Pith Number

pith:SYBDN34T

pith:2019:SYBDN34TOWXK2XGFKD7N74RZHF

not attested not anchored not stored refs pending

Optical polarization properties of February 2010 outburst of the blazar Mrk 421

B Vaidya, B van Soelen, F A Ramamonjisoa, K K Singh, P J Meintjes

arxiv:1905.04944 v1 · 2019-05-13 · 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{SYBDN34TOWXK2XGFKD7N74RZHF}

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	2026-05-17T23:44:53.919082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

960236ef9375aead5cc550fedff239394d817a05162be1799e4d75e38bf0b0df

Aliases

arxiv: 1905.04944 · arxiv_version: 1905.04944v1 · doi: 10.48550/arxiv.1905.04944 · pith_short_12: SYBDN34TOWXK · pith_short_16: SYBDN34TOWXK2XGF · pith_short_8: SYBDN34T

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/SYBDN34TOWXK2XGFKD7N74RZHF \
  | 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: 960236ef9375aead5cc550fedff239394d817a05162be1799e4d75e38bf0b0df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5146734707944ec2af8c591964e4d667c546e7e9380becff12728ee86739427a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-05-13T10:18:48Z",
    "title_canon_sha256": "ca53d69c2eefdacec2a19d0bcaf3cc177b9086c50a77b628305a647114bd02af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04944",
    "kind": "arxiv",
    "version": 1
  }
}