Pith Number

pith:HJBW7FXQ

pith:2020:HJBW7FXQ4ZLFU4Z55EBJMNXUZY

not attested not anchored not stored refs pending

Impact of intrinsic polarisation of Sgr A* historical flares on (polarisation) properties of their X-ray echoes

Eugene Churazov, Ildar Khabibullin, Rashid Sunyaev

arxiv:2004.01960 v2 · 2020-04-04 · astro-ph.HE · 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{HJBW7FXQ4ZLFU4Z55EBJMNXUZY}

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	2026-07-05T01:33:37.304023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a436f96f0e6565a733de9029636f4ce2eae7954a4c66e23362a012bceb5ad06

Aliases

arxiv: 2004.01960 · arxiv_version: 2004.01960v2 · doi: 10.48550/arxiv.2004.01960 · pith_short_12: HJBW7FXQ4ZLF · pith_short_16: HJBW7FXQ4ZLFU4Z5 · pith_short_8: HJBW7FXQ

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/HJBW7FXQ4ZLFU4Z55EBJMNXUZY \
  | 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: 3a436f96f0e6565a733de9029636f4ce2eae7954a4c66e23362a012bceb5ad06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab30d6c99c5ec2e5331a37cba82e3e555c0cd1aae4d5026b13c5a8f3ca43ca6c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-04-04T15:45:23Z",
    "title_canon_sha256": "5e0ac5ff17af296a22f562eda706a39caa3709206ed24d44222cd3302899f1e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01960",
    "kind": "arxiv",
    "version": 2
  }
}