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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77b74b8c123b84ae17f2fdaaba0537dd94e02a9d85170b0b2d8385a1c08762b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30a5f766-b600-4104-b5a6-b37f91039b20.json and https://artists.proofprofile.net/proofs/artist/30a5f766-b600-4104-b5a6-b37f91039b20.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa54ad8f29da3c2fc0252acdbfde99a17f6cb4251a002cfd4a2eae7bd970f7c6. 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/TRAKF1510115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70860cf12f63d6e663caf95aab810666cb7a78401925c9cf4a9eacc49d123893. 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/TRAKF1510116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698202c9acd25dbaecfb390c9307abbc5fed0e94cb5c5b79b86e6bdcebf69e90. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TRAKF1510117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f9e46c6356133627b7a0ce0142e5826b5ee1080127df7870aaaf38d3c8c9fc. 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/TRAKF1610959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b68450a66080b35819d2f74c110760d3dcebe803054508a6933c9efc999398. 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/TRAKF1610957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76ca1daba5997f2e945cbded2ec83b5a4f745b491f9d16ca618da9024b8db82. 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/TRAKF1610958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943bc5bc7b5a21f432ba29259a2e0a997fbf494ce2f3179e6299dd8f86ffe197. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TRAKF1610960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9becce2e200be64e9215f86719d674988831a5a4cf4c23c8b605202346507ae0. 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/TRAKF1610961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5db04246713e3fb2b37a07fa377eee8ac1a2177e94e2c8de963f18dcc75c16. 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/TRAKF1610962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bc97a984a3c64ce98ef9d34eda6eda86746a195572fd2b045809a573458512. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:39Z), 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/TRAKF1610963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fcaa730ae789e9b9ebc13866794fea222f241bdf9a8e5d2ef7db052085f164. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:37:38Z), 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/TRAKF1610965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8511d2e4ff2f0b74bdbaf3559e6677c743966e3b08994178cbad56eb9f13cb68. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TRBDY1916301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ab10e9afec3fe16c30c09f6a8909a7525a7d77b1abf1da6d4eae35249b7a45. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/TRBDY1916309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b47f413d47bfdd725b0a714d35e82ffda2305ca30f238a2386c51ed3859e950. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QMDA62234917.
Keşke Herkes (Bostancı Gösteri Merkezi - Live 22')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd753f96a092813c42fff503000d8e46c1d87cb2555971b98924a91cc0dda78ab. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QMDA62367876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe160e1bc7af7655d3348a2cfcfac26445b15fe92ae217227584d53254025e914. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QMDA62367878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3a6ffdbab0720e9317dcdd4bd4e6aaf30d3e757ed8df9a3eb170899a15ac34. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QMDA62367880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52cdabe3c0d3289581e66a660bd504786c433f012d64b18bba50486b3f8701a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QMDA62367881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddb605b297eca107e6dcd62692bb14cc3cddf94cf1c0dbe6c1dfe61b9fcbabb. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:58:38Z), 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/QMDA62367882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8c05dda98f9a48c72b34e70300e8e2dfb772bdd5eab58dc7a1022a6570be69. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QMDA62367883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60af18df75360c5c83507fd60f5f7c8c8824a66ddd30f2e765d27fb2be4f0b36. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:54:15Z), 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/QMDA62367884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f24272083fcac00139a8441367cc4c4699b7a203e1d835ef00e1268148912a7. 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/QMDA62367886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67349f1c69b120296655e76d89bd1bf47df035a8affcf3cfb3d87bd1add29c0c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:41:36Z), 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/QMDA62367887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3a92f0a199098ca67406ed76b8e79889a11c44584f92b701032252e054b579. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QMDA62367888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61230be485f07b64f98184e1dc0c39ad6ba781bec064cf4321f28029ac57dbca. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:21:58Z), 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/QMDA62367889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bf0643a8677748bf95478daee11d4daee5c2a4f105d2a4be8cc5741331c6a5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:52:05Z), 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/QMDA62367890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f971abdb4ac89ef4215968e76dc429eae00c4a47edfd4c520976d1235fc0581. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:24:39Z), 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/QMDA62367891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d74f75c64c75cda97e86c14878cc1745ea02548d39b8f732868130274df5e0. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QMDA62367892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d537bfc8fe04e19c17a9caa3fdae4edf79827205911e19366605fd75ede1b74. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:43:42Z), 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/QMFMG2316512.