Pith Number

pith:DKYISD6A

pith:2012:DKYISD6A4EWKXI6B3RW5J6U5AQ

not attested not anchored not stored refs pending

Updated Analysis of a "Dark" Galaxy and its Blue Companion in the Virgo Cloud HI 1225+01

K. Wada, N. Ienaka, S. Oyabu, S. Takino, Y. Matsuoka

arxiv:1210.0073 v2 · 2012-09-29 · astro-ph.CO · 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{DKYISD6A4EWKXI6B3RW5J6U5AQ}

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	2026-05-18T01:54:12.579453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ab0890fc0e12caba3c1dc6dd4fa9d042186bb042c12946c20dbbffc4ac3d1a4

Aliases

arxiv: 1210.0073 · arxiv_version: 1210.0073v2 · doi: 10.48550/arxiv.1210.0073 · pith_short_12: DKYISD6A4EWK · pith_short_16: DKYISD6A4EWKXI6B · pith_short_8: DKYISD6A

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/DKYISD6A4EWKXI6B3RW5J6U5AQ \
  | 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: 1ab0890fc0e12caba3c1dc6dd4fa9d042186bb042c12946c20dbbffc4ac3d1a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fde1da05a1d3a60a65b360a954a4f3d65779b4fca639aa881f6e95fd303910f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-29T03:16:06Z",
    "title_canon_sha256": "ede2ec355fdc774d40e6aeda89988bfb0e579deae3ce21fbd1e7978cc7c632c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0073",
    "kind": "arxiv",
    "version": 2
  }
}