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 0x46ee18fbb35daab75bff4552ead58e98b76b4f3df1d15851dfd201d9768f2385. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c651d6d3-b38e-495b-bac8-66b2ad4de768.json and https://artists.proofprofile.net/proofs/artist/c651d6d3-b38e-495b-bac8-66b2ad4de768.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 0x7145fdd02be2bd3d27ef832261d93c410380fab4b44fc8b73ede108d72940f92. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/COF011403459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf49914425b4537ebee3090e4d7035c4c47e485afadc6cbe85784193484da4de. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/COF011403462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849079d184aadf2db5aaa7cdfef72b2d0ad630a90fd1ee065ff825f79654ff4f. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/COF011403463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5699375e081e347bf6821c5033dcc1c1611c58cb59da3b16637bdeb5eb3d1057. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/COF011403466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99584a3abfaeea9ee5a512fdeeaa19fec92b3903eabed6fcc65f4dbb80b1de29. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/COF011403467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6fd5968a3e33c2dce90f7c2b609bac466018339373d7736e06c08774e269ba. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:40:50Z), 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/COF011403470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440a1612cc74c909dbfb9cd07a6363a43b91a7bac250a704e1212abc479ffd34. 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/COF011403473.
A Bailar Pachanga / Pachanga Con la Playa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436708635baa3da0790507f8041a4eaffa8948997198d123366f540e1f0a889f. 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/COF011403474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063703f153c9ec2597ff2933613702748f0c25327757e25189f332e6feb2ae8a. 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/COF011403477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53402e77913ba1ae9ef90908bc219cf67a5f66c011aff868a485aabf4f6dd2aa. 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/COF011403500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83a048787a24cf8ef1e8928b8c32ffe9491f04f1228ab5aa493b4b836d8637d. 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/COF011500144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb093511c1128addaae92e47bcbcea8c949021a33574f680abc9a2bcae506c17f. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:18:40Z), 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/COF011500143.