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 0xd30551eb1c6552118bc2b767ab76db73e020bc3906065bbdc78579c9df2a6157. 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/66a25c9c-9578-487d-856c-9ee74c64ddd4.json and https://artists.proofprofile.net/proofs/artist/66a25c9c-9578-487d-856c-9ee74c64ddd4.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 0x73271c71bad5f829bd8a804514e80a6ff13fea03dab157872b8ba4f5458a0ed4. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/CAENV1729270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94556c2b761b9ba8283fd0b47661e1b72c50637cc846351206544770f3882843. 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/CAENV1729224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450025f5b99f854ffcb9ddd01062e7d476c05a2ded60798d5d94ee068df4deac. 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/CAENV1729253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589a03a9edcf89fb0dd6960aba80f2321d2e64edb4373758353e17a85e205bdf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CAENV1729316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b66b00ef62c023410139b2db9b4f7748da3d5a3fda8d6d1cdffd42047f229f6. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/CAENV1718480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b42264c9c24681140b8e82f75b8d88f2d0e57332eda6612a5d141dc0371f51. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CAENV1718483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482c40bcbfb94a48f7c30a7b0c0216b2be2d58546c3397aa1686ca86b2d6a3fb. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CAENV1718494.
Waine (feat. Zanka Madi & Dave Good Fella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1029f4dabc188fa619fc59ea1229ff459d0b1b4e65e43aa6700da430e908c989. 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/FR26V1514553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa622e242ae7fc4fa72093b6a7af2706ac911bd39d5d952f53df1b2c566a1393. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:55:04Z), 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/FR26V1617092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e4af321d15877ef821b42391f0988d063a44e32fb1706a39ce606c4542d3d6. 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/FR26V1617094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46564ad0ea2c1112112899b6a1137927d18e849b2be9fd54e0f03f3e07ebfedf. 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/FR26V1617096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7554bc72bac68a730dbf0ff4afdb84f57dbf6850ecedd407c7a347d7c3ad8b8. 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/FR26V1617099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfea1f2622cc9b18a5c4baf6ecdd66829cb6e7de71da88c8da62058ec9590fa0. 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/CAENV1724631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437bcc291267e403b86b8fc19be9785886c6fa56cafdbcad8152a389b0fcec12. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USL4Q1775583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b11093997beda9180e1969cae7a593a46404679709da4bd04086d2956ba73c. 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/USCGH1852002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c303e2615b117882fee27099afb17c582699d83b8e463ac555f9abab9cceb7. 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/TCAEB1950112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf85e4f7dda39239e279d9b679a37c381d6da3c6e7c1e0d4ba25fae3db6606e. 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/USCGH2122593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c1f958e07a994cd17710ce2cc6e1e8029111c0b59ce92fc4fac72b630fa81f. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USCGH2122596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0417de3c230c6f1f33b8e9c28a6460c3bb0daf5a06c71d7519db6498080e5449. 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/USHM22232036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f1987689be47abfdbcfc94d2a18d07ab3965b5cef01a2a05f1e17857eebf98. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:05:00Z), 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/TCAGN2275824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e43a6f5667d200ed946f866fff6a77b9bb6da36ea5a5808f25d3f60983d377. 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/USCGH2351452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd083992118a8b67704f36fe4a17d40879379d372aca9678adcb12f8e52360054. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCAHP2386633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1699fd2e0d85e5877a020befccc535ce4b642b612bbb624ca5e8955201101558. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCAID2446423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167e34a7114feac5b13a194d3e1604ff6c8cf6890f282ce613ec9fd1c083fe88. 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/TCAIC2443697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4be75dc003a67f3fe0251f6a2ceea61b67f9a3170b7b83ae1588c5928df60ef. 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/TCAIZ2434693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65934258372e04df555a66ba0e6d1a25b848847bf03e308c0732563b5dd6870. 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/TCAJD2495581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd70ccbdb152f67d67588d36df10061524e9fc43f0a9eea46ef0ce8d3b54174. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCAJC2421518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d9d809a7042a8165920fc79bb15ad1b63689a98738a2661f3bf2ca22645f27. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAJE2514755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d77823fcc4748fe5929523efbc18eb7bd3f0ed059a38135a4ec1f059466bcf. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJU2545629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e878a4a2b9178cecac4947069f7776b876a8dcb84cb23f087faf2457600f56c. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:32:37Z), 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/TCAJV2543342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdbb7c375f2a14110b16fc93ade0cf41d43e6dcb68b2b7e818236953a632597. 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/TCAJZ2517585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e259186e0a06ff17b229df46d894b9bae47873fce816a0980e6c8fcc42610b5. 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/QZNW72406988.