Pith Number

pith:AM6LUDIG

pith:2012:AM6LUDIGPVIUDIEWDA7IXNSO7J

not attested not anchored not stored refs pending

A Quadruple or Triple Origin For Tycho B and SN 1572

Andrew Gould, Todd A. Thompson

arxiv:1210.6050 v1 · 2012-10-22 · astro-ph.SR · astro-ph.GA · 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{AM6LUDIGPVIUDIEWDA7IXNSO7J}

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	2026-05-18T03:42:33.435678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

033cba0d067d5141a096183e8bb64efa53bd8f560c49cdc9fde7b68b5f05f079

Aliases

arxiv: 1210.6050 · arxiv_version: 1210.6050v1 · doi: 10.48550/arxiv.1210.6050 · pith_short_12: AM6LUDIGPVIU · pith_short_16: AM6LUDIGPVIUDIEW · pith_short_8: AM6LUDIG

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/AM6LUDIGPVIUDIEWDA7IXNSO7J \
  | 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: 033cba0d067d5141a096183e8bb64efa53bd8f560c49cdc9fde7b68b5f05f079

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e024ff734a35650a119ef591161dfa3073bf45d09603e7d182ebff3465e6825c",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-10-22T20:09:07Z",
    "title_canon_sha256": "cf81c3b9009d15007cb09e55679f5e328902fb643b962c1182a30323551807fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6050",
    "kind": "arxiv",
    "version": 1
  }
}