Pith Number

pith:YI5VV53Q

pith:2013:YI5VV53QAHBY2SVUGCPZHLDR3U

not attested not anchored not stored refs pending

The M4 Core Project with HST --- I. Overview and First-Epoch

1), (10) Univ. of Amsterdam, 11), (11) Harvard-Smithsonian CfA, (12) Sam Houston State Univ., 13), (13) Eureka Scientific, (14) Aarhus Univ., 15), (15) Univ. of Victoria), (2) STScI, (3) Univ. of Edinburg, (4) Univ. of Padova, (5) IAC, 6, (6) Univ. of La Laguna, 7), (7) RSAA-ANU, (8) N. Copernicus AC Warsaw, (9) UCLA, A. Bellini (2), A. F. Marino (7). ((1) INAF-OAPD, A. P. Milone (5, D. C. Heggie (3), D. Pooley (12, G. Piotto (4, Inc., K. Brogaard (14, L. Malavolta (4, L. R. Bedin (1) J. Anderson (2), L. Ubeda (2), M. Giersz (8), M. van den Berg (10, R. M. Rich (9), S. Ortolani (4, V. Nascimbeni (4

arxiv:1312.1096 v1 · 2013-12-04 · 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{YI5VV53QAHBY2SVUGCPZHLDR3U}

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	2026-05-18T01:45:58.782254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c23b5af77001c38d4ab4309f93ac71dd345f28713b398fdcddb85b9bb3632162

Aliases

arxiv: 1312.1096 · arxiv_version: 1312.1096v1 · doi: 10.48550/arxiv.1312.1096 · pith_short_12: YI5VV53QAHBY · pith_short_16: YI5VV53QAHBY2SVU · pith_short_8: YI5VV53Q

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/YI5VV53QAHBY2SVUGCPZHLDR3U \
  | 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: c23b5af77001c38d4ab4309f93ac71dd345f28713b398fdcddb85b9bb3632162

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4345ad4a572cce39c547455eec0399ad0611b45e11d71a35582370bf15e4463",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-04T10:19:18Z",
    "title_canon_sha256": "0f49fbf0653479c74ef7d07735f229cc902b502bbfa0575c0c32c284b6963ab5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1096",
    "kind": "arxiv",
    "version": 1
  }
}