Esperanza Emily Spalding (born October 18, 1984), sometimes professionally known with the stylized name of esperanza spalding, is an American bassist, singer, songwriter, and composer. Her accolades i
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 0x7d86b6c0417729a3dfb8840e8b7df53f30339fb4867ff8f23638a7f883b49423. 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/d8f4cad1-e2dc-4821-ba8c-d721976dd9ca.json and https://artists.proofprofile.net/proofs/artist/d8f4cad1-e2dc-4821-ba8c-d721976dd9ca.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 0x5897a018b92065c88cadeb753c23225bd04224b8d1dc1edb6500fe87d49dbc10. 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/USHU20814002.
Dorothy Dandridge Eyes (feat. Esperanza Spalding)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aea2fc196cb5d93abbe70b4de12fa029ea1139527dd825806ab840621940f47. 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/USBB41300051.
Um Vento Passou (para Paul Simon) [Feat. Paul Simon]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdb103d3b7ff51a9a4cde68f11a991601b0d32d647ff5f930164a6dcb38c74a. 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/USC4R2442827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778a39a3a2e1d00ee27744d3dcd7d80b37cf4c1296b4df70f69a2610d081e979. 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/USC4R2442818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d7f5ad618331b407b2001991c0342c06cdfcdb23633a6466be3bc030f47026. 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/US29X2200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf695151cbc23eede0b69126ba2660d6f64d91b45371609847ca324aba5b74de9. 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/US29X2200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a11c12281de6e398d8e9ee45a61d5867d81cb859015ed6c24d37c3e2c4a7481. 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/US29X2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489ccbecd4a502c5b134f44a9587a0b7904aaaccba85f164e3511330ba8a3570. 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/US29X2200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4494e99deca3fcb559ca7cb90a538217fabad3be675154ab0055aaaa5084e404. 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/US29X2200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1e2cc2eb65a0b49dc40432bb3657bd157a2af03cb46449302342609af3da8c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US29X2200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4668ba81c30a2d8a11b9424218fed7e3fb3c230dbee5c675babbe6b5fa9271. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US29X2200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5226fc31f8d507d564b9126dd9316d02090e544481aa6dfc650711b75c664a. 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/US29X2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873cf5966b678ebdd284ffd1b8fe27307b54c42f27260cf6e1ef8d3092bdf555. 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/QZR8K2221500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9318c7f964cf59c8c5ff2cbb48ecb54eaebbf20d7f1e83498be4c5210ebf67e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZR8K2221501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36ebf66540d2e9784c5172fe699f9502dfb8f5a054eb66615a6afb2c4c7d2e4. 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/QZR8K2221502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa36189ebb8e998ea29ea6ce12af804f7653cc1c34a0237a8c08642209f762a5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZR8K2221503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436738cf22a5fcb6ed067387d0c3a16386c68cbbe1c9d94cd1021e553334df3d. 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/QZR8K2221504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7abb14c6144833e0f9ef58799db0aa2c3d57de4fad510869e8577f55ef5ffb. 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/OZR8K2221503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc76de37cef19bd8bfe35cd08e8cade60c3a45ce67551aabc4c3ea95a757b4c. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FR9W12206734.
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