Robert Alan Mintzer (born January 27, 1953) is an American jazz saxophonist, composer, arranger, and big band leader. Early life Mintzer was born and raised in a Jewish family in New Rochelle, New Yo
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 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 0xe68ed99bfd3ebaf0de4d71c5c32fdc223e8d123a607e6879a8cdf91a7c0237b6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73067c39-a8e7-4761-9e9f-6d40b3381da5.json and https://artists.proofprofile.net/proofs/artist/73067c39-a8e7-4761-9e9f-6d40b3381da5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quiet Yesterday (Abeat Signature Series)
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 0x311d62ef30cd59bde8495433f2c7fa61bc8b241a6383cc840871316e3a7b57a0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ITZJ51200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ea76b82e1ea061572e14ad3fe36592b765c1118b80e85d8a87f52534dc4607. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITZJ51200007.
La vita è bella (Soundtrack of R. Benigni's Movie )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcd4091800f13eed9109ddb3e9bf9652f13d962d02a8143440b5e330c005397. 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/DEBL60990414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614c4bbf9e3b5a1d33a564a226416df67e1ba9663742f5071f458143d28a88c2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR6V82012191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e062a55ecc4f98b116236d39e00aff3ba92d05c3e673437a8b531031cc9ee84. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR6V82012187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f600234b3cc79ec090ef57719413f7e74f9687818db92df850e0839472b406d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR6V82012185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9033d945567438b882255d9137d2415901a1ad0dfb3d948e84a63d2bd5aaac2c. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/FRX761507707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708aef67d9ae777b3e075485b6074552f72b7cd23ac8067b9ae29350c86324fb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USZ6S9970905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9722da6d328ba07561405d7a70f5b8f8f857495dd86389635a3e13d334aff83. 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/USZ6S9724102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7539d582ddbbf57bdc0798a2e6f83eea8629d22bf30adbd41cd98141e2a5b6f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEK931532108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb7e69f33cc903bef6896585767d313406330a8b746af47143e73352981f243. 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/QZVMJ2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66335280e94a82700eee8a8c4431ac424318fe680aaee7e0d46d1fb352162bf9. 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/QZVMJ2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322e52de12f4047c7c2fb5ef205b6541262962abd30e7fc04edac9a73ffb7d0b. 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/QZVMJ2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af0d37d132283cf576822ab79115038ff4e81cd076e7c8cd34413692616a58f. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZVMJ2200011.
Drum'n Voice, Vols. 1, 2, 3 & 4 (The Complete Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83b51f37da80643ea12f855609cefd50a4a1886926d00f7a96a72e4e6f79e27. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FRX761507701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625717a3dc7ff6dc4f0b649485a0676e3733693c50c526f1c4a627e04a6f078b. 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/FRX761516787.