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 0x48475fbebdea7a3068b0db4b5ad62dbcaae84580ce80f85304c95bdcf1ed1c4a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c899d14-c1ed-46bd-a38e-e4859e04671b.json and https://artists.proofprofile.net/proofs/artist/6c899d14-c1ed-46bd-a38e-e4859e04671b.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 0x18c410b06732fb50259685df3e1904dca0061a784d02c250816d586e159c4c92. 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/TCACM1605709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abf4865801d511a7222463c5843fc31b31a30ab3611f2b06b0bd6034ea3d7ea. 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/TCACM1605710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ddf55a8f3b2031691bb5e084381548bbf59cf388a4290ba1cb40fc53c9990f. 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/TCACM1605711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96d394d8e8850bb6c92ad2008216ba9504cef12be9354e492143dcd3578ae2d. 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/TCACM1605712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79ab97a029bb59fcc716cae5993dcfef3d02d8b13a80570a9356f9c9824a9ca. 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/TCACM1605730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe729dddda213c5c5f7e2a842f6d9f4bb16a43f683452a8310479b2e0228bba40. 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/TCACM1605731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d5aa80cdcf2676a69c8a810c288f84d6e784bc324f98d878b03a9a3d72180d. 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/TCACM1605732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692ea73bd5d47242813db76a75067235eb08072cc1be5ce5b2ce5b85cde5eaa9. 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/TCACM1605733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5b9ee664e510c78c03b535149bd4d3c01205aa3a441b98fb7ebc450859519d. 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/TCACM1605735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484a761346f942edc81bf77fb4952a2321063ce8a1415adddbeb0152419bd155. 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/TCACM1605736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d7135236516bd6bcc3833b32e08544b8342e9ccfb7b7d299b8fc8d79ae054b. 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/TCACM1605737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935937350f0d1dc0df629aa9897a5698f6b03d1cbef33f06232860493fbac184. 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/TCACM1605738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf24a694e1dbed56e4b088d9aab6c021155ba4520138e2e986a9fd4a8b8ee27. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:48:31Z), 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/TCAEF1924461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17af01ec28d723b8b91164e03a4eff4cd9ab65dc4f89efebd6b006c8f3966b0. 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/TCAEF1924468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe713f0874e322e9cee84050e941f67d116e6564ca7646cc149a8738b2756a478. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:58:51Z), 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/TCAEF1924469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59571692752c07af793a971be175076debf03ce58cabd7570ba7760d8ea0c2f7. 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/TCAEF1924471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecad7fc33e31e47ffbc663cd32400aa11cbef98d5f352892e542b4750cac63a5. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:19:55Z), 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/TCAEF1924474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb133cebb84d5e859df01b692601c7223c74780090a4ad10e05fb454a35d6763. 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/TCAEF1924477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29e6d77f2cb0e667fe503ced63de53531bcf303512d02e2f7aa4642d0b4a570. 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/TCAEF1924479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedc4a8b6a329b7495c9ff88212e41d0330e4521b79c8bc4651b3e76842b8d03. 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/TCAEF1924483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4ac512c95adcff91878ce5f51c92709beae08c80c08b169749c767a538cec1. 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/TCAEF1924484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3d28e55c9cfa50fbb3ec7435089c2ea8325d008a7cac4a35252d99bc947fb1. 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/TCAEF1924489.
Dime Lo Que Estas Pensando (Guitar Version)