Pith Number

pith:PX2EI3BR

pith:2012:PX2EI3BR5D74BSGN4YF5MQBZMH

not attested not anchored not stored refs pending

On the formation of CIII 4647-50-51 and CIII 5696 in O star atmospheres

(2) University of Pittsburgh), CNRS & Montpellier University, D.J. Hillier (2) ((1) LUPM, F. Martins (1)

arxiv:1208.0152 v1 · 2012-08-01 · 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{PX2EI3BR5D74BSGN4YF5MQBZMH}

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	2026-05-18T01:56:00.266398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7df4446c31e8ffc0c8cde60bd6403961d233a36465544afb6d957d48024a8983

Aliases

arxiv: 1208.0152 · arxiv_version: 1208.0152v1 · doi: 10.48550/arxiv.1208.0152 · pith_short_12: PX2EI3BR5D74 · pith_short_16: PX2EI3BR5D74BSGN · pith_short_8: PX2EI3BR

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/PX2EI3BR5D74BSGN4YF5MQBZMH \
  | 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: 7df4446c31e8ffc0c8cde60bd6403961d233a36465544afb6d957d48024a8983

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b757855288ad04845a91a89ecbd9de439b83feb2c7b50180fa03ad4033d4906",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-08-01T09:37:30Z",
    "title_canon_sha256": "9ca450587b1e4d732be0d52bcb7d0afe8545eb0444dee352b1f9ca49be33daf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0152",
    "kind": "arxiv",
    "version": 1
  }
}