Cassandra Jenkins (born 1984) is an American singer-songwriter from New York City. Early life and education Cassandra Jenkins was born into a musical New York family. Her parents played on cruise shi
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 0x4d2fa04a94fd482d647e7412b380375201ffdde078738852fafab53ded25acea. 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/6f898f0a-9c88-4c43-a0b0-43c70cdbf73c.json and https://artists.proofprofile.net/proofs/artist/6f898f0a-9c88-4c43-a0b0-43c70cdbf73c.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 0x6ea91212a5a5b78cc93a2e9961c134830837f4ab3c39cba08583ee8931abb737. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCABX1450815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63082b799d4c4c3f0447172d638305e41a60da5db81ae25e4fcd51245a907393. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USQY51354007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b62b882b9abe46c63b7f61845fa065a3bb6e003b71eb265f6b9e0d591b1245. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USQY51354009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb712eeb057d81f396b13bdd590bcd469f09af6c9079c483ef748a0a771c8a8a7. 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/USQY51354011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182d77a2d0abf9a770aa3d6d50abca61e31c35fe31ab8ed52b2cf93aa8490389. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM24S1700460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a6e63959290a717721a276a33b061682feafffd4f27acb7a098750377d0294. 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/QM24S1700463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91aa53ee1695bfe9a824ff7d5413f62aedf5de9c024a6ba3e5843c15167ce82f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QM24S1700464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28fb062f9af931a028f2ba23f6080b0b2b6cb530ecf9000913759b0116e3838. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM24S1700467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf365734c814db97b54632004915225577b7ee51f51c9706bcfc54bec09f6e201. 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/QM24S1700468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ff60caf538bf5b809703c44d31e449a9fab9e3d1cf2fd2a474adfb90254eaf. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:30:30Z), 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/QM99V1801501.
(An Overview on) An Overview on Phenomenal Nature
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403a6ff6a30b99311cccafcb24bc26eb73a3d0913e41766d9d95a5f49cff2aeb. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:55:33Z), 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/USCPT2117105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe119a46311227f92f057b431d15e27cfa5469b003a7cc77187bbd0f033a5fd21. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USCPT2117107.
(An Overview On) An Overview On Phenomenal Nature
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6577020f2d63c4c61d2f5a1a21bf7a21da22dae748d19870e7b34069379cfb. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:33:36Z), 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/USCPT2117101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfe7edbe85ce00a5759a5109c015dbc87a9397e7aa841182bdb5fd579c1db21. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:22:45Z), 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/USCPT2117102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403a6ff6a30b99311cccafcb24bc26eb73a3d0913e41766d9d95a5f49cff2aeb. 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/USCPT2117105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe119a46311227f92f057b431d15e27cfa5469b003a7cc77187bbd0f033a5fd21. 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/USCPT2117107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a44ef1fc80cbd18d16ca369dbe72c7459db1d8ec645ed0ca15048894edfb2b3. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/US38W2140023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7edd61e8ade40114d23ed2ee163571150396ea8c09aafb900c5a3e8837e91f7. 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/USA2B2404197.
For the Birds: The Birdsong Project, Vol. IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4642587ae5e1daa15661d228d6103276f15d291e4429ee654089c0404b5cf9. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QM6N22287140.