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 0x22c10f930d6491b16d50dcfaed56264ea4cf3b3f289fb84491ca09d436860ada. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed6647e8-a84d-4475-b28e-67fd1f229d4b.json and https://artists.proofprofile.net/proofs/artist/ed6647e8-a84d-4475-b28e-67fd1f229d4b.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 0xfb49cd4ae4f98ff10a4dfec3d13359b727676b95188c5d61c1407bedddc3d2fc. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DEZN82530300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4195ccf05b03d24b3d78b2ea40aecb48f1945d35f2bfc2701485510dec2b65. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:40:24Z), 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/DEZN82530412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74792bb3c0e0648b3117c7a12cd8a2c6ef74d40570fb9236515a9e6ee670a96. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEZN82530547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425f1dc7b1479d9a3246fb19a2ac9f7461b6b2cd28c16580e3b008be16dbea41. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEZN82530248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3e425360e52142cb758c1e4bf1b0e02dff1c8c67a4dd35506223b586581c49. 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/DEZN82530318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8580f2419184501cfdb151fcb2e207ddb43897bc0309df30ffe4507d520ff80d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEZN82530112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab26fc4cdf7ae01ad819cf01de9a74000277280f5c01dd1aeee258ea1d99b5f. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:44:58Z), 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/DEZN82530541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4522b78f0d8824d5d2d3bf6cbb5fc82aa14ffda4742c86d2add282d714ee567. 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/DEZN82530105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb048b22491c601eb3709b7300c6b9558b54e00585fc4a010156fd7a9ff708bc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZN82530269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6106e8a9b6470fbd771dc9c9db3a18fda40f011965a7d877d2fa84455e0f83e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEZN82530392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2df3711a4f702e3b80a194739858862d0be1a0d8218c1a9bf26550e06f9137. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZN82530419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2583d4f8abbd333fde5c79994d408afdbab98fc44562c7354a3ce8d5ce3eafe2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZN82530374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f7c057b094b09417643b058a2129297ebe89b28b30d2c0d55d1ee47dbb09ca. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEZN82530349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaacd6ad42c25c98f024323ff34b0cdba38f98fd7659e7e4a37c6e943abd501f. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/DEZN82530324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f66d4c5fa0d06c2a9de6845d3766cb17f08ecf89fda7f592da84955949efc66. 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/DEZN82530299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780b4d825c801c5cb9835941ef1daf3d51dd41fb6e262a06badafe4ea22fc874. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEZN82530290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84145abff19cf797a35b2cdcbdf8cb5d5ef41c5c329b09f85e181e65dcdf51c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEZN82530488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93331f3884dc779064dd0fd225ded8d6fc847b9afd5ea5e582e220a12f3c31e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DEZN82530233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6154c193d057b57eda26cc8ba1e30fd99b26e98cf90e4cf830ce124d47aa97. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:54:52Z), 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/DEZN82530185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7013879adcac55c6c5097fbb0edc8723df0b8eda49c56feb060cfaf7a25c85de. 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/DEZN82530304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29ab2bdaffdb21aeb1d2e707ddb5e2ece86978266d1f44ac7722e2b6b54e3a3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZN82530106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fad98739be9b8dd4e4663adce2634f908b134a33b247c57350477cb62ff95b. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/DEZN82530128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72673bb92ca3be22cca57d4cd2c5e3b0a18019002ec97789c473a640a994c456. 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/DEZN82530235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b44bf2b8737a43181c8d0672b9db9bdde0f87704fa3fd25f3bfc302d871f7bf. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEZN82530176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56145ad09084993c6c398f26e17ebd5d83c0af1af3bd38f692b53ced12ffa691. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZN82530243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc811545279249da426641b94fff1b161717afce499dcce29cb1ae6e62de1e460. 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/DEZN82530092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78d344c2e1e4975e3ebaa51fbbc2d3f48491171cee6a70d61847c1188b173e6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEZN82530232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ad2b10128176784ab53af611766fc8718b3ba2737eb29d2beb633734937901. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZN82530414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7f57ca6923e9be37922b07b798c7275477323829bc91ee8d25a0723d47c1be. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEZN82530163.