Elizabeth Noyes Hand (October 11, 1912 – December 24, 1987) was an American singer and actress best known for dubbing two of Debbie Reynolds' numbers in the 1952 film Singin' in the Rain. Today, this
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 0xddece4fb6d4cd8282b86205890243e5f675f728d50df83c9de063664ef1188b0. 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/7e943cbf-98e1-4c11-982b-ae86dc8f5282.json and https://artists.proofprofile.net/proofs/artist/7e943cbf-98e1-4c11-982b-ae86dc8f5282.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Seven Brides For Seven Brothers (Original Motion Picture Soundtrack) [Deluxe Version]
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 0xa04e01edde1cc37d9db4b804c5c0a320958c7280f33ba4f298374cc582376ebb. 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/USNLR1701182.
Julie Andrews Selects Her Favourite Disney Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a0e4d2ad1cab8ab14e37623c311440111f8e94678336ec2f1c5c84f9abfb45. 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/USWD10524278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a0e4d2ad1cab8ab14e37623c311440111f8e94678336ec2f1c5c84f9abfb45. 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/USWD10524278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadeaeaebec4f2282885e765230123b498255db173074939b6c9d1a38e724680d. 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/USNLR1701197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4556e6fd984c545d4cb156ec2827304c1c7df0ed9084e7982cfa48a8442d3ae. 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/USNLR1701198.
Julie Andrews Selects Her Favorite Disney Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a0e4d2ad1cab8ab14e37623c311440111f8e94678336ec2f1c5c84f9abfb45. 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/USWD10524278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a0e4d2ad1cab8ab14e37623c311440111f8e94678336ec2f1c5c84f9abfb45. 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/USWD10524278.
Singin' in the Rain (Original Motion Picture Soundtrack) [Deluxe Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e5166ae76562596ac85e1991d8fa0fa98e84a7e912d1f4e0d3ce39b365f394. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USNLR1200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cd5a330932abd51665f10a1f2a2020215feb13d9b8fd922d336fa94637fb84. 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/USNLR1200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7c9e895f6eb49c0be5ded34fe8a7d36a08e6aba6fb9a3f3b33d6eec5191993. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USNLR1200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92233e07475da5ad70395db2c4390e47afffd92d9aee9010b826cb51017692e3. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DEZZ52171513.
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 0x03fb080de5ca3d1f7638877b0298978cbce09ddedbb8c024d253a48d7cbd2f18. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEZZ42172484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa040eaf3c70bfef49c5fbcb87f4906cab9a2a8a41260fffc07572213fdbd63d9. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEXO52455538.