Pith Number

pith:ATHV4BNQ

pith:2011:ATHV4BNQD7ZL4EPOJQIEDFAOQD

not attested not anchored not stored refs pending

HI in Arp72 and similarities with M51-type systems

Chandreyee Sengupta, D.J. Saikia, K. S. Dwarakanath

arxiv:1109.2741 v1 · 2011-09-13 · 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{ATHV4BNQD7ZL4EPOJQIEDFAOQD}

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	2026-05-18T02:00:33.757927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04cf5e05b01ff2be11ee4c1041940e80dfb5b5dc03afd7b58cde47b96fc504ac

Aliases

arxiv: 1109.2741 · arxiv_version: 1109.2741v1 · doi: 10.48550/arxiv.1109.2741 · pith_short_12: ATHV4BNQD7ZL · pith_short_16: ATHV4BNQD7ZL4EPO · pith_short_8: ATHV4BNQ

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/ATHV4BNQD7ZL4EPOJQIEDFAOQD \
  | 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: 04cf5e05b01ff2be11ee4c1041940e80dfb5b5dc03afd7b58cde47b96fc504ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52035ef911050de2cd69ce2523bd268a210b6a98757813c6e3b14fd474df0d25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-13T10:39:38Z",
    "title_canon_sha256": "0de61e51c36c3582ad1b5d1c6b1cf430a9869d70a0103ace5d59d615f287e7fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2741",
    "kind": "arxiv",
    "version": 1
  }
}