1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x14f628cbc6795a33a1d0de0acfa694f83b5c5e1be87f0206d880f020627dfe2c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61e84c70-5dcd-4c65-9271-d4020190b734.json and https://artists.proofprofile.net/proofs/artist/61e84c70-5dcd-4c65-9271-d4020190b734.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 → block OTSBitcoinBlock must exist at that height 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 0x6b58f5230a914921f95303f45b5d5baf97e7f835169d5ddbe9236d902320778b. 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/GBSMU9061621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11439ce6879c192db2294ac154ee1423d987b22b5a592d6966a5be2e826d1aec. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBSMU9061623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09859e447bad3b5e03c37b1e1710a0116765804f0f75676605fc1f8f36ee2b99. 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/GBSMU9061625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2555dfceb2f012be5f7299279db34bb85e398554ef343d0dcdee6b3391468e. 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/GBSMU9061626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fed045f2164830f4688e3a64e2f2da29b93335fdfc585df4a4d909a85ffb2c. 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/GBSMU9061628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a59d628c9425dc68919979bed3abc9d519963886d148ac68686ad0a59eb8b9. 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/GBSMU9061629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2a2bfe2e16e5613fa84ca1644faf87faba6b61248e4053d8274d539b011f84. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GX8KD2234114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1513e0bdd337226139dfa77b922d7b90063a0ce76c7982e48d5a5f73bc5903. 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/GX8KD2234117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67071759ebd67409c50118bd57b0b9dd7d668fda755adc01b3c030befec9b435. 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/GX8KD2234118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f9c09355f80aa1d7728b65579702a20752b816648340439e4dcd24419a6896. 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/GBSMU9199060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6d38313a05cb0c360fee273d8c841d9335771cb360f2065fa993067ad8618f. 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/GBSMU9199061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2662b746575b76e76d1c89e38b14195750b2d4937d40c648dcf64a0a8b32bdd3. 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/GBSMU9199063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b2e5b4c927837be87d93ed4446f389a71d650ace39e6fce740ebe0097e60b1. 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/GBSMU9199064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b458d7e79165e4ffc37b29c35f451c6cfaa30d68e59956f96b58ce88204b3b6. 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/GX5MY2488560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b49f1a3fbf33a6f65ef38b49b506085a0c0612de9c9e5499691bfa683853f7b. 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/GX5MY2418112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a1c6b16f3a19ff5a5c4e6b620f7b63a39c3f2ea7ec86b049863f23093e3f3e. 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/GX8KD2213605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85de0c9adbe94c5cf6383fe1c7a194aaca6af459b2bd5f2832bd4c896dbdafa. 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/GBSMU9199121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6da88b491530d4d7451c36eded72318fc43a9798f4e8f00d1e52ea41b5af54a. 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/GBSMU9199123.