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 0x0c90eb50fea441a2e7f9a00ca1e88ed57a105afa7c7e48fe1c77472c20ebb423. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33fd2727-86c2-4126-b24e-eb403029e592.json and https://artists.proofprofile.net/proofs/artist/33fd2727-86c2-4126-b24e-eb403029e592.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 0xd84d7274a09abb5c1d6f5cc8b8724e2b843277da8700ae3b74f9e63c8c4b4b74. 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/MYLR11330456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66f2e4a78a059a796b882a1739ebbd8cb3df690d3cbf63fc53048e0f9eff517. 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/MYLR11330464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e8e58aa45f5b05c5d22345553e8809a4b28854fd588f451010597ba312bbdf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYLR10830288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e9f08ffad480737aca23b5a48c913ab802bba0fa1ecc0828b112168de7be1e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYLR10830291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84d7274a09abb5c1d6f5cc8b8724e2b843277da8700ae3b74f9e63c8c4b4b74. 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/MYLR11330456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1266bfb6dc7e7bd5974ee7b5d198eb93f024ad86aea5eb34af4dc821befa8a. 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/MYLR11330537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c391b77ab0c9115fc646a7bd7922b9d90a3788c6c9f371c98fe069b9961ae1. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/MYLR11730017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc8dda276301df904b4730f4f38d0fb39c8ba2cb05cda4f2ac58a0a30804516. 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/MYLR11430618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cc3f48aabb74b24c721b9ce2f74a8c3b5ac98b6d7475e31369eb919dd99858. 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/MYLR10830290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abdb15445622c3d12805dfa973fa20f23410185f44586d33de95566bc64acf5. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:30:57Z), 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/MYLR11330458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1b4c66c87f32ca91e791172c37309a26271f14966eee30e8e1017a7c0dfd6f. 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/MYLR10830703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629698ac4e244c506380b2a35b404319a246e75745f7a6374b0b0a88b0419dc1. 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/MYLR10830739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe648757a5252e61009990ce9f73b65d561eb7ae5fe242b4e255bbcae4d714e03. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USA2P0739530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039a50b33c92efa1eba2b87998f8a52ae7fcc401e9966eba712ef63d6c3a446b. 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/USA2P0739542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb323e36836178347b00c7e4ed9c168e19ffa1db226fc4a1c978c90a9c287b236. 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/USA2P0739543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8f6fdcb98fca18f7fcf68449190cf87452406cd471dc9adc3d58cb947dd1f6. 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/USA2P0739533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13f9013ab126a6c6a80956f0fe56bb3f47290a82722d20ea928ce726c50aa5b. 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/USA2P0739545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8a505f8a159ac5fd4ccd0db3b2dadb3797d2d3f788e67ea204f942de134ae4. 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/USA2P0739534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0353ff9f947a90cc1c449e0650d5f374883d03441d7f5a000b3e5f407cae0b1. 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/USA2P0739535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9f9a42dafcfe631ee4812c05f0cb1abc808f321c6ce153f9f559eee0015bfe. 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/USA2P0739547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aeb5ad392ce7ef3d85004fd438f5c4009ac7f752a40e845d4b1b2d65acb9fd6. 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/USA2P0739536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf334b6933369af1158726aa2b6ceb51910f6dfd455eeae4577f0972d610b5b47. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P0739548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2490eca46ae730c2a5765c2f3fac965f2b1652ce87497ea94bfffbf40ebe643f. 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/USA2P0739539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcf64f3fe347df4ecaf3ab956eadc7bc1fa777d8c8a94bdbb198162557a525d. 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/USA2P0739551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb5b4ff3be027496bef724bf4259093d4fe924cf3e1c2b00c75eb03657ffd17. 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/USA2P0739540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a07a30fa5ec3b624625377974cd81fc7986f26ef6c83c2c00e3e71d502f09d3. 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/USA2P0739552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8a6257b77807ca9d5423d49d4b1e55a2a7ff13c2952c5c0fb712a2df8950b0. 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/USA2P0739553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8582f26c6ee8f5a83b5958d4d8142e5700da2ee64aa1ccf1ca42935ead77b58b. 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/USA2P0739554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e8e58aa45f5b05c5d22345553e8809a4b28854fd588f451010597ba312bbdf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYLR10830288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cc3f48aabb74b24c721b9ce2f74a8c3b5ac98b6d7475e31369eb919dd99858. 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/MYLR10830290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e9f08ffad480737aca23b5a48c913ab802bba0fa1ecc0828b112168de7be1e. 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/MYLR10830291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7098994300ffa2eafc4ab7b7a84ef61b5c97f93cc7d1e0dc7f58f6b2f090a4. 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/UKF341700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e8e58aa45f5b05c5d22345553e8809a4b28854fd588f451010597ba312bbdf. 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/MYLR10830288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e9f08ffad480737aca23b5a48c913ab802bba0fa1ecc0828b112168de7be1e. 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/MYLR10830291.
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