Pith Number

pith:JT6UA4ZJ

pith:2019:JT6UA4ZJNEAL6TY3CCQIDL5COO

not attested not anchored not stored refs pending

Astro2020: From Stars to Compact Objects: The Initial-Final Mass Relation

B. Scott Gaudi, Casey Lam, Fatima Abdurrahman, Jessica R. Lu, Michael Medford, Nathan Golovich, Rachael L. Beaton, Will Dawson

arxiv:1904.01773 v1 · 2019-04-03 · astro-ph.SR · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JT6UA4ZJNEAL6TY3CCQIDL5COO}

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	2026-05-17T23:49:29.721675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cfd4073296900bf4f1b10a081afa27398b62d6b88f6303d17f9eb17a9d30261

Aliases

arxiv: 1904.01773 · arxiv_version: 1904.01773v1 · doi: 10.48550/arxiv.1904.01773 · pith_short_12: JT6UA4ZJNEAL · pith_short_16: JT6UA4ZJNEAL6TY3 · pith_short_8: JT6UA4ZJ

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/JT6UA4ZJNEAL6TY3CCQIDL5COO \
  | 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: 4cfd4073296900bf4f1b10a081afa27398b62d6b88f6303d17f9eb17a9d30261

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd9b01a09f2c333fb3023abd5d9985d965b837c0bd6baac1e4ed8f84ee67b0d0",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-03T05:18:36Z",
    "title_canon_sha256": "1496ab34ab70a111a46e07a633686cc44dc8932f20551b4376b886e6607d11ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01773",
    "kind": "arxiv",
    "version": 1
  }
}