Jami Sieber is an American cellist, vocalist and composer. She has received several positive reviews for her work. She plays acoustic cello and electric cello. Sieber began to learn the cello at age
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 0xd8c87078dc1638e17a8a63468263ba6232a3c290daab5eccd9228447bb6e7af2. 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/83474b5a-d9c9-4f34-a404-50fd00be1604.json and https://artists.proofprofile.net/proofs/artist/83474b5a-d9c9-4f34-a404-50fd00be1604.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 0x2d3e117786a614a4a90284a243bdaf68bd88dfa070f550f7e01d9d4d18e59597. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USHM80531028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bb047feffe87a6249aab2a9cab66724376f57b569ab2779a5166441e61e3e3. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USHM80531029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4d01a4f308880e999b96f135042d32c0c758012eb3c0e6d3c792b246267501. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHM80531032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf776f9887a4d032c64a72353ca7468748f7346485e614d99c7a03e6c1130763. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USHM80531039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e122a8ec1242471ccb1150dcc2a728d3659fb8f457782bce712457465e8d9b9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:28:28Z), 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/USHM80529518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a958c930d7da250dde055310b41cf74ad1e469233bbc2a2a5c639786604407. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USHM80529519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1bd0723276bb3805fc2bfe50243d68d544877c2ded3cab1b05ec351328cb8f. 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/USHM80529520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef4f8e9bd17910bb8dae619984526bd410eb33d40211657269423ea6bde75d0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/USHM80529521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73102e9525736cde74f3867d7ae666f79fa44a2f30d1eb0e390fd79151b9ea2. 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/USHM80529523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa8d5d38403c9d7394a2027e678c70ef3ea60f2a2ebd8439b3a045631e87bec. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USHM80529524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7499c0222a7af580c14a772f234abdc306703441fb8e349074e04e86da5d0a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USHM80529525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b75cdda6600c9f64e5a0d5493804268ec21f46e356faa7f29845c5d6c4447d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM80529527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776841d4d42fedc74d962320965b199c878949196de428feb16f949d813721f9. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USCGH0816718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf418dbbc1606c27ef76dac49ca5aefdd5c6f5a597417aa3f6c4c4d9c4b44ad. 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/USCGH0816720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55dbfdfe46a8b8ae73a2b905796a05630165185271c5571b620513c07db2aa4. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USCGH0816723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb754f5979d50af6fb2c6d47f0f53959b3a51467347002a716e299c9d9275ae31. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/USCGH0816724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49e8deeb64b6e6d8ad7e51ffaef290e34d4123d63a525b0164e0cd112a75d31. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USCGH0816725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9de9eeaf329a041d15cffadd63b449a59b5d6699138021b067ecf503f0e87f. 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/USCGH0816728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea8034989560ae5e46db7c3c9524868f75c19b08d4a1abe5351d201992e1d91. 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/QMGKT1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cea8627b5721f998dcff8277441ac4bdebdd37523990a2727a20db59559d62. 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/QMGKT1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de856b4f2afd1d6d00eb77c238f1e937768321a2ceef4b5978cf77e0abebf26. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QMGKT1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4902b6f3359827d336410db0051ba3a3a913d065dc9087cd3f0619b313bdc019. 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/QMGKT1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c2861b753a827354f778d18b9793f1d4358993e8ebd5e58f52726ec95a1d24. 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/QMGKT1300011.
Dorothea Lange: Grab a Hunk of Lightening (Original Soundtrack)
Big Joy: The Adventures of James Broughton (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6636c550be2860c79417185febee89fc49317acb9569ecade7ba53b8a9132577. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:08:45Z), 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/QMGKT1400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5960f8f9b844b9a64270b9ed650858b3b3094f74c135624c1e4995217c7421. 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/USL4Q2208097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f55dbe304342e5c07c166e5e53af103aafaf41843f66648a0947dfa1a31f51c. 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/QMAAK1568435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e0fc8f559bee1d32c7fa3c9a3cf869bfc768b028917e43f579f40ee6da2f6b. 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/QMAAK1568439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dbaf2bf140235c3b6bb44ee4bd4382eea9d94e0558fbb0219768b7d9a3466e. 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/QMQTX2300003.