Pith Number

pith:2MMRCYRH

pith:2014:2MMRCYRHN7CEQBWXO2OBFIYBBQ

not attested not anchored not stored refs pending

The Lost Melody Phenomenon

Merlin Carl

arxiv:1407.3624 v5 · 2014-07-14 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2MMRCYRHN7CEQBWXO2OBFIYBBQ}

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	2026-05-18T02:23:26.968974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3191162276fc44806d7769c12a3010c1ec85ee487128c53a3f175e8cb16a5d5

Aliases

arxiv: 1407.3624 · arxiv_version: 1407.3624v5 · doi: 10.48550/arxiv.1407.3624 · pith_short_12: 2MMRCYRHN7CE · pith_short_16: 2MMRCYRHN7CEQBWX · pith_short_8: 2MMRCYRH

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/2MMRCYRHN7CEQBWXO2OBFIYBBQ \
  | 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: d3191162276fc44806d7769c12a3010c1ec85ee487128c53a3f175e8cb16a5d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d319ead5eccfad63ab49750521bab4ef4dc190db8e1f38e5d9d776a55c6e64f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-07-14T12:40:47Z",
    "title_canon_sha256": "427ed3aff10e14fafa0635abc30f0a82f916c18700c896cfe6fede83e8dc2b38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.3624",
    "kind": "arxiv",
    "version": 5
  }
}