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 0x3331e08cdc8c7876404b43ff1d2b4c86ef571deabcc124db0e96ed0bcff20fa8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c7ec325-a37c-4747-9d70-89b94767212f.json and https://artists.proofprofile.net/proofs/artist/6c7ec325-a37c-4747-9d70-89b94767212f.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 0xc0465d443ace9bdc03753fcb263375cb89e39d709e8d5db3b6e71dfa5117c41c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ZABE32100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcadd08494d606cf43aa318f4b458d2e57c03a3855c48d87272cfe93221c4bf2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ZABE32100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1bce480b8f1ac6dab1d06410b693bc7e729ab4979efbb2793f92118a0bfae7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ZABE32100003.
Nobody Like You (feat. CalledOut Music) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a976bd3423c68fb20044937b6baaff537ac04c17b61bd51913112129ead4a0. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ZASR02200002.
Nobody Like You (feat. CalledOut Music) - Amapiano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f6a59f8d7411a4c01f1107808669e6b6bc82e9e7c0dac3db5c63280dc19dd6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ZASR02200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cb38cdbcc43995ec42b6e4b82b7bd058ccb9e6dec36054756a8736b307b5a0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ZASR02200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efb3770f4a82a7d2f4133f32a577553a5dc0af74d62674fe046f9e7a5a4ec3f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ZABE32000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833f28409049ba992110ec435aecea1f710a56f36cf67a7d6369253083a8d375. 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/ZASR02200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833f28409049ba992110ec435aecea1f710a56f36cf67a7d6369253083a8d375. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ZASR02200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fabca153aba87e1cc1f82d55b4acdcff09a7c90fbf94adf5e2d4e082ef8766. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZASR02200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cb38cdbcc43995ec42b6e4b82b7bd058ccb9e6dec36054756a8736b307b5a0. 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/ZASR02200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efb3770f4a82a7d2f4133f32a577553a5dc0af74d62674fe046f9e7a5a4ec3f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZABE32000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0c980c081804f36323d58a2c173caae9151b0a8b4fd629818b64fc61b90fdd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZABE32000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3842d01c2fe17059fa870619ab4b4b819376569862ac044047b610376cc8c9c8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZASR02200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1e172b7d09f66e0777bd5d09899726adb7e76f63290907692088536585a140. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZASR02200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02d67dde277da0fa8b6741ccdfe845bc442bc04d5e6514b2ae04c2613a4fc5c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZASR02200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96deb0991db142a87ec2b9728727ea2f10fd8f5dfbac41a00e2c2de410f72165. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZASR02200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb87c1e0dedcabcfe8fdb1f5a56a159f11303e3a1b01f774b0d3ffcfbc4f2eb. 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/ZASR02200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe487e372f10cfae062d3c92ae335c9360435f5e964107606e38f8722154ff82a. 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/ZABE32100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2144a9683874f5bb8f17e442143804be48d50c9f2e375d0a92b5e45bc31f6109. 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/ZASR02200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb6fd51f20b422b2023d38d408f455220f813153b275ac972b737d457f15370. 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/ZASR02200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fabca153aba87e1cc1f82d55b4acdcff09a7c90fbf94adf5e2d4e082ef8766. 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/ZASR02200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c58fcfbccfacd08f795572cd1b4b84ff469b83d694df82e655acf0c9957168. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/ZASR02300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ae5c25c8235f4c969ced65e58c5e7ddba23afe7c3f5b23471d21bc2ec72e62. 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/ZASR02300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda3a126f314e62b9f0ed3375b1efa4bb06458a89406e97429bc1041ad6dcae5. 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/ZASRO2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e90cb5515453f89d72f81646f5f381f319e089be9453c2879f6273ff9ca8fb. 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/ZASRO2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856e8f6028714d92908d46056a0add6ff4dd0012052113f0e817568d17e4733e. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/ZASRO2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677a68990714c1020d7a898e089c412d4c9ceb030ce071712bf10c9b8bf53dc8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ZABE32000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e48e64355704e02e8df3883d0ff6346fbb4accb57ce6dd4da6a78e744f40d6e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ZASRO2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3b6083a8b7d4f11d74aed10320dc387a4c10b1516a27bc17e095426e9ea4ba. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ZA40S2400720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b401e58290f189903d8dd679dcb7980370607d170a114b6a9bfc2cf83d6de1. 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/ZASRO2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad0badefbbe746f89f31165cec32aecbdd586390121565caad08af1209256e6. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:53:18Z), 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/US39N2403996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6748e9b7090f6126276bda30ea58ae081608d18ea339a62262142fff40743e98. 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/QZMER2127861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad215f7daceea988cc4674caa4ee45723cfb5f17fd5b3cb5f9eded67f3c2cc2. 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/QZFZ32364807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed719a68d71844d2c160a9b80a8256cbfb3ab918c1d22116f1447a67070a7bb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USANG2233432.