Bernard Alfred "Jack" Nitzsche ( ; April 22, 1937 – August 25, 2000) was an American musician, arranger, songwriter, composer, and record producer. He came to prominence in the early 1960s as the righ
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 0x3b9cafa76cebbb1aa6c214681445a23be08401dbe7fb8210cb997c7e65a5effc. 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/98bee47b-cc28-420d-8f34-2dd6dd803fdb.json and https://artists.proofprofile.net/proofs/artist/98bee47b-cc28-420d-8f34-2dd6dd803fdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb91e285fc10cfb6f4df596ff8e116dde1f38ad9db61bba9b03c45f7b3878f4c9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USWB10403503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5a206279f859b79d8283ca8b645ae0616b5855271a2ad5bade8d7f63ea93ea. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USWB10403505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae57a690373f59eda1cf8b948a182e6f776813ca57eab8229688782f38dd7f2a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USWB10403509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b6bc71b8ea4cc516051ab036570c85cd43cb5021869066568bf33a1241e08d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USWB10403510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0557b7121dcc4580c38b6f3e0272e7bc18c8a4067e720a8b752fb10a03565714. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USWB10403511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac874efc6af83fecfde120377bea9f4b20e0b001fb0be851ef861e1548f82dd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USRE10601554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402625e183b0ffbfc515ebeaf13df4d53cc08f3e1eb92b2b5126d916af55d62a. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USRE10601555.
Starman (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910435afb90e55764c69bafc5649cec42950a0d37c24164ee7de0e302da9afee. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBDGA2206498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf89e0cc2b623b84f5d8513ab878995130bb9fd1edaaa38c5f11cf51c99c8eba. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBDGA2206503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2743e12f652464608e32c790a0f4c6114b9070a5d55254ef1c3304bf1462eaff. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GBDGA2206505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d7118e386d53917e5c778e4480ead912c52e9ffdd14ab1651b4f7d8792b26e. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/GBDGA2206509.
Three Piece Suite: The Reprise Recordings 1971-1973
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830f96b904584858da432cc6c349e92c229685618a0a573a1a5032ed15e7d68e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWB10001635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b5b39928cf955227bf4f9754cbba6386bb2160dc3c86b4a28ff43cbd178001. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USRE10500157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cde3cffa86ca285382adfd3bdf5e8317b9602683af17dfec810597781f2ae6a. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USWB10700870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56614da8b803a842a6da775a9eba140d82cfa0fd95c63337b7609eb669a4ffba. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USRE12000788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561b920a4376e9dbf81e29c5e832d47d140a1b90194b2e148a13f7cdda686fa8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USRE11300157.
One Flew Over The Cuckoo's Nest (Original Motion Picture Soundtrack / 50th Anniversary / Remastered 2025)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528360ac3f8c7eea44a788153b0dba8e2472d33a29598fa51e8ad5dfac8ac7dc. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBF079910870.
The City of Prague Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11be8e121091dd3be8678a0721f95a1fed931c24667309427213a8297095cd00. 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/GBAJC9700760.
Preludes, Op. 28: No. 6, Lento assai in B Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f2e516a1ed64ce6a14e061f367b34dddebd64ce8a1be18c40e52b4fa63bc42. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/USRE10601551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6931e409ca8399bc4f7f335bbd3f713e5c57830b022ab358f97c6cd61db0b3cb. 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/USRE12000786.