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 0xa8264bf5eb428cac631d4896e7807766f2c1f462d38ff58ebcfe9c6bfe6b0d42. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ab08ee8-4cbe-4681-927e-b6076eaffaea.json and https://artists.proofprofile.net/proofs/artist/8ab08ee8-4cbe-4681-927e-b6076eaffaea.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 0x6b16627486c0dced460bee0ef217ff541d5f3f53bc4094d40a8eb1d35ae73a56. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/VNA0F1797890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c6c47337c55047cdd2bdec28a7c17f7d93ba924df588da4d45b514a57192b3. 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/VNA0F2011246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c7d856488b5f85807109109148dfb474b87b1c4f307b804e2233e277824960. 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/VNA0F2011247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadce39b9f95c42b06001d4d3ab8c84540ee723468b3715bcbe88c3bb246079c. 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/VNA0F2011248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2e6b1fdb1df3ab8a178bf849be85a7c42af76ca701ef8e91e78713d4ede434. 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/VNA0F2011249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05faccae3ed8115ecbb8aa60ee491c6101e7c2d41b26d7fa81428a37918b9f8a. 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/VNA0F2011252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d58c7c54c693c30ae5989ef56369da3d180cd849cea6549da5a749a4abfd11. 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/VNA0F2011255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76a02e8a5595432d40e1e683d3302a8ba413bf2d69d3d209cccfe4332faa51c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/VNA0F2011257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb98ef98f530794cef38ade94c80982c0f951ceeaf97b9e2c8aa6ac949a1bbe. 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/VNA0F2011258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccda4b18ecb86c271e89ace6c23458640da0453b2d644007a08ba08066b51f2. 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/VNA0F2011262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be3fa10250b45e93f6981aaefd5825fba419904b29d46594de9257f1ec42c5a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/VNA0F2011229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d14a85b29d980a7f2b19467f28cf4fe097f1397b11b6cb954faafdf58d584f4. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/VNA0F2011237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b676ea946a8250e9431f3c7974b3a7df604be9c1ecfa77340aa9092f8a6fb93. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/VNA0F2108744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb934e8f3848225ca576634af087f5657c9f8546ab7390c8c41b7b55dd3a30f3c. 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/VNA0F2108745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e0df330e88e83d22e42d9adafb724581ee4ad19b3cbedf579856609aa42d7c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/VNA0F2108750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67336ae7f34e81a3423b2d11af62d628fc97be563db1887018b26255e9ac3118. 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/VNA0F2108759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b43696084fb295d6bf7f76ee79bd1a35efae7628abbec4fc1f0c3e6fa3d7f6. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/VNA0F2302285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa758d4cf724b562ad701469ae707067787e6ccef86e345f0729e8083eaae2eef. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/VNA0F2302291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50476acfc661d51fc2a219e4f8c531ecab4044ef46592f7ada301186e14d335. 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/VNA0F2302292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ada58940e8aa3ecc5ce2bac2de9a008f08292f0ebd1eddad4ea95be9fc2fb9. 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/QM6P42411416.