Muhtar Cem Karaca (5 April 1945 – 8 February 2004) was a Turkish rock musician and one of the most important figures in the Anatolian rock movement.Barchard, David. Cem Karaca: A dissident Turkish sin
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 0x8b17e6c141ffaa47a5dc1311922089f7e64dbd52ea04ca7b3d892e9ab2d2d828. 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/c0b98e2c-70c5-43ee-aaa5-5bddb53d3e85.json and https://artists.proofprofile.net/proofs/artist/c0b98e2c-70c5-43ee-aaa5-5bddb53d3e85.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 0xccd5dbf81b70e16085dc2b1d5ea81ac66216b974a4108df94870f7f5a827f5f3. 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/TR0800600595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a163f5f7e3e7c895ff3707b7cc3190903e94e1bda90dff19f5253a4150cf4ff. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/TR0800600681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461ca903810433a3672714a95b623e764c976c69311d6f9499a36ffa70d3962b. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TR0800600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11b7b279a0e405fcb6daf7af0aa33ded6650fd425f096686e23346ab1d310cc. 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/TR0800600604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9adaf626c53f1a30af4133c30258c32b104f63ddb391570584654108c09dcb6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TR0800600682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eaedf77cf5c8eccbca6bc6618ff7d704c67528d21e687f1689c5b52aded008. 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/TR0800600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4108a3117b36d1270642b9c5714f96032347b40b8739302d11e10c489312674. 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/TR0800600598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700d45bbdcf5f69b9ebf40fc19d61a871cb5311f67985e1480e55ba930de37a8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TR0800600683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb9523e76598cba41fb93d404fc10b68f29be2c026c1f09e05a99e1e05ecfe7. 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/TR0800600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2129f460954f3da11efa98cd21bd6dc40713d0fd67a3446cf512d0dc27ffe7f6. 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/TR0800600600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f8f38baba451e2c5bc8b919f076c162ec7d27584fd73a575fde61d150307e3. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TR0800600684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1beed8df25af5015475e7df62b3165acaf4e197f2abc1b819102aeb6bc174c5a. 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/TR0800600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c384cd9c926a09112d0fbacaaecc9f9976117a9eb17210b29dfcf80efbf1d20. 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/TR0800600603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4789f829ce507b0d51cc333cb639aee8505f575774451247855bca567b3b6889. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TR0800600685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e1e8397327e264f7a17077e99113e74ba8fe0f8b800097ac2b61b487fbb614. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TR0800600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6df3257104c361b401b44fba450a1aa33d7eb13713ea56da8c7d91ff908b247. 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/TR0800600597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80f14ffb275509074bf9c7dec0f860f20cda1ddaa2eb6567bd8fbc0687e2114. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TR0800600686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6323cbec7ec390dc13518c0df6a22b9628443e4c288cc757107dc0e9274702fc. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TR0800600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f0614a0fd71c8d464a281bafe4552493d3ac8d75f05b73122431c8c2e774e9. 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/TR0800600594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29913e6a75ab32f0f8c547159a8ce11a6de9bf6cf4369ed853254eb6c830e785. 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/TR0800600687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e68022dbd4e3e48b6626bad2c1f6de0d3c6c02a574c93fe8c0feaae4a6af37. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TR0800600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e28b7c983d90e489f41c95ccf87984c0aab0bebdca327bacb7398509f6aaa3. 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/TR0800600599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063d46644e3b0ec103c109bae630b710f6dcfe162745abf5bce365bfa006f629. 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/TR0800600688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dff2e7950f6b1668ff2ee7a2c8d341858dd1279a43d54c87d25a013e846b5b3. 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/TR0800600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa888a3d0772886e6d594664131ac9440af3ffd80d3648fb95763cba3232aec09. 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/TR0800600596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c84da8e6609935e61be4dfe9018d1e6bc473f22b2cbc2565d22e3ea0b168dee. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TR0800600689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82285ec9ac012cb7ca464a7098703a9d65d976ad0d4f62586392b7c37b51b6e. 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/TR0800600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c544b49955aebeca1bac35407fab0c3e483c08f848921316592e8b61b3ce727. 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/TR0800600601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd058f771c66ec382abf6563d48101eac3cb99883cbbbe3e5b23b0ba3a0aab2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TR0800600690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c5968708c68d1a3e87d48d0bc19e80936f21721691031dac60ecdf7af268ab. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TR0800600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5ca37434c7848b2d5fbc60cda8c468ac8555484a3256fd8d684582f3666b82. 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/TR0800600606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb396cf9a3e7c28d850c3218d5b7682d117cfda8f0e9e5c36b220cff95936d01. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TR0800600691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32b0c89ab7c479ecaafac976e02ae9d52dcbd112868932c513635ede2e48671. 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/TR0800600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2d5ba99fdc62d0153997813b11757b46161ee250022de48bbec04a9bdad68b. 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/TR0800600607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922a599390f561c9d72dc45cba0e1821641fdbb76076f14564586f3aeb471b4f. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TR0800600692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b89d2f8471fdc8f1ecafdfa22f35ed4b4805ac90ddcf03a5fd2d39fd705f67. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/TR0800600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebabb6e950a8f77e06a3d9bc6823259f312971fb51ee88d55fae1c46975c4dc. 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/TR0800600693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecd3ecac0b17d112cd41bb6bf06fd6d578ee6f81de59842b7cb851ac79e6c27. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TR0800600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fe7b777ad48d771bba955381632345ca7a7c7fdf3992f4d1eec103f9acf94f. 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/TR0800600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347e2d0bfe622561ba9af039af9c0eb79a28f1af0eb7085266d96a26e6b1dfe3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TR0800600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf764c14c6867281c446b7f1da7a7df7c31d4d7fc6419d498ef6455a493b3d61. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TR0800600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb23ac3e77e9fcd0f8c42b2a8dcd5c8d4818afc968331aec04114b99baf347be. 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/TR0800600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b726932f1f8a40f615ad31c5de9f3e60eb6eb625f522abac3c537755e3d4ea1. 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/TR1590600231.