Pith Number

pith:ZSBG6KHZ

pith:2011:ZSBG6KHZXD3I23JGMATPSUXBD6

not attested not anchored not stored refs pending

Optical Polarization and Spectral Variability in the M87 Jet

C. C. Cheung (NRL), D. E. Harris (CfA), Eric Clausen-Brown (Purdue), Eric S. Perlman (FIT), GSFC), John A. Biretta (STScI), Juan P. Madrid (Swinburne), Lukasz Stawarz (JAXA), Markos Georganopoulos (UMBC, Matthew Bourque (FIT), Mihai Cara (FIT), Raymond C. Simons (FIT), Steven C. Adams (U. Georgia), William B. Sparks (STScI)

arxiv:1109.6252 v1 · 2011-09-28 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZSBG6KHZXD3I23JGMATPSUXBD6}

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	2026-05-18T02:00:22.033558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc826f28f9b8f68d6d266026f952e11f8d617b9a3b54100627f9e2ee298523a5

Aliases

arxiv: 1109.6252 · arxiv_version: 1109.6252v1 · doi: 10.48550/arxiv.1109.6252 · pith_short_12: ZSBG6KHZXD3I · pith_short_16: ZSBG6KHZXD3I23JG · pith_short_8: ZSBG6KHZ

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/ZSBG6KHZXD3I23JGMATPSUXBD6 \
  | 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: cc826f28f9b8f68d6d266026f952e11f8d617b9a3b54100627f9e2ee298523a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52b16ccb1950e17c7104531739e7bb10b1fa93a221fba76e401f169150d9f97f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-09-28T15:59:55Z",
    "title_canon_sha256": "d4a982e8f4f204306e5a4e619af3b60d23d8cd8c1a2fa12c44e9c3076d8539eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6252",
    "kind": "arxiv",
    "version": 1
  }
}