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 0x02b41353b6cac84054b75aa2f1dc45221367f5585c356a3fdf5ac7be65850435. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eed04d99-3da1-4e68-8053-0db53aa8704e.json and https://artists.proofprofile.net/proofs/artist/eed04d99-3da1-4e68-8053-0db53aa8704e.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 0x4b9dfd4f202bd457915f9a28111a6ab5227e55e7310c08d5480faabf1720ee12. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLQ8X1700144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f2b95796ec856f3562ff6634ccf58f2075be6bdbc923b01c7dfa635270271f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLQ8X1700218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d00e7c26fa75a40c508bfa9b88c008cf490ddf01b347ee47ee5f85310693c0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEBL61390958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c02b07c20aa2f6949d3cb6ed67372f84c9d34a7e27c682f9fcc32becf00ef9. 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/NLQ8X1700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b64f92aa091d75342f5ab2aeb5d621decb5ef92b24acd64f75b2e2bb5840b89. 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/NLQ8X1700118.
Temptation - Gamper & Dadoni Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be38ac276970e27adf91683f8f6df5d3422fbf92d2396f00963324c1c4591a8. 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/NLQ8X1700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b64f92aa091d75342f5ab2aeb5d621decb5ef92b24acd64f75b2e2bb5840b89. 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/NLQ8X1700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be38ac276970e27adf91683f8f6df5d3422fbf92d2396f00963324c1c4591a8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLQ8X1700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466e7ab924ed303d2039adf9632451e3d9e5fd928164ff3ad1024be387609a66. 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/NLQ8X1700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a1103e4c7a3903066141c7abed89d2b705a9fee95d76f8e10e58c2bedd2261. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLQ8X1700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc241f9fcb7ff8c2334c93f26cfbad5b31e4f38f3e4166174dcec951785a04d46. 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/GBUM72102497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc241f9fcb7ff8c2334c93f26cfbad5b31e4f38f3e4166174dcec951785a04d46. 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/GBUM72102497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc241f9fcb7ff8c2334c93f26cfbad5b31e4f38f3e4166174dcec951785a04d46. 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/GBUM72102497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc241f9fcb7ff8c2334c93f26cfbad5b31e4f38f3e4166174dcec951785a04d46. 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/GBUM72102497.