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 0x641ea3e18d1f52af704937eaeab3acb8aefb836a47beb26f991f6c8ba8c5cf70. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8069a6c-37f6-45a2-a483-e8366e4ad44b.json and https://artists.proofprofile.net/proofs/artist/c8069a6c-37f6-45a2-a483-e8366e4ad44b.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 0x638234068c21fa9bd78bc8c6f29f5d132e23b0f23b456821fb7589b1be3d1a1a. 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/DETB32400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46838ff0c0e34e3a117da0c0d2e16fd8816de97d1a2ed55286b8746fec32ac5a. 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/DETB32400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0ea972ac69d0e749b0e24c72ba552f61c7c5a8006bf1fa2b87894f120a976c. 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/DETB32400132.
The Rising and Setting of the Heavenly Bodies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cfbf2a7b6bec82b6ece06157ea0f5e51ae5cc071a2ec2da9aa84e9218f7237. 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/DETB32400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96251f4c99f3be45f1bbb11e9fde9c4455e43a868ae8d84e739bfa8b08d0e93a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DETB32400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0be0aba31434e75d02a899b070c1994ed3b45ee37eb0885918a2c5772bee74c. 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/DETB32400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27d49e9c0a23f1e86471c10f6e2d693583fa5016858a1ac0cfd7c0542d7feef. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DETB32400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94094932526499e2254789b24b72389c2e87875e3328cad1825dd7e0b99d53c1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DETB32400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0617bd42268bb3d89c30668274b7d3c3649451bf3a7a36ee9ce8875a5097dd85. 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/DETB32400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce56fe742a77ac7c6ca005461a6b5cd9595e8f2853fab509b9ca7b81c6b2f2a8. 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/DETB32400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae6347b60c055a1df6804134f6e27e604a2925e7d79973353780780eea7b257. 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/QZS672135758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df20b9ce2b9eb39056dea0e6673a199711dfd6c1c72486d08b23d8e6f98a68c. 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/QZS672131524.