Pith Number

pith:IRVAHSBI

pith:2015:IRVAHSBIHFQUAU52CX4UIUBDSM

not attested not anchored not stored refs pending

Ha Velocity Fields and Galaxy Interaction in the Quartet of Galaxies NGC 7769, 7770, 7771 and 7771A

A. A. Hakobyan, A. A. Yeghiazaryan, T. A. Nazaryan

arxiv:1510.00193 v2 · 2015-10-01 · 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{IRVAHSBIHFQUAU52CX4UIUBDSM}

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	2026-05-18T01:19:00.252744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

446a03c82839614053ba15f94450239305ba2b1a9afdc3ec9d04509ff6cd6347

Aliases

arxiv: 1510.00193 · arxiv_version: 1510.00193v2 · doi: 10.48550/arxiv.1510.00193 · pith_short_12: IRVAHSBIHFQU · pith_short_16: IRVAHSBIHFQUAU52 · pith_short_8: IRVAHSBI

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/IRVAHSBIHFQUAU52CX4UIUBDSM \
  | 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: 446a03c82839614053ba15f94450239305ba2b1a9afdc3ec9d04509ff6cd6347

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "287f8f00e49eaaaac5cf698b4c8c8f645244a03a59176d31daf11aed959a3e28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-01T11:50:34Z",
    "title_canon_sha256": "bd53a6cab634b8a6ef427924b8f88f8fe47a6d64acedb4afebc9318edc1a22a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.00193",
    "kind": "arxiv",
    "version": 2
  }
}