Pith Number

pith:UDRH4HKH

pith:2015:UDRH4HKHUNALHFFRDE7SDB25RU

not attested not anchored not stored refs pending

Surface Photometry and Metallicity of the Polar Ring Galaxy A0136-0801

Enrichetta Iodice, Magda Arnaboldi, Marilena Spavone

arxiv:1504.01710 v1 · 2015-04-07 · 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{UDRH4HKHUNALHFFRDE7SDB25RU}

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	2026-05-18T01:40:49.115777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0e27e1d47a340b394b1193f21875d8d2607e67604e7db635e306518d4c07d62

Aliases

arxiv: 1504.01710 · arxiv_version: 1504.01710v1 · doi: 10.48550/arxiv.1504.01710 · pith_short_12: UDRH4HKHUNAL · pith_short_16: UDRH4HKHUNALHFFR · pith_short_8: UDRH4HKH

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/UDRH4HKHUNALHFFRDE7SDB25RU \
  | 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: a0e27e1d47a340b394b1193f21875d8d2607e67604e7db635e306518d4c07d62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60e5c50ef4c64e218fcbcde677a409673d35e3c6e571eff521fed14043db5c24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-07T19:22:43Z",
    "title_canon_sha256": "4038fde03d2558df75dc0effec8efeb5d50ec3f11c6112d8d891638b8eef344a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01710",
    "kind": "arxiv",
    "version": 1
  }
}