Pith Number

pith:FX43VF7A

pith:2021:FX43VF7AL53EBZ72USIC5OZAEA

not attested not anchored not stored refs pending

On the Meaning of Various Mass Definitions for Asymptotically Flat Spacetimes

Dan N. Vollick

arxiv:2101.12570 v1 · 2021-01-28 · 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{FX43VF7AL53EBZ72USIC5OZAEA}

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	2026-07-05T02:10:45.514720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2df9ba97e05f7640e7faa4902ebb202008ff78a69667abbd05b4fbb14a0e2016

Aliases

arxiv: 2101.12570 · arxiv_version: 2101.12570v1 · doi: 10.48550/arxiv.2101.12570 · pith_short_12: FX43VF7AL53E · pith_short_16: FX43VF7AL53EBZ72 · pith_short_8: FX43VF7A

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/FX43VF7AL53EBZ72USIC5OZAEA \
  | 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: 2df9ba97e05f7640e7faa4902ebb202008ff78a69667abbd05b4fbb14a0e2016

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93fc869f2bc66ad60da37a09ad66a57636416b36afd6dfbcee331a8eb47445ee",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-01-28T17:48:40Z",
    "title_canon_sha256": "f5affc030c206cc9bbb0aba346d842f6d85c26a2f8a18136583b16f4a695b6ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.12570",
    "kind": "arxiv",
    "version": 1
  }
}