Oscar Greeley Clendenning Hammerstein II (; July 12, 1895 – August 23, 1960) was an American lyricist, librettist, theatrical producer, and director in musical theater for nearly 40 years. He won e
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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 0x6f76bb82dc4b783fd6ab4d048bb1fcc41cbe2b91aa4df8b909b8e0ba38fbdacf. 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/d97c1269-28d4-4cea-85ba-ca0d9bb89818.json and https://artists.proofprofile.net/proofs/artist/d97c1269-28d4-4cea-85ba-ca0d9bb89818.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Musicality of Rodgers and Hammerstein
The Sound Of Music (Original Soundtrack Recording)
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 0xa5c8435e18e0ec3c05db650502d00fe74f0f3c1ac2ea7fc9e017865d75ab80df. 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/USRC16406208.
Roger Dann/Jean Bayless/Children's Chorus/Palace Theatre Orchestra/Robert Lowe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073bf8c1fb2ae3773ada0ce953ac4376449b880ee8670736e9884af749986013. 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/GBAYE1102021.
Jean Bayless/Children's Chorus/Palace Theatre Orchestra/Robert Lowe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61599cbb9f63c2d4dce46906c79096af0f3fe7b72b876d5a93b763e990824c2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYE9500297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32af8e907547747fe4565ad0c430482ba3d1ef1edd85a714530e89c5d7251870. 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/ES5021702699.
Samuel Ramey/National Philharmonic Orchestra/Peter Matz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea9a2149059355cf8a13a184023126eed507333d7b4baa92b985c1e7589fe36. 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/GBAYC8801332.
You'll Never Walk Alone (From 'Carousel')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcba32f8918923d42059970343e662cd59eba452e0e77bb90cbe43eedfccca6d. 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/GBAYE9500296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f812cd7b5dab6673118cc7d3185eaaacc2e44fea97353d6e372f81d4952aad. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USAR29501154.
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 (2026-07-22T15:41:47Z), 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.
You Are Beautiful - From 'Flower Drum Song'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d5e648628b8e6ad16985550010aa3ba1982c60dac6281bb6f7bb43f6fe62de. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GBAYE6100530.
The Sound of Music (From 'The Sound of Music')
Jean Bayless/Palace Theatre Orchestra/Robert Lowe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9932317e7305f24fbc8c99156423675f24875fa6bde2d7fd3d8f1d3602c303c. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBAYE1102022.
My Favourite Things (From 'The Sound of Music')
Jean Bayless/Constance Shacklock/Palace Theatre Orchestra/Robert Lowe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d06ccacf7cd8e48b2d5cd9ea7edd986de342d6a3f1ed1d645aa8d19a29b59b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBAYE1102023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7026ade12af5dd889b1b1a3c6ff6f975d3e58c152fa383a227cb0b40e27fbd. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/DEU901501324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb3399baf67672ae3131244c84a457c826d8d500bf0a594c7c46a50a98c65f5. 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/QMBZ91672695.
Rogers: South Pacific, Act 1: I'm in love with a wonderful guy (Nellie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ee11504cd85ec441e0d25670969b9e94e7618733283f9d8507487a1ef1e186. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBAYC1302286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371fea5141efff499be186ca9f99c8388060d46a78095dbaa0aadec846e3d125. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBHFE0550231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee2f247f52a2a6cd15f65ccfa2cc9ecc1749c892d723e53abbd27636e75d5ac. 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/UKUZW2001620.
The Sound Of Music - From "The Sound of Music"
The City of Prague Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df962dac7dc1dc0f661e571aca5f32124988a9070c0435b6792e217b18a2da9. 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/GBAJC0404489.