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 0xd2d3fd35dffde2ac0889671e9571f6bb39dffa0b13f031d1c8405325c66c894b. Chain 2 (Bitcoin): anchored in block 953939 (2026-06-16T11:40:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/209b1aba-fbe9-4cf2-b20e-ac4ad9725acb.json and https://artists.proofprofile.net/proofs/artist/209b1aba-fbe9-4cf2-b20e-ac4ad9725acb.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 0xde9b207e0ec9e15f374cc953e1a7b980892926e91985e174c0c2c2403f0b0b3c. 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/US83Z2220770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b294568cb36bd06d751061bc2a2af4d1864e0adba7ec306db7e5ce177f31505. 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/US83Z2134972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e610a1ac12dd8da31a70d8ee77a6f2d26e7adf7e282b7ef1aa87ad323d6840d. 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/US83Z2307252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617544b2b7edfc52362a35c70b88ee41872cf623c0c1038bea231d62967f448f. 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/US83Z2231107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a9157fa47ea2c77954db53152bbe6bdb3b43aa10a2768c20b0e1e57e524207. 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/US83Z2240426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c0df6d0236bd56914ba84a48ae873cac967f531a4ddcf94fd3bfafd9ef8674. 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/DEH742156547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018dd2f61a2282affe641e1c8358eb34c86faa83053c3639d4ff8a49f3f3b2c. 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/DEH742154449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6a355986495db1cdc77bf18a83f2097cef18f680321d809da9ab904cbcd71c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US83Z2132562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b294568cb36bd06d751061bc2a2af4d1864e0adba7ec306db7e5ce177f31505. 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/US83Z2134972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b5fe321fba810db425db3b619b382be5f825dae78f8536df344435899bd15c. 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/US83Z2137261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f70ce8f91b50521d00babcd58c8f481c777f4de198477550d5f575a9b239de7. 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/US83Z2133887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091630fe7a129d0de69e7066600616c9a4a3eacdf430e122dd734af0afdc4ed6. 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/DEH742047309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ccd67552b2069850ab37bb64cf7123863e132d28296f09d000d8df2a9e9efe. 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/US83Z2139577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9932fd7a6262b894ec2a92504194645ea516d7efa297cd23e4b4a385eb8eee. 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/US83Z2143550.
Oriental Touch 5 (Compiled by Billy Esteban)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c0df6d0236bd56914ba84a48ae873cac967f531a4ddcf94fd3bfafd9ef8674. 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/DEH742156547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018dd2f61a2282affe641e1c8358eb34c86faa83053c3639d4ff8a49f3f3b2c. 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/DEH742154449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b294568cb36bd06d751061bc2a2af4d1864e0adba7ec306db7e5ce177f31505. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US83Z2134972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b5fe321fba810db425db3b619b382be5f825dae78f8536df344435899bd15c. 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/US83Z2137261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f70ce8f91b50521d00babcd58c8f481c777f4de198477550d5f575a9b239de7. 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/US83Z2133887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecaa1e8e89447490d287ab7afa888bb35210b506e0a932cc979c57b63542b32. 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/US83Z2132155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091630fe7a129d0de69e7066600616c9a4a3eacdf430e122dd734af0afdc4ed6. 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/DEH742047309.