Pith Number

pith:VSPKH4TS

pith:2010:VSPKH4TSGAHI5HA624HG2NI4V6

not attested not anchored not stored refs pending

The Metal-Enriched Outer Disk of NGC 2915

Andrey V. Kravtsov, David A. Thilker, Gerhardt R. Meurer, Jessica K. Werk, Joss Bland-Hawthorn, Kenneth C. Freeman, Mary E. Putman, Ronald J. Allen

arxiv:1004.1342 v1 · 2010-04-08 · 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{VSPKH4TSGAHI5HA624HG2NI4V6}

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	2026-05-18T02:08:07.896537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac9ea3f272300e8e9c1ed70e6d351caf86f9f4694e3a4bc59bf36edcfa060092

Aliases

arxiv: 1004.1342 · arxiv_version: 1004.1342v1 · doi: 10.48550/arxiv.1004.1342 · pith_short_12: VSPKH4TSGAHI · pith_short_16: VSPKH4TSGAHI5HA6 · pith_short_8: VSPKH4TS

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/VSPKH4TSGAHI5HA624HG2NI4V6 \
  | 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: ac9ea3f272300e8e9c1ed70e6d351caf86f9f4694e3a4bc59bf36edcfa060092

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83c25ff03428eb70124e918a88253cce5e3d604a8fe4470e12c78da458a776d3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-08T14:03:54Z",
    "title_canon_sha256": "da6d60e32d63a316e678fe6f26b7a114d9232199b4df8cc5fe4ebda66ec92a91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1342",
    "kind": "arxiv",
    "version": 1
  }
}