Pith Number

pith:XIWPDC26

pith:2015:XIWPDC264OXV5JCH6BN6TJKDD7

not attested not anchored not stored refs pending

A Hubble Astrometry Initiative: Laying the Foundation for the Next-Generation Proper-Motion Survey of the Local Group

Alis J. Deason, Andrew R. Wetzel, Daniel R. Weisz, Joshua D. Simon, Marla Geha, Michael Boylan-Kolchin, Nitya Kallivayalil, Sangmo Tony Sohn, Tobias K. Fritz

arxiv:1503.01785 v1 · 2015-03-05 · astro-ph.GA · 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{XIWPDC264OXV5JCH6BN6TJKDD7}

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	2026-05-18T02:25:04.348495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba2cf18b5ee3af5ea447f05be9a5431fe1855812bd97b621e49767e968c0c3ca

Aliases

arxiv: 1503.01785 · arxiv_version: 1503.01785v1 · doi: 10.48550/arxiv.1503.01785 · pith_short_12: XIWPDC264OXV · pith_short_16: XIWPDC264OXV5JCH · pith_short_8: XIWPDC26

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/XIWPDC264OXV5JCH6BN6TJKDD7 \
  | 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: ba2cf18b5ee3af5ea447f05be9a5431fe1855812bd97b621e49767e968c0c3ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8078a81cc5c38b20104151b4693eba6182ffe7381fc34e7f694000e7a80032cf",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-05T21:02:18Z",
    "title_canon_sha256": "7c9fa1ac9c9621941e506072e9aada8c959a3bdff9381d003595817af73cd3ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01785",
    "kind": "arxiv",
    "version": 1
  }
}