Peter Matz (November 6, 1928 – August 9, 2002) was an American musician, composer, arranger, and conductor. His musical career in film, theater, television, and studio recording spanned fifty years. H
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb9c30fccfa18264ef9dd24980805a233ce8f66d80c64a4fd463cf09235b76b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38b30e7e-3fbf-460d-9e2a-706d1f3b2947.json and https://artists.proofprofile.net/proofs/artist/38b30e7e-3fbf-460d-9e2a-706d1f3b2947.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Du nimmst dich immer mit (Funkrock Version)
Samuel Ramey/National Philharmonic Orchestra/Peter Matz
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea9a2149059355cf8a13a184023126eed507333d7b4baa92b985c1e7589fe36. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8801332.
The Marvelous Mrs. Maisel: Season 5 (Music From The Prime Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921c4904fcf150ad16aa611fc8b5851834c6c68df8a94d93bacc04d64398a3ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10022901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5c47a131639d7a1c81bd69264c4983716731e7967fbb39f587d47991a56eca. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10022888.
Oh, what a beautiful mornin' from Oklahoma! (arr. Matz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e4bdc8fbc582d939e77170767fad2e666b0284d3857ccf18c69118e1efb72e. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T17:21:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8801336.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3af6cf2d68d509f45b5378d1feaad06193d47e2608038bb8f8c3d62b61bb97d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9300668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71486f9b80880ec7b162f29522c64a87465e20d5267ac0f15e73384994634e7d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9302514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0cdf9fc3d8ca2f9765fa386568510540b9f46a803511bc751cb414ac703018. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9300657.
Born to Dance: I've Got You Under My Skin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52800667d155b2ea16284a62227ef6962afbf835c8d4a457f57473dad7b8ccd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9300659.