Pith Number

pith:TIXWWP62

pith:2015:TIXWWP62JW7AEZXCVWBZOOY7GI

not attested not anchored not stored refs pending

Polarization in lines - a new method for measuring black hole masses in active galaxies

Luka C. Popovic, Victor L. Afanasiev

arxiv:1501.07730 v2 · 2015-01-30 · 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{TIXWWP62JW7AEZXCVWBZOOY7GI}

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	2026-05-18T01:41:05.706974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a2f6b3fda4dbe0266e2ad83973b1f322bae00b6ca7a60cedd29124d67458bb2

Aliases

arxiv: 1501.07730 · arxiv_version: 1501.07730v2 · doi: 10.48550/arxiv.1501.07730 · pith_short_12: TIXWWP62JW7A · pith_short_16: TIXWWP62JW7AEZXC · pith_short_8: TIXWWP62

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/TIXWWP62JW7AEZXCVWBZOOY7GI \
  | 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: 9a2f6b3fda4dbe0266e2ad83973b1f322bae00b6ca7a60cedd29124d67458bb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e67b92cb2821c5624b9b97c9e74643d08f921478444edd53e44be1a6e7dcd25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-30T11:19:14Z",
    "title_canon_sha256": "64aba03219855f3e37aea371189859680649315cfd6711c6366c2867258f4426"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07730",
    "kind": "arxiv",
    "version": 2
  }
}