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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 0x5631e19bbda73a528af1aef1ebff5f9f04d49be82a0432bec8145080f0c471a4. 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/QZHN82415812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea9d71d5c6e9c93150de5a9ebc7a1873fad69421808355419a0be10c5ca5934. 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/QZHN82415813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5866cf4e9bb873c1e36ae64b4b0bc9abee8914fa8eb2c97ea6b0689e21e04b. 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/QMANG2463702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10db2ab7ad1e5ddfa79a983fea9f41ff531b89468c98f11087684ea0c870ec5b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QMANG2455993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ecabade8735f99764c3a129408ef9494438cfe8b817258007a8698d77c5eb1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US3DF2544784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7e4fb2c60004cff84fe16865db384288a3b92d668dedd0c36114b3ccc1a3ee. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USANG2529985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd2a6246814a0ea33b7fd30b8138f7103d06a9b7c6ceedd01d007e42d0172fd. 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/QMANG2528283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef9fb8295538c8ee0fbb55d17ab756b284162ab7c5edce899711e537a9e994d. 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/USANG2504011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c99cdfba63ea6352b97c48a14df00af357e2d7c50f24d6b54ecfcae3c9404b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USANG2554522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaab25e88b10b1f1794550d48b4d54a8f4b80a4bfd7d48ccb990ee21987dd98c. 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/QM3DF2573903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd529af96a1dbc737c249b0228c39c0ddf8cbaea8904206a1d9d059c6b5effe27. 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/QM3DF2537929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d59f0ca438f24ed2d0be342d22539b216691808018cbbaf00a1300187871f0b. 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/QZK6L2588881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e26fb933d68b13cbf197f96dfa61010ad66a73f10a0edf6fae7a088fa3e30a. 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/QZK6L2588882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d1a261cb550dc2c696b16e5b272835d0e048202321c7157998e7b81024081c. 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/QZK6L2588883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9b590254d062a1cdcb2768e65b7c59d83154501d2b14b7fb7feec6cf5e607d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZK6L2588884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda08d69e147e91a589fa3f848f0cfe1513ec4d799aee69cc6af21f5a30ea0bde. 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/QZK6L2588885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fe30a5d65f9d1870df30e34b159c7c1f3290bc0c3035b16c6f9a21ba9b029b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZK6L2588886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34c41ffa387998516fa80e5a8d923b9f6004551f5420a86e8a74b5a0baa83bc. 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/QZK6L2588887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6caf8740be44795756cb4ccc3d112c6e05441b2e6fe923a3e2d01b5298e9fff3. 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/QZK6L2588888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1f65fdb1a9ad6fc247d132a1bc3c1411f1ef1bf983a65fada313c8d381038f. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZK6L2588889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55fe4e8d8340ce0e30355913ed5b465638c7c37607050c26004a88cf75f7142. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZK6L2588890.