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 0x5038be7639e432f64bd2ac1169636bf71c39688ce4cad2d1428810a8bb7484e7. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46d09dfb-da3e-441a-a4bf-a666a460a2ac.json and https://artists.proofprofile.net/proofs/artist/46d09dfb-da3e-441a-a4bf-a666a460a2ac.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 0x6ffbd82400768ed840ce8eb0059146d1b0f1ec8635e94e3a162f35cbf632f1b4. 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/BGA472329276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275c5638ac97b9ca82dc8ca9558b20432059ce0b3935d7cd9972953ce6b123b7. 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/QM42K2097004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b8057e9c337e4c8359056b97b0d77c885f9eb33dc31a2951240e2db8314d22. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BGA472320639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6df707ec48ee0b3e4d02758d501d0abe9aeda02d553416dd85918d60538dc9c. 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/BGA472320640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0496c2900c469e75cde72284028d78658eee722b0aeb5ec4a00c3fe1da10f9f. 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/BGA472320642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eb6e122fb7a0a70123facc4cc173faad0c99fe58dd543ceac562c6640807a2. 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/BGA472320643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfc4b4a07970fe765426f4ed71b4fa9c158cc35f7ced994c18e0bbf35ea14b5. 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/BGA472320644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820ac47a9c7e22337911a6bd11997fe941195cc927189d151550e97cb7b3cf7e. 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/BGA472320645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52aa4bdce42712b9e2d34f85451f1e4057b51212c0b0aca91facb2a7c4efa718. 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/BGA472221067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d507f6c804e437affce7601ec39151f4a9c5eeaece918ab4809f9df15737e1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BGA472221068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79141937664555ed59920f1cd242c658294a85887b8712cd94e3acdd3d193d3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BGA472221073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c24b3f4416e31e6b02042fc25908529473792462cfeb7dcf902cc23ca53b014. 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/BGA472221074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0969dcdaa19073289e27153750e79ed0224d6cd1be96af9262090936f6c74792. 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/BGA472120372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c6d6118a739ea5fb7995727ca064c0ed129cb37879ca44d9135dffc938d4c6. 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/BGA472120375.