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 0x858a71214455d5ac68354310c0ad1c2213564a1cf10feeb9887916bae1e47a0f. 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/256094aa-90f0-46cd-9c9e-3f9b5219a95d.json and https://artists.proofprofile.net/proofs/artist/256094aa-90f0-46cd-9c9e-3f9b5219a95d.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 0xaeb21f812d8fe1b882a063feded72f96ceed56b170dab41311c2d0f2af6736ec. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USTCZ0943595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd796f5e35da9b7088b08e0324c15e35def3ba6728106ebb4aab6af3172ab85b3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USTCZ0943602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b3997742b9daa972e26eb9c6e8eba1aa03594c305d514eba657391f26efd8f. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:11:16Z), 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/USTCZ0943604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23389c53c11e25ebdc5b6392438b7c58816bb96bb014a79e5422fcd73bfde27b. 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/USTCZ0943605.
Gunmetal Black Dress (Alternate Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa961b6e8e8f2d45ed8e23ee20764a9f4c95668fdf6f35c282e8b009fb08ad6. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/TCAHM2338795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761dc5a340e4bd63c2305e7cc93fd3ad6c35909715e271d7a64fd71ac9dcabfc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCABJ1259495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261e391569cecf5880f217c4414e0986a207642806b7855c886bcb30a282ec5b. 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/TCABF1282502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a7c2285af4e886c8398ec3b9e1bc2ed88fb7a4b0cd528001809271e9852f74. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZWFL2300741.
Set The Controls For The Heart Of The Sun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf900758578f3874d3a59a234d7f5b8c69950f0550f5ea5612f179e6dec2d4b4c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:09:57Z), 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/TCABG1224215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806775cbbb8ac4ccfb68391418936e9fc3c3584b499149f757b0b8cb99676f1e. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:29:49Z), 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/TCAEW2091453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb083d5db59aeba1cb2a9813458a6cbce394630a1f30792f7569c3c8f3257ab. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USTCD1069901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba47ddf5b25e416dfc43ce79be0beef9cee779c3a9023850e24f7b60fc179d24. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USTCD1069900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d6bd0bae36f732246e353d084d597ba78072a1141ca39037a2e1ce4e7ad6ed. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/USTCD1069903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9123f8ed7f57b8219682fa22abdfe0a75d468633c1bb2d5f058c966201dbc59. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USTCD1069904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc63eb553c89d749628e0419a9c7ad681aae14f3b70a98469787458662780c91. 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/TCABA1137255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab724662d8298ad8bbf37db67b5468a2eaf55c0ade1ed47cfc02cfdd5e74a4d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USTCD1070391.