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 0xa1057a8419b8adaae97d935948b4acbdc756bc9e0000d0d131f08d5a882ddc14. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13872f91-61ce-41c1-94ef-ea4bbc77690b.json and https://artists.proofprofile.net/proofs/artist/13872f91-61ce-41c1-94ef-ea4bbc77690b.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 0x52505ab11531ae0e50924623c7309490c76cead09cd16d5baf6231db4c8141e4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/MGQ002000249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4053ea38d9f8c5bc49b40af936b139cc115db06566baab44bfc8ecee0971b7e6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MGQ002000252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b9e11c97b3578faed3af5e7b3392e35d64fedf92fd75f782f64d76621404ca. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/MGQ002000254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4593aa8a7608d0c962b39212633a2a3f4d6b7f4dc4bbdac1aa5065d577b2f0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:50:33Z), 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/MGQ002000288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebfac7195899da3c4db10f75bad272115363c27f86c0f2dec804f05f98ecc86. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MGQ002000291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37815bd43e2df3c52f11efc9de69c20f7298fc49b6cab87be4429cd0456e595c. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/MGQ002000292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abe643fc5ae3ef9a8a67fffb32b954f5415d1cc163a4f13216fa35d65dd6906. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:37:41Z), 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/MGQ002000260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180afe51b897e4e712ce71a2a220e45dc4e8421b94df3f6c1b5e0b3e38672fe0. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/MGQ002000261.
IO Anay World Presents Madagascar : Vazimba Vokal Mozika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4290cd2f52be6522c0a46cfb7f08a88104598b1f9d370fc6b0f11ff2110b34a3. 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/MGQ002000265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb6ff4f053d484ba12363848f77867e249df3fbc24d6db4e8d0bcc6d2b8f4dc. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:45:17Z), 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/MGQ002000267.