Now You Know
Recording by Stephen Sondheim.
Recording identifiers
- ISRC
- TCAGK2281660
- CopyrightID (CopyrightChains transaction hash)
- 0xd26c0a068696539918f79ec93b3a9a15b98157c203b286c6fdcaffdfa3cde165
- Copyright registration time
- 2026-07-07T13:57:13+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19Z
- Bitcoin block
- 957118
- Canonical record hash
- sha256:72d6939feb6c46f03f72df26276b7be64512f22ecf40f9a166bf612f0239efef
What this proof establishes
This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.
CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.
Read the complete pre-generative-AI provenance and verification method.