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 0x8727e011842a85807e831d39435094e85ba933ed1067bfa2e125b8d3e65a4b0e. 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/f6478bcc-cc16-4e2c-a560-39f140a46d73.json and https://artists.proofprofile.net/proofs/artist/f6478bcc-cc16-4e2c-a560-39f140a46d73.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 0x06844774c0b1fb5f084e97671c494136d4083c20f79d77b8a3f3173e0dfa639f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GX89G2551882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2ffc092827532e41cf3c78c099f3759a3c04bfdd94b02dd1ef33fac20f63bc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX89G2516393.
CAN'T GET YOU OUTTA MY HEAD (TECHNO) - SLOWED
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa514b7c7160faadd9a475e28f0d815c0f587d165050860c38efd10e5d44902e. 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/QZPEW2517060.
CAN'T GET YOU OUTTA MY HEAD (TECHNO) - SPED UP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bf31ec73348332a6d191d258bc36d540484ba9573835c45c66a4daec666ced. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZPEW2517061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dda6908055205e253cd72681493497f570987b8591d8677820aba36da37055. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:39:35Z), 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/GX89G2538648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4d47cf6cd315b9bf5e11d67eccd46f27ecd54a10d9f0dd9654f9360e3d9016. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/GX89G2563276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc81d722fbb6430423b461bd82978108d9b06d0b9237ff624a88c8bb69e1c725. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:40:24Z), 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/GX89G2515805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306283558aa5a11ac271ec357873f63ae786cfe256ba8daa2e07ac083034a5fa. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX89G2591243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307b1f8cdbafecc90cca5dd5dc6d2ea663e805356b2bf3721929c21057cea4b0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:15:21Z), 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/GX89G2582369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e0d53f13dd9e3131be476d9ee8e3204d2c406db6a0f7afabe9a20112de4857. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GX89G2585323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a34af134bb444a20f017a065fae82304228b56c130dffdc05838fa1ad921460. 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/GX8KD2552174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6037b1bfa946153fdb82d9e53de2ede9860f03633a727896b04d4962776a8b47. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GX8KD2565201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa075a193d2dc2af4d39ff8d58bac55a0ce486efe42962bab6dd6b3e7014d854. 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/GX8KD2543886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46df51a351527284279b291056658121b2bf5a6a215789ae179170e6a13c103. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GX8KD2502215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a6ae6ef6f6d3cb24d1b17674ec2f8595da88398b7b04c6fd1e8e3cca85c97c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GX8KD2528775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32856b3cb052d6f256b5868c987da4e9c2a1412038aa9710d0b149db39beda5e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GX8KD2576552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4cd5a0b21699a54a6e9fae58607f7982bbfb604097d8af4dd31e7fe0673dd2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:19:56Z), 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/GX8LD2510040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948a1cb3faa640aea0bb534953af41133ee164020e8fd29cb186764058956e4f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:11:17Z), 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/GX8LD2567334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f40f2a879d3bc5335e14ed420b0386f679b901f11a864ad0a3aaf3f5e1f5e2. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GX8LD2575587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732fe44be394c80adf4e66aadf53116d01817185079adcd2f125b5ea3fb191d2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX38U2540117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffcb81283012401252b4bfa450fe742b56208b98cd5e31b8d30a78074b77df6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GX3HH2586938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b992a3629c5f865867b8ec07210e37a8a2243566ee6c4f501ae05a670ec0710. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:03:31Z), 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/GX38U2546676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32327689042139bfc982c33ee6b5bf73e4dfb12fbb2733b42e6660b370269b6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:51:12Z), 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/GX38U2548435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1e24e9748749f1b88999d0f1d3bae980791edc7c4b12e1155e6e84036ff1ae. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QT4K52512782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ace6a2f7b4ce5f3be1fb2471f02699ad828414afd036f2ce54c3e2f68d5d60. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GX5MX2583983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646c6c002749662a8938607a939d3f82f4dc00e4bb4b72e1b449678cfa026754. 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/GX4R52583547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2516066bde4f307298ff3932d28a1ae25cb58780af748fc73fa09f60a26011. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/GX5MX2540001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de46bfdb1d8eb015e6c91b0e9eb9698a9b5860ed78b2ab7c9b2a4dde6d083ca. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GXF972538260.