Sophie Milman (born 1983) is a Russian-born Canadian jazz vocalist. After emigrating from Russia in the early 1990s, Milman, who is Jewish, spent most of her childhood years in Israel where she liste
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 0x81416faa6b12ed55ca8dd6686c3eaa210e715789ab9cfe6446cdbcd19ef7c482. 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/5e2b260a-a3a4-4f34-b446-f3f9eb41a657.json and https://artists.proofprofile.net/proofs/artist/5e2b260a-a3a4-4f34-b446-f3f9eb41a657.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 0x10e41cf2fc9c750462f638a2b2570fb2c05dab41e00d870b1501c4a00f6985b0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/CAL350400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef55add1ff89fe793d28d713cbd38f29b10ef250493b0e8627788919972f6dd. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/CAL350400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e41cf2fc9c750462f638a2b2570fb2c05dab41e00d870b1501c4a00f6985b0. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/CAL350400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f6f8a34278f142986273202b49e8eb3598771723129ca1d41e314d2316f34a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:00:39Z), 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/CAL350400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aee8e7927b5b03140a3c905740f7029643cdf7f5fddadbd7bc0fe23d7be5b3d. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/CAL350400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62dcf4f79b9d29bb2f6c625a6cef2b6430d351c07188690ba56a4b9d970bcfe. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CAL350700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89640832b9974aa7254cdf17a8ba0a54dd7cab5f171a4b28b20acdba5f098b4a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAL350700125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fe8753bca8fd5a6fb2011b66b2e859c31fa172a52ecce35db09d5b4e6a7430. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAL350700126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42530c6d13f94ecfa03e0a0cdccf68dc9c96f0028def8f4a681e54edd9134ada. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/CAL350700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69b0da08782e8ad0f42fe7064f17c1bc560da2179d51e883c72226c1850bbb5. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CAL350700134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63b2c1eaec80ec3f31dd9ef0f16fc1feb7f45630c00643103c7beb2871c0379. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:31:18Z), 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/CAL350700122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62dcf4f79b9d29bb2f6c625a6cef2b6430d351c07188690ba56a4b9d970bcfe. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAL350700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b717a9532c0b386405ac1224aad0889057ff9710694a661feff3bfe8d917d4d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:50:17Z), 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/CAL350700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42530c6d13f94ecfa03e0a0cdccf68dc9c96f0028def8f4a681e54edd9134ada. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/CAL350700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5183466d649a987d5383f713519dc25eb487b41be803acd74f7851ef9e45f4d6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CAL350700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69b0da08782e8ad0f42fe7064f17c1bc560da2179d51e883c72226c1850bbb5. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/CAL350700134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c62dab9d27f06e7aedd04e49f9fd9346bb43714a23deb16c620b6954edd374. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CAL350900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c44c47cd41f8e0adcc9724dbd9790d549efa4f8557924a160a136e7d4ae21ba. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:55:30Z), 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/CAL350900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aa006fbf80f7a52d1e114222f4242a5e7bd70483f50ad4dd0ee49e757365b4. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/CAL350900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff299aac7d4252c0d5efca7b8cb2a5420ea0d77f7e87f8a8471902ba5ebb6fd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CAL350900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0437cde1da35aedd08cc6c4b184a3ce741291b7bca4c4ac2343bbf29e3c40d98. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/CAL350900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6b55381efb8cbb0206656567283bacb5a7790acb8d8f882e59108711ae7eba. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/CAL350900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4521df5f7455e5ff6054ec4a6de0eee72d3ad8bc82264593dd93685fb07315d8. 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/CAL350900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b58784f78575bc2c4e8c2ca31a16701c4a797ea60c36ebb462b8743eaab7c2. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/CAL350900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4766e0e65ee453f60ed7de463a91a85546c2e7320c2298b99771ea55a9835f. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:57:52Z), 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/CAL350900048.
Take Love Easy (Exclusive Amazon Bonus Track Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541e697af276c2b2a6f34da78f32f5faee8bf66b9baa3d1651e3d1bbace8355f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USKO11100840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb4e5d713681e21f242faf517cb176f445b0f6e3f1998c430843508daac1cf9. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USKO11100841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb39533373e6b761293feca6c7ea8805c9ee7a88437e99ad583a6d02c0eb2c57. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USKO11100844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf60e327aa20e474b5b52608f8ad4e4623529b7f083a444c9e25ddefed785d76. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USK011100840.