Pith Number

pith:WB4IZXC2

pith:2013:WB4IZXC2EKOD7PAIDN2IHYSRCP

not attested not anchored not stored refs pending

Measuring Metallicities with HST/WFC3 photometry

Abhijit Saha, Alistair Walker, Barbara J. Anthony-Twarog, Bruce Twarog, Howard Bond, Jon Holtzman, Teresa L. Ross

arxiv:1310.4553 v1 · 2013-10-17 · 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{WB4IZXC2EKOD7PAIDN2IHYSRCP}

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	2026-05-18T03:10:13.779856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0788cdc5a229c3fbc081b7483e25113e68dba4e2eb90c2e02ee7bdf8dbedace

Aliases

arxiv: 1310.4553 · arxiv_version: 1310.4553v1 · doi: 10.48550/arxiv.1310.4553 · pith_short_12: WB4IZXC2EKOD · pith_short_16: WB4IZXC2EKOD7PAI · pith_short_8: WB4IZXC2

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/WB4IZXC2EKOD7PAIDN2IHYSRCP \
  | 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: b0788cdc5a229c3fbc081b7483e25113e68dba4e2eb90c2e02ee7bdf8dbedace

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf8149c0685d312e9f18dbe19d4c5cf19a8defc910184f5f9ba3d291d62bc96f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-10-17T00:22:27Z",
    "title_canon_sha256": "6deafd6ca74f397234c93bfbb0a650aa3cd3d2df622fae871153df27d6c4cd25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.4553",
    "kind": "arxiv",
    "version": 1
  }
}