Rebecca Luker (April 17, 1961 – December 23, 2020) was an American actress, singer, and recording artist, noted for her "crystal clear operatic soprano" and for maintaining long runs in Broadway mu
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 0x81f0c1142b52010cd87c96dd766fbf092c74e83e6f166631340d8d2f3db75ba8. 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/86c329ac-1f20-4455-9eb7-c462fffd07dc.json and https://artists.proofprofile.net/proofs/artist/86c329ac-1f20-4455-9eb7-c462fffd07dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anything Goes, Rebecca Luker Sings Cole Porter
How Could I Ever Know (From "The Secret Garden")
The Secret Garden (Original Broadway Cast 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4740d7c6d58688f6a1fe0f6968c91874c2278476f3ce27bc8fa61febf45d58a. 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/USSM10028408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137f296386dd553541c247ba8902ab44d1076b2f8bb8e4b02198c90fe05909a2. 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/USSM10028396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c1af1f28c3d18cdf2afcdad9f78da4123f9951114e28619115fb3d2215a2a4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM10028379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4e1e9db4d9956b6a722484fbe4f85a3ae39930d366a05d7ab831432d022e9b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM10028704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a95e34cc1b3fa7f3c07990db57c35360ae098b1ab4beb04bc59b578ae6d9e7. 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/USSM10028393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7f03ae9200c501cca8f61392d332666c81f320bce9ff6371508995e4f5f58b. 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/USSM10028404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697598b620318a1a3951560553ad1919efa39b9744af1bf0ec8f234832287336. 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/USSM10028476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72ccc1cf82d6a9dc32f81ceaadc6add23d819072cf6a2f4b8fedca9ae9464e3. 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/USSM10028405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7077b5d790a46a35f75205ef3cdff0e149bf6cfb95d01139dce882ccaa86c54. 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/USSM10028409.
The Boys From Syracuse: A Musical Comedy Sensation (1997 Original New York Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ac5085608d3c9d0869a653beb8d9fa7da40b8698661e3edd0936593915a7f1. 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/USC4R2109621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1aba41dc234b64a1186cc0f40350b4f57bd0d10eae3fc0c52833919fdd15cc. 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/USB961331713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74f17e46ccbb4d283896e170fa3a87cbb46855e978b37dbc14abd33f03bb2c4. 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/USB961331707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f3a5484dd60c423141ac4700ee99db5125a1bf84f858afa36f9433f59014ac. 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/USB961331730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9013a77ec1d63d9608d191891402b98e993356f1c7ea68c4ba834ebfe047812e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USC4R2109609.
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 0x8b72ad590f83c670f9c9adea99787ae1503ba80303cfbeb0f20ac26e7960a679. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/USB961331701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c63e67918273693d0a7dea55aa7beae201c7093d76e7e9f5397d7e89c41a08c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USB961331709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c67b6db13dae97af167df2a06b398ec7ae88034042836d7e0d795dbb8f3d40. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USB961331715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086b1a9b9b29d8153156c21798e1a4fbd2f1989d041eb9108ea28a60f40fdc9c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USB961331717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8b0db96bc1544785c4dcba967ae3f463c9046f4c8ca72bb70ba940cfea61e7. 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/USB961331723.