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 0x77a612bb4b07d07cb80fe0fde014cf3ad1e955943d629f8bea6c277fd4e8e2ca. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d90abc0-50b7-47f2-8ca1-021c0e63f930.json and https://artists.proofprofile.net/proofs/artist/3d90abc0-50b7-47f2-8ca1-021c0e63f930.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 0x4884de8c5ecd00d8ee8433a988066140b2f3ecc7a53539a6c2fcb0f65bfd7802. 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/UYN161600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92b78f1f4bf2a533fef16e5c42d1ec2128acf50799786187e6066046c0b4e82. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/UYN161600001.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568c9722ef408e54c954a662a35359a2461ba4a5a6d681b8f4fb2d81c7f112fa. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UYN161600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28518ce9fec2ccc973c6210bdb4a4df3d24ac574399b6acc8f5db95035726e4. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/UYN161600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2346312ac7ba2f2111bbc878ac049896181d7e0385c5029123517c56b5a8083. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/UYN161600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477e58458ca43f1f708e8a8ffdb7f633a5264c24a7c5d205547987d70fe1803d. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/UYN161600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26294609fece08db6dfd28c8e060b80902e18b943f6f5f14469e7265e6a43895. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UYN161600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614906a27fc93e579ba32a43fa48d53a1d6ed90d286b34388e7fa4a2b4668392. 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/UYFL32100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497c006d6ce9e2a88fe0a7bd4764a511e8dd8e116b5331301eff73bca2fbefef. 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/UYFL32100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4021b782c02dde7b616374280ae577a3943b1e732e66b1b64740e2484fd7aa. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/UYFL32100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7934c58f3cea8f54f0877e96830aab4d5410e7a20749f56b06c70798eab690. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/UYFL32100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35747ed701cce3f5c57928647cdab86a16b3b782a8ccb0eca5b145300f711a7f. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/UYFL32100005.
El Camino de Siempre (Soundtrack De La Aduana a Nashville)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439fef87d8909da11b93ae06bbc41498183fceaa83333c2c574207a23337b615. 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/UYM122003324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b8274f40c81019b338400cfe33901c0cab444804d5196ab724994ba823b997. 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/UYM122003326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37186f3e07e50ed8ad1702f8723659511b46879811634e9b9ac892d5f2d32d2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/UYM122003329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd464a19181c24c7e5a3cf06152ecffa31bd7e548db91c817a3e6735b56602c5f. 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/UYU142400017.