Pith Number

pith:DS7TXT2K

pith:2016:DS7TXT2KZRC2S2CLKPRQKJDAEZ

not attested not anchored not stored refs pending

A classical and a relativistic law of motion for SN1987A

L. Zaninetti

arxiv:1609.02939 v1 · 2016-09-08 · astro-ph.HE · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DS7TXT2KZRC2S2CLKPRQKJDAEZ}

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	2026-05-18T01:04:49.305944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cbf3bcf4acc45a9684b53e3052460265270eb98f4fedf8b73117bf2dfdd117d

Aliases

arxiv: 1609.02939 · arxiv_version: 1609.02939v1 · doi: 10.48550/arxiv.1609.02939 · pith_short_12: DS7TXT2KZRC2 · pith_short_16: DS7TXT2KZRC2S2CL · pith_short_8: DS7TXT2K

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/DS7TXT2KZRC2S2CLKPRQKJDAEZ \
  | 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: 1cbf3bcf4acc45a9684b53e3052460265270eb98f4fedf8b73117bf2dfdd117d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "968efb7327ddb33e4c4b84d9c1333e23f009563b05af9ab6bf6edcb7efcd4505",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-09-08T09:22:03Z",
    "title_canon_sha256": "43eb7c219aa27ab1be6f2422cf996ffadbd5a06bd4d774d199f07479e277ea85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.02939",
    "kind": "arxiv",
    "version": 1
  }
}