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 0x3dee3f7256dd1690c3fed666be84bb6a686733785528d6be53ddcbc9677ac0b7. 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/14625641-7b65-45b0-bf81-87d95252d59b.json and https://artists.proofprofile.net/proofs/artist/14625641-7b65-45b0-bf81-87d95252d59b.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 0x276bbc1f60c1bfb5e23bd03991ea824995cc0397fc2f9ac5fbbedd161618b1da. 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/QZH5E2031221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659b0b36f3e647d6c98d5ea6301671e310ce8839d444b18f78275a06aa2261e8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZFP52071994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f8d82d9f87d57e5927f46b80c6d7e4480d237aa8a740c5d3c7b9e56494739b. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:21:48Z), 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/QZHPJ2062599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c291424cb1e878f059169666ce9230aa8005860cfe0275a2023d2992c1e6c86. 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/QZH5E2071191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996530ad6069cce7a29de17f73f99b56f2e04796f983d202fb1f40e8068b1b8d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZH5E2099489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3766a839a04ec575bd11fb6e64fed438a8e7eee8e0952988615df7640222125b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHPJ2019922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8ed5da6ff213a7d1184db11d03a40aee54bd27c61d07995028c68b3827f1c2. 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/QZHPJ2037820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0060f98522b8e3db864431da6f1abb14d60d1442b126e5615c686620d35025f1. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZHPJ2018570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1185372deecc0584958b022d6e7a674ed650e93469aa4810aff61d7e1352fd2. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZH5E2051831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad84e86fbd97563b1bfaf634cb764b2483978f62776ebac596088f2c9a2cbcf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHPJ2098279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7433678b0eff1fb8d99f9c8c5321d91ebf593266279abf3344761c9831661ef. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:23:41Z), 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/QZHZD2073366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaba36eb5df0b4df8d030c9d30a700bb070783825c21d527b67943f853abf768. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:44:02Z), 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/QZHZD2086006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7325c294b717cdfcfbdc2f9ebb8f037e961cd7734a91e4766470a58dac98653d. 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/QZMHK2036386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c11fc7e388e896a52b0f2ffdfcffce6260b3d7c3707bdaffee8ca62f90bad56. 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/QZJRB2075387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27936fb5c27bb10012dd98dbb934c4e15a9fd19313aaed0b8a428fbdabe17d51. 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/QZS672126388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebcaeef5f7db4796bf3145d20a51f2d88cfa0c407bfabcf105663b341c5d83e. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZS632171484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e62d29f906f6326c20a27c2a8f2b61bc10a7d4756c5bb5f495092d425a023a. 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/QM8DG2231505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5753fd47771e86e8cc8d9cfc0ecbeef1a9e52f21b08daeda18ef71626d5b58. 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/QZS672249582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8160cd5c58b7927b751a247ba51d9ce37afdcb3004cb897604cf1f9c13c7822. 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/QZMHN2267694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc515ebb9d97ae5eef5f5ad78ab5a72ad8a331102e39368100a33b2686d91758. 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/QZTH92217392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd614e727ee605e4fd997b8d54adb55ff543660f4b7e2a7dfe8fc40822e9dd2. 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/QZS672222686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e32cde630b28c262f75c87928f32d52fc63935701426e5c0b3f9684d97e8ca. 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/QZMHM2265248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68802882a2a6723566cf593d33cf25655b5bfe4d195b81594f6efabaf45cb411. 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/QZS662270034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4683178c19b1f12f69b1dec16b404baad8108db3301cc01cc5576b0d9b20042. 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/QZS652250521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1217c41adf40443c1f027e707b31f24f26ca38903612ea95a2609f0bc79b6d. 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/QZS662259062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d19c0360521a39e00dc68e8e5012cb705c8de1dbeec3b64f77527ae67a5460a. 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/QZKDK2224336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d934fc1b493ddbfd6c4e68ae10a3a116d3d0104c0ea41e14b7542105eda3031. 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/QZKDK2281954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d9dccfe7d4b152d98434ba42e1ec1bcd85aa62c2b2351ea2a1f0b822278575. 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/QZKDK2215607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e62d29f906f6326c20a27c2a8f2b61bc10a7d4756c5bb5f495092d425a023a. 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/QM8DG2231505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329c63c08ccd451930456a1f969de147ba084c1668ffc7b52bb13ad855106c3a. 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/QZS652273489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30282093ec35d01cd1173e5d9f58d91b1c8f82d9166443610deeebbd7a0249fa. 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/QZS662230333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5b41c2e34cd1ae1d0d25865370f42c78d58f6b34fc5f1f0aaf2420f26250a9. 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/BXIV82326705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0504797dde5028526c84639786d2ea1f6364620f5c1ca0fb8042f520b444f74. 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/QZES52288407.
ÓPERA (feat. VirginGod, Flameboi Matt, eddy0 & twikipedia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57329f6842d792e15bcf042f40a193eaf6de8aa2b316bf9f2ec2dd23fee0d576. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/PTBM12100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a63b9b14a9105e98fcb9655fdde70dbdfb243ee6573fb82e7b2bdc95f103f3. 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/QZS652195369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772fbb9545c14dc3620dc25f3d63ddc4dc9a819aa98080a617c92046e3486b95. 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/QZS662181110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa151e867988a284f204c19c3d33470691b86834cd22558fd4b24607ff6bf3e92. 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/QZFYX2402673.
nico's nextbots vol. 3 (original soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ed461ee3c7e4fa88ae959bb4b826ab6777095163e8a77ef3674b8f8fa64a82. 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/QZTB52334128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d55755231e412ce0e8d24bea64d773c16dd96d51a63a2d8ef283178a250b8b. 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/QZS642112558.