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 0x7aef6d1ff40a930021b6829d3274507be6b31ec4eda5356aa691ce1845933f71. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9282182d-6fef-451e-875b-efaa0ec7f02e.json and https://artists.proofprofile.net/proofs/artist/9282182d-6fef-451e-875b-efaa0ec7f02e.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 0x277613528c63c02ae05b2be3a8b53d0d992145f656bff5d4f61a6532fc792f36. 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/QZHN32129716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19385dfe13fc0d998f2cca0d73ef450d04a1642251b26c5e072d0dd24038b280. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHN32129717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab523708c3b5cd1cdf8f9c2b8da85c533b6f55f7456d5fe3a7335c83bb26f7d. 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/QZHN32129718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8824dfdf4c80722997e412cbbfccc96f81000ea541c0269232668606955c86. 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/QZHN32129721.
Cala (feat. Polyester the Saint & Tiny C Style)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fbe32f1d3107e02079492ed1f7d7de7b1c3a0e2120a2ccb64b71022aa9b2f4. 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/QZHN32129722.
"Dough Networkz Presents" Broken Cuffz, Vol. 2
DoughNetworkz Presents : Wolf Pack, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d5fb94945688c7dbabaf763c876fb005f45b6698ef2abd57eaba563bf5c8e9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6MZ2411440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb5f6af13189633a7cdff73c5b1ce781eeff54ec1b50b2615d4f5b9b82640d6. 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/QM6MZ2411444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123f1ff7c5321343a353eeb9bfa668775d9a50070ea181c132bc5e5e76edaee2. 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/QZPEW2599702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0b320772b9717f6e2c1a96e4f9dea2167dff3667fa2a54594ecd2f42b59d49. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZPEW2588812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535c6e51dfd1d5e92d2bd135110acb10f7f187fb57fae8f8ab2840b3a5106c74. 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/QZPEW2588815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681e7c62182db48d086774b4bc3abc26d4ad24890ddcaed3723fe2c7ac37efdf. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T10:58:55Z), 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/QZVEM1865361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3040e92e4927a19aee626c53c9845a4a3ce23f26c2b2fde5877686f9869165. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZVEM1882636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c1534a7d730115c8e4f7d13ba458ddcc2b9ef882ee25c0759df48f06757f95. 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/QZPEW2588818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c80df10606f5e2de6fd295032d0c7543ae62b2bc8706a5908b8b42cb430d384. 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/QZPEW2588819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c2b137faebe3fcb36a6f5a0c0f5d86ae978c93057b8fbb3b05f8f597d51a9a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZPEW2592897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676d1a1709142cac6f675b39eace6d36e5eaaa31163111b0a1d2463cb10f89b5. 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/QZPEW2592898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd71efbcdce41d1f69369bf05e6d1988df615ef12a76bcc319c131d7daff5ccb. 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/QZPEW2592899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07a45b2f6a1a347030f51ab4248fbf638e3a9e7d1295a8e921e0e71f4371bb4. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZPEW2592903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fca63fc177a33745b60011fd08a89c82dfec79647314dfc86e258b45b105194. 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/QZPEW2592907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c827e2c0cc1e788a347d79bf450d1cf9c327e61307527f7b12d7d171ae918b. 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/QZPEW2592908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640b1bcfe8a621509fb0f421b0b496809494828e36acb8f675b84535d95a5097. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T10:59:06Z), 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/QZPEW2592910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4855d9548b30cb0eaf148b40bcf225843e458bd19c5506c9dfe3678ced923a23. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZPEW2592912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4831c5aa3b715c8631ff45421d3dd5052ace4e4c4df8c3cb218975a3ce64d3e. 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/QZPEW2592913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b6b5cda4cb76b2f8792463e353dd6fe407c38f288358d8c74673ace5b2619a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QT4K32545095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534da76005feb225d6b07071345125b0d2ea08f5d091a0c6d6ee84e63670f550. 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/US92U1907589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27676b04047b55ff3cea371ba89467c089347240c9df87174ecef31fc03db1ad. 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/US92U1907591.
Wild Cowboys Revenge (feat. Rahiem Supreme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc150bfcd66f889d01184e324f157244b90a5c6e4af2b2142b3de8d95f0e5b8eb. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QM6P42495224.