Pith Number

pith:TMM4UXH3

pith:2014:TMM4UXH3X4T5RIU7WORM6EEZPA

not attested not anchored not stored refs pending

Closest Safe Approach to an Accreting Black Hole

Benjamin K. Tippett, Ivan Booth

arxiv:1406.4039 v1 · 2014-06-16 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TMM4UXH3X4T5RIU7WORM6EEZPA}

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	2026-05-18T02:39:38.881160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b19ca5cfbbf27d8a29fb3a2cf109978259adca6ad664dfe8047b5331e6055ed

Aliases

arxiv: 1406.4039 · arxiv_version: 1406.4039v1 · doi: 10.48550/arxiv.1406.4039 · pith_short_12: TMM4UXH3X4T5 · pith_short_16: TMM4UXH3X4T5RIU7 · pith_short_8: TMM4UXH3

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/TMM4UXH3X4T5RIU7WORM6EEZPA \
  | 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: 9b19ca5cfbbf27d8a29fb3a2cf109978259adca6ad664dfe8047b5331e6055ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "773d0a552b85acfbc8ea304b2a615de2e0001093f4089aa9dda999f0d5810f75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-06-16T15:08:18Z",
    "title_canon_sha256": "865754991a774fd91cb3d7421d1701bd74dfa46b54d7b307412d2ecf30a58dbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4039",
    "kind": "arxiv",
    "version": 1
  }
}