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 0xb8df4b5669681f94ff4c8d7149b23f9a2acb7e6a54fbe03b33ebf619ad9d6bc3. 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/0ba7328b-a830-43a6-aeac-25d26f091c50.json and https://artists.proofprofile.net/proofs/artist/0ba7328b-a830-43a6-aeac-25d26f091c50.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 0x559ebda62175743cccb1d634c8b04e85f4ca8c0ae3f660f5a33455b00f76c168. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CI2DY1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3b5bebfa4566fa3f6b86dea6661cd3cbd8206e9209750dbb566aa8968800db. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CI2DY1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3369ab1c3f84b18412ff39ac8a52bd5743c7695f86229b8a35a7fa34ce94ba. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:31:35Z), 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/CI2DY2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564444e829477071b8962d27c749e43f57516da20e07948323993f46bcb4c411. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CI2DY2000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8812fa6000eb59bb39c21776d04e0c8f6507eebf0a029c3b3c6f6f0e0f72794e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CI2DY2100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dd391c5def80e1a7a58687d9408557eb85c320144b51e30c2256295bae9d91. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CI2DY2100268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c436f539f5dae9ea2424d860597c5a09a0f73dc211239452c01ec98f0116f57. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FR7PE2200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57e536908be29f3987de932f102ca737c1bc08f2c5c0d711025bd8cfb5be5c4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR0Z50090820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4801f7e47e1cdc4e20700cecb498f89f73e3bbd914ebad541fae1c6914bdb933. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T07:59:09Z), 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/FR0Z50095971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fec7e4b50b3d3b1ec2a5424fcd964ef8c285872e935594faeb323c82094b094. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:01Z), 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/FR0Z50108876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4108ed30de8eed00af07d11ce3ff040f31e6392fd7380269668bec39c196879. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR0Z50108867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f575ffce85676ae8d0af7babeb1963070489346362a6e18e0b1e19e540f3bec. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FR0Z50108873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3846ed89acf594a071e64173b296c3d6dc524c0107775c9dd3073ed59d6d9813. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR0Z50109347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23d49884455abc4260a057d195b13c69808009affdab7ee09e71efc2d61d321. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:37:10Z), 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/FR0Z50109638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47553902f0af0e07a502d1adf48c5af4eab8632958dace7c88528e18863eeff. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:19:00Z), 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/FR0Z50110787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fac47c8367d1accb3a14f16a4a21ac5eca80e74bc0375408ba56111f84de96. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR0Z50111759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4cc14313794012a6e635f97d5939dea758f8bd240eb8bd83d9e06e49c4a168. 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/FR0Z50116024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6216c8ec99f9cdc01a3743797779296bf75995d8f602d0c66b970ab9340f54. 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/FR0Z50116025.