Pith Number

pith:SB4PIPTN

pith:2016:SB4PIPTNSJW2U5BDCSHEJXADD3

not attested not anchored not stored refs pending

Abundances in a sample of turnoff and subgiant stars in NGC 6121 (M4)

Andrew J. Gallagher, Elisabetta Caffau, Francois Spite, Lorenzo Monaco, Monique Spite, Piercarlo Bonifacio, Sandro Villanova

arxiv:1608.03541 v1 · 2016-08-11 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SB4PIPTNSJW2U5BDCSHEJXADD3}

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	2026-05-18T01:01:22.527221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9078f43e6d926daa7423148e44dc031ee759224112bacf3309f80d0df7943ba2

Aliases

arxiv: 1608.03541 · arxiv_version: 1608.03541v1 · doi: 10.48550/arxiv.1608.03541 · pith_short_12: SB4PIPTNSJW2 · pith_short_16: SB4PIPTNSJW2U5BD · pith_short_8: SB4PIPTN

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/SB4PIPTNSJW2U5BDCSHEJXADD3 \
  | 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: 9078f43e6d926daa7423148e44dc031ee759224112bacf3309f80d0df7943ba2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4222b4f25ab29b76b8f4fdf61d57c8661b418a96191745e4c3a239afdde13d2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-08-11T17:32:06Z",
    "title_canon_sha256": "f76b3c1a263f6d80282a28f848e1394237ccd8b3631783fe1e38b76635bb6d47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.03541",
    "kind": "arxiv",
    "version": 1
  }
}