Joseph Buloff (December 6, 1899 – February 27, 1985) was a Jewish actor and director known for his work in Broadway and Yiddish theatre. He received the Itzik Manger Prize for contributions to Yiddish
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 0xf75e967f0177733e90831384211d675aad3edf19542d5dacfbcc43f08b6c597d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c977deb1-02be-46ff-899c-981984409c02.json and https://artists.proofprofile.net/proofs/artist/c977deb1-02be-46ff-899c-981984409c02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Hollywood Classics, Vol. 24: Silk Stockings & The Band Wagon – The Complete Soundtracks (feat. Fred Astaire) [Remastered 2016]
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 0xd81192e70043f87a22820eee31bb246bb9eb3d2e5fc64bae6f7b1fa4911114e3. 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/DEL111600698.
Oh, What a Beautiful Mornin': Overture (from "Oklahoma!")
Rodgers: Oklahoma! (Original Broadway Cast) (1943)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe862fc746958f1c9f4f78982bbf138d1ea996aeffd3af057f29062cbad523f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HKI190445601.
Oklahoma!: The Surrey with the Fringe on Top (Original Broadway Cast)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ebc00af7980f7f5b8382ea4f4182d2a0b1d87a790b9536cbae2d849607087b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKI190445603.
Oh, What a Beautiful Mornin': Many a New Day (Laurey, Girl Chorus) [from "Oklahoma!"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7e40204bcd48f0c31efeacef1999f8e860d8e156e534e3c86352b0b8b58e86. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HKI190445606.
Oh, What a Beautiful Mornin': It's a Scandal (Ali, Chorus) [from "Oklahoma!"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ab9204275418d0123efc9930b0e1b487ac1a958390e1b352652e97ec37bbbf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKI190445607.
Paris Loves Lovers (From "Silk Stockings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67adbd98b51f2881a15a4498bdc6678222e1d21d579d494fae7815a11326b747. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEL111600689.
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 0xcdccbc5c1e0ee0eaccfa11b8b94e67c4fb4fc9c3116e79c839a714eba340b638. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEL111600688.
Stereophonic Sound (From "Silk Stockings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa925ad6b282702d13e30c909554e3515a1782b20ef8e5e8b49ec88d211f1f47. 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/DEL111600690.
It's a Chemical Reaction, That's All and All of You (From "Silk Stockings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1cdb419083f62d424e8a4308d02d2a4b927ee0c9224b38ca1c2cabae188b52. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEL111600691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc503029aa73befbb5ba9aeb354218de97d94454a167acd50ff4e7d1655dc13. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEL111600692.
Fated to Be Mated (From "Silk Stockings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778fa952a5e0f7579284fc87f1f9364a8be6f9a099bc301fd6707d12fa10ec72. 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/DEL111600695.
Oh, What a Beautiful Mornin' (From "Oklahoma!")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677b5d84e6899c0ed4ac937c4aecba2f8fa05971af2701adcad0c43de46f2e49. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/HKI190445602.
Oh, What a Beautiful Mornin': Kansas City (Will, Male Chorus) [from "Oklahoma!"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a426b144a2e068fc33fcc08cabf22f8908b219e9046abfe01a799fed982941b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/HKI190445604.
Oh, What a Beautiful Mornin': I Cain't Say No (Ado Annie) [from "Oklahoma!"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9c62218ba155fdfa8688200bcaf4eda2b1857453db225e99a66356c610a43c. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/HKI190445605.