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 0xd478e1c09d06ef86073ab935039e48dd65cc0d5a7a7e23abda5fac76d18e0ba6. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8771931e-60c0-45c3-a514-fef83c74e677.json and https://artists.proofprofile.net/proofs/artist/8771931e-60c0-45c3-a514-fef83c74e677.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 0x33a8450af1ff504f97d1dd46dca9b98e7fb97b8b8df33b29abd0af3654cf1422. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLNM32205009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac0ec5487705d6ac50672b25386f7e388fc60ab453e8da3323dc207bb2dea6f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLNM32205003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc1e5b4af7afd5e92a2c45d861c1b5ad47c3190ff169e81fcd92aef06d23ba8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLNM32205001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9727a2461829a833555cdd21622b0c5210392721cccd73db81e5694b435e3576. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLNM32205005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d880f13abad9624a273e2e7f6d0b21104b55661d92263412fc771562a857ba6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLNM32205008.
Living In The Moment - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a2a8491d3f34ca7a75389569d59e60ba72aec93f6096902b2ad14042a2c631. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLNM32205010.
It Doesn't Matter - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7e4f57921285994ca3c939371951ae13061b883553ff41241d1e4f07e10710. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLNM32205002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fac0f50fc755218c2a0003e13ec466f5b8edc014f20045d6a676902b5dee4c2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLNM32205006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9727a2461829a833555cdd21622b0c5210392721cccd73db81e5694b435e3576. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLNM32205005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac0ec5487705d6ac50672b25386f7e388fc60ab453e8da3323dc207bb2dea6f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLNM32205003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc1e5b4af7afd5e92a2c45d861c1b5ad47c3190ff169e81fcd92aef06d23ba8. 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/NLNM32205001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d880f13abad9624a273e2e7f6d0b21104b55661d92263412fc771562a857ba6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLNM32205008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a8450af1ff504f97d1dd46dca9b98e7fb97b8b8df33b29abd0af3654cf1422. 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/NLNM32205009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc1e5b4af7afd5e92a2c45d861c1b5ad47c3190ff169e81fcd92aef06d23ba8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLNM32205001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac0ec5487705d6ac50672b25386f7e388fc60ab453e8da3323dc207bb2dea6f. 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/NLNM32205003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d880f13abad9624a273e2e7f6d0b21104b55661d92263412fc771562a857ba6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLNM32205008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a8450af1ff504f97d1dd46dca9b98e7fb97b8b8df33b29abd0af3654cf1422. 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/NLNM32205009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac0ec5487705d6ac50672b25386f7e388fc60ab453e8da3323dc207bb2dea6f. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLNM32205003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc1e5b4af7afd5e92a2c45d861c1b5ad47c3190ff169e81fcd92aef06d23ba8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLNM32205001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9727a2461829a833555cdd21622b0c5210392721cccd73db81e5694b435e3576. 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/NLNM32205005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d880f13abad9624a273e2e7f6d0b21104b55661d92263412fc771562a857ba6. 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/NLNM32205008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a8450af1ff504f97d1dd46dca9b98e7fb97b8b8df33b29abd0af3654cf1422. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/NLNM32205009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d880f13abad9624a273e2e7f6d0b21104b55661d92263412fc771562a857ba6. 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/NLNM32205008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac0ec5487705d6ac50672b25386f7e388fc60ab453e8da3323dc207bb2dea6f. 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/NLNM32205003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc1e5b4af7afd5e92a2c45d861c1b5ad47c3190ff169e81fcd92aef06d23ba8. 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/NLNM32205001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a8450af1ff504f97d1dd46dca9b98e7fb97b8b8df33b29abd0af3654cf1422. 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/NLNM32205009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac0ec5487705d6ac50672b25386f7e388fc60ab453e8da3323dc207bb2dea6f. 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/NLNM32205003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc1e5b4af7afd5e92a2c45d861c1b5ad47c3190ff169e81fcd92aef06d23ba8. 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/NLNM32205001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9727a2461829a833555cdd21622b0c5210392721cccd73db81e5694b435e3576. 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/NLNM32205005.