Pith Number

pith:FYJWE7M2

pith:2015:FYJWE7M2YYAL4YPY7NC2JTXSS7

not attested not anchored not stored refs pending

Black Holes and the Scientific Process

Manojendu Choudhury

arxiv:1506.01957 v1 · 2015-02-05 · physics.pop-ph · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FYJWE7M2YYAL4YPY7NC2JTXSS7}

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	2026-05-18T01:55:58.807079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e13627d9ac600be61f8fb45a4cef297c149f9f12470d495cb1700e38fbd5d5f

Aliases

arxiv: 1506.01957 · arxiv_version: 1506.01957v1 · doi: 10.48550/arxiv.1506.01957 · pith_short_12: FYJWE7M2YYAL · pith_short_16: FYJWE7M2YYAL4YPY · pith_short_8: FYJWE7M2

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/FYJWE7M2YYAL4YPY7NC2JTXSS7 \
  | 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: 2e13627d9ac600be61f8fb45a4cef297c149f9f12470d495cb1700e38fbd5d5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bf1a263b933afed7317f3e7d6cae5951dd06636d17dcebf3dbdab461d35ba2f",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2015-02-05T05:18:36Z",
    "title_canon_sha256": "8b1505b6d163a652f48712b62cb67c0fef6246e6c770e11146af5dc435d2a389"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01957",
    "kind": "arxiv",
    "version": 1
  }
}