Judy Roberts (born October 3, 1942) is a jazz pianist, singer, composer and arranger based in Chicago, IL. She released 15 albums during the period from 1979 to 2011. The Chicago Tribune has called he
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 0xff3eca3abaaa9a12289f39baa51adf153eaa392730f0472de020d2ed032f7a19. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c59e523-f014-467c-b2c8-69437d9810b1.json and https://artists.proofprofile.net/proofs/artist/3c59e523-f014-467c-b2c8-69437d9810b1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1192fbd3734e4c44564046595b4f6d9514b07b9946d2f73ad17132567547f4. 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/USMCE0800216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7a4e407579829436bce2b0be8fdeeeb818110d13de3a8f7e0081a1fe0e8e17. 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/USMCE0800217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896cdeff75f297d3b440e71690874eb4a4a47daa950e99156cdbec78672f5e9d. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/USMCE0800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae9e73ec6f0780338faf85d21fddca6ab74d2725f3c155608f58170a53fe8e6. 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/USMCE0800223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926049953ab15dcac10ef2d6bd3fa54b636c08460f34be580e2dee3f08628150. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USMCE0800218.
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 0x887267ebc126a1a7795d72aa8adc3a2ecff5e0600779533c9f7d82666ed286fe. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USMCE0800221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042d9487075d7c5412ef54b570bc89772714c3b4b43110fdd2904f9320996b01. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USMCE0800224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2520f2c097e276208738a953e21c939be668d25b2209e054b75b201d760e0a. 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/USMCE0800192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45a80c4c7d7a8dab689e76840a428067de2dc80badb712fdeb9e6ec36b08842. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:37:09Z), 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/USMCE0800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446b22f8bc4295c229a58479f2ffd81da5c916f651825ea7209501bc41fe46e6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USMCE0800194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52907c8e2b4b0ada1bb3be58149f85882f65948fd4a037a3316f0cdfdf204b81. 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/USMCE0800195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8722ed4ed6dfdbca85be69ac3ff76330a8b4d3e5f15c9798498a9bc8021905ea. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USMCE0800197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b690b58a28ecc2d7db9a2b6f94cc1e9d7e045fd32e73812e9710d4aced2a9b. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USMCE0800199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d8d29268e9448da33e8c18ff6a6d441966cb399d59218413bbadc2ad42dded. 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/USMCE0800254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa12585d5ac84ac1a670a200adcb7e60f44bf817e34400e4a1ca3afc94c1ffd. 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/USMCE0800255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f52e32fc106a28dc5907ff2e59d4512df894bf209402c27cea8f3738d9abad. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMCE0800257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206efda6fcb3817ea1334bb0a61000763f30d13064b928e1e7cb7000d4f2de55. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMCE0800258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda53b92b5bc9509262f64c118fecea29806639c89a5661494715eeb92d473cf4. 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/USMCE0800259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f6a96f10fb680c9bfc630c022b17a369d855ab75ec554d5b0310a3b00b44b3. 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/USMCE0800263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235b464a25664bd4a5c478c2cbabfa079df399340a2981ba025c6faaa33ec640. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USMCE0800256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acddc36e2fc21b36333f2464864d66120341d4f93c6fe2d2a0dbfb86c17227f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USMCE0800261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c47698c92bf4c554588c6e49cc6a854d8bcb38f39e10c607688eac3deb32e8. 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/QMG2N1300002.