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 0xcde6650dc68786dddaaac7a24d1aa1ecf3b6f0c2fe1a87ba39d0386f297ab8bc. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d01791bb-a1d9-4092-a146-7ba63d6088df.json and https://artists.proofprofile.net/proofs/artist/d01791bb-a1d9-4092-a146-7ba63d6088df.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 0xd2a3b1fd407b52843823eca8350622cbbccc03ee90d9f5d1b826f78b7a3da973. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:01:43Z), 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/GBKQU1793849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa09e69aab80baaab6e314ef9bf37ab4e37ef4e402386a1e56c18dc4f7953de. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:10:55Z), 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/CA5KR1846291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc23acfddfc19aff1273f1f5e65724565b0dae38cb1837f58c5c1d4d4db2be2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CA5KR1846292.
Dancing Till The Dawn - Robert Reuss Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9986acc011b0441bc6e7a3bc9a83883e442b63bf4d656114b2d905929a190e79. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CA5KR1846294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe50e72104fda6e18711e2bc2d42cd457a971fd9afaf46b6f8e37a23d3be7d8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/CA5KR2107516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf879c54c3ed66a3967c07a3d2f19706bef13107efe1c4a5250b213b5e9b01799. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/CA5KR2107519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10364135890c793d4353ff52b0ce81c35ab853c950112a13d7ef86ccaf122d28. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CA5KR2107517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39747e35e2e59215d05cad12c6ca6dd327db517efbb828dac60dc9a52ba3fdbb. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:56:29Z), 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/US83Z2535820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe3c04505b24630acb7577c61eb8f93c30f35c0e9ee1cbedecd19a6bde76ddc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US83Z2535822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdf6feb9dfcea24ab3f1193c6c27b77890aaa9ad8a9417172f1cadca41b2da3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US83Z2535823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbaa28e3d4a98b93b3684c8402f00d335bf4e2938f566b077a827703545656d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US83Z2535824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a3f43f4af0fdb11553cda138c7e9684718a9b110bc920ea8bb71cf2df93634. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/US83Z2535825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6066f5ecaad3c4a15e47139f2700cdabc01dc1ce31dc9a5836294721363311e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/US83Z2535826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397a3cdc56fd7df32ec86529b55b6d11d3a5becdf96e931f0d1ecaf1ead6fdec. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US83Z2535827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a67152ab004d50b2bf5ece4af1b2865e7886605bc4434d0552910a0ec859ff9. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/US83Z2535828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7116bca2179ba86377ac80efe040015c2599c9c17ab15e6a1e8ff6b5ea8f838. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/US83Z2535821.