Dorothy Veronica "Dory" Previn (née Langan; October 22, 1925 – February 14, 2012) was an American lyricist, singer-songwriter and poet. During the late 1950s and 1960s, Previn was a lyricist on songs
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 0x5408d8c72cdb32fb2c2cb4cb6ba0126c9dacd11d6ab418e1ef98016cc20864aa. 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/7f68a425-8580-47af-9d1c-5ac2fb40b848.json and https://artists.proofprofile.net/proofs/artist/7f68a425-8580-47af-9d1c-5ac2fb40b848.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 0x05a37a975ab985916af9841ccdfe54d8b4d3301af9d91dff61595b1a7e6b6e06. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USCA20703737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5f42d259d26da6257f736917c93af534bb523266011e9c3db558851507d468. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USCA20703738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227a863e14e72c98a53415ebefb0c36c17c0961d8d667775e1f87fbaed7afead. 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/USCA20703715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4907f235bf9d24e5967962686dc44bc40693f0c5a6994e84f535ac804b28015d. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USCA20703717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dd3c0fcceadd8f3f1675b66ac19cbde466b3e5753d57c1d19ff7e8330b9c45. 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/USCA20703694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4e7dfdfec161b06900e934f0cb6ad9fcf40a305a71ea03745333cb8aabb877. 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/USCA20703688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f4b647ce1377226d613f838afbef55606cc59d41ddb3123121e617a48eeb4e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USCA20703699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4065c27be279458833746f6592978506eb823529cedc6979735b2a1171f1d3e. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/USCA20703698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b42aeed57b3695862e3d6c069239f38a8df48f15c770724d0eea99979573a1e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USCA20703704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca19ba199a2a56e0f8ccf48302acd22cf300714aaa61bf22411ad32c6047a772. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCA20703709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2adc7785ec8a372740d5191541abfff4615205b313e1da2fe26daba2cf3e44. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USCA20703693.
Reflections In A Mud Puddle / Taps Tremors And Time Steps
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf337f5ec774fa12f1b3d3293fc815f813b9dc3edf713843120956da37030ab95. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USWB10700368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c2aeb33605e6e065ceee6976aac5bb4f877df4cf8f7fdaa1a972ebce079a4f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USWB10700369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157994cbe702aba8c3dd68ec5aee8f718594727c5baed8ec2ab79907f20f8f7d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USWB10700373.
We're Children Of Coincidence And Harpo Marx
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292229ced7e20a0a83c3395383c4fbee8e201c68b91f411ea7c54e741db1e0e2. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/USWB10700359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73267850dbf0c9b814acf347e13b91e64bad3cd218a49fb8c04e6bdd329f1c9. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USWB10700360.
In Search Of Mythical Kings (The UA Years)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5f42d259d26da6257f736917c93af534bb523266011e9c3db558851507d468. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USCA20703738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cb599a8a1e364a049f1fdf38f105a62ea404873b3f308e2555d26c09887401. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USCA20703710.
Mythical Kings and Iguanas: The Ultimate Collection
Scared To Be Alone (Live On The Ed Sullivan Show, November 29, 1970)