Pith Number

pith:KL7OVKAA

pith:2012:KL7OVKAAKBZ74WZEK3MIUUTEFP

not attested not anchored not stored refs pending

Environments of massive stars and the upper mass limit

Paul A. Crowther (Sheffield)

arxiv:1209.3046 v1 · 2012-09-13 · astro-ph.SR · 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{KL7OVKAAKBZ74WZEK3MIUUTEFP}

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	2026-05-18T03:45:32.930062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52feeaa8005073fe5b2456d88a52642bfa559cdc07c372c4c808b9256619023c

Aliases

arxiv: 1209.3046 · arxiv_version: 1209.3046v1 · doi: 10.48550/arxiv.1209.3046 · pith_short_12: KL7OVKAAKBZ7 · pith_short_16: KL7OVKAAKBZ74WZE · pith_short_8: KL7OVKAA

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/KL7OVKAAKBZ74WZEK3MIUUTEFP \
  | 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: 52feeaa8005073fe5b2456d88a52642bfa559cdc07c372c4c808b9256619023c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "506b1f4f74e5c6feeb2fd2ac9064e6d393d429855d73d714f397fd854e7c666b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-13T21:24:53Z",
    "title_canon_sha256": "54b6d72e49524e5f7342079d65868bd0fbc698985cc2e148468793bb5ec46e92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3046",
    "kind": "arxiv",
    "version": 1
  }
}