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 0xf8c0eb78592273213de4550ba3cd369bfc3ba590d16c7b279cda075b9d60b3e1. 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/035f9055-a68c-4274-aa12-2a9791534175.json and https://artists.proofprofile.net/proofs/artist/035f9055-a68c-4274-aa12-2a9791534175.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 0x8d9e2c3416751f85cdf980020b290dfb6c92f59e532814ffd774ea52b0f67d84. 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/GBSMU0023871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbc218ffdab20bd6f50b99d160e3b5817da5bc5af2363d3aed542e26dbd678f. 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/GBSMU0023870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19f43aaf225453f1bb9263db4ffa45c9b141306a785aa8b7a2453e3ff2437da. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU0023873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecebcff6d191be6ac99374e7c10a8d19ed5e1134de15033bd8b084f42cc92d41. 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/GBSMU0023875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff293e697a1da537e4922d4831a735337ce8b0cbcaf43ba9ae41c1d19e8eb31. 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/GBSMU0023884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6bb0d85f4c9fff8339507fb5b6302e10ac2c42e5c3b7e44a673468b276080a. 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/GBSMU0023877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb25c2dac3ff30d1996d82ae1b7fc80b3fa99209734db1357e0e24cd57803d1. 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/ESA011890245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f823297c31d28ae47b71c1f8302a53db199102080f432846768e8dd8697d381. 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/ESA011890249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e47d565cf4ae3dc52aa9eefbc8dd43b4a8f6c843ae0d7097ff6e033500c023. 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/ESA011890251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b62050759041ea880b758395b10016d10241cfff37f1ba254f513ebff3b4d7f. 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/ESA011890252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30bcae636412f69b1d60a16f6bb7a659bcfc0cd1075ed8b83fef9fc718a5f37. 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/ES5301253125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3d2d27230962f85824ebd6989867dc3f6445411e62f8a167983b8768ed0c1a. 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/ES5301253127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9ba2f88ad66ae39026cd27daaead11cca64f2b81d5910815decc7208d12e3f. 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/ES5301253128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01c9940d405899feedf39528034d1314c788d2b42fc800bf23d441174d3a7fc. 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/ESA092307127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84408157af6dc03bd78b4b178c70c29b30e37901e256e06ee40bb48335e663a6. 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/ESA092307128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fc9e518b0be3d346cbc4a1c367479564f67eadfee10129460f4d20e8449bc1. 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/ESA092307129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff2b8053265c2060ed2ccedb423458136555d92f0d92d1e71d45ac94c75d17b. 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/ESA092307133.