pith_short_16: J4KL263RR3SBRNOY · pith_short_8: J4KL263R

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/J4KL263RR3SBRNOYBTTD3J7WWM \
  | 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: 4f14bd7b718ee418b5d80ce63da7f6b31ce690a03860cba38ae7b0f86f493aff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8908b69371a73703b7d5da7185f4132cfd565d064558001b75bd296bc30da4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-07-28T20:00:04Z",
    "title_canon_sha256": "ae104aea383131c190241b90de05c9d9ffbeaf0d695cbb6a9a2fa5d51e3205d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5812",
    "kind": "arxiv",
    "version": 1
  }
}