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 0x60b7f8e773d974a00e47e827072686a7b55e46b58009d85176cb64f51d73e3ff. 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/947c73e0-72eb-4884-ae31-5f35edac08cc.json and https://artists.proofprofile.net/proofs/artist/947c73e0-72eb-4884-ae31-5f35edac08cc.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 0xcd8f79d45ab9703f187e27221f630200e52316eb6c18cc2300c729c0b7090450. 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/FRIDO2311868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f48426cc431aa6803e05325c12f86ccfbae9586ea4299bb4288306ca6e70520. 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/GBKQU2428232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7ea2a80efd2bbbcebb2d0b625b5d6a46f546a1e61bef37c7d7d177a436544d. 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/GBKQU2404832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f9b0ed63fc0074e9a16d15004d54c7c44e70efcdb3bdf5adba1bd70b72baab. 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/GBKQU2428235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbb0cff840c5a26e86a2466b64b9290c181663875480eb9e0c4e1f8e75b99e0. 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/GBKQU2428238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa288f88c71915a705bad33d261ff87dec4dd4968b3e0fcc0e7623c55464915c. 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/GBKQU2428239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118ba4bb386a3ec6d7215bce507544d148c9976b5ce5118a42427e8cf88a180f. 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/GBKQU2428240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede390b0f3d1e9a0f1107ed20850db65c8c671528cc57ffae49a6d4d7ee25156. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBKQU2428233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83976cac0e7f8a3c41a0e65b8617c2c9d9faa906cfdff9d7e1f6e3bf6b778fe. 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/GBKQU2428234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc15e56af53f2be8a084339c349b6983822027c75384eac75b8d609cdbc3746e. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBKQU2420583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d64bd724c28a1561a972ffec1e1db4f4bfa17eb768b609808aac5196c148dc0. 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/GBKQU2428236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddad1be62d6b2ed13ee75e85a2816cc02ebab62e5321d3c9fb18cce85893f871. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBKQU2428237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35773add17a078c1baeb0b9aee2cef6c2a81d089fa95286b7f7f13b1c58cb96. 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/GBKQU2413065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff09f603b84079b190504809c97a1aac114cba3c6f6d5f41ad6693d750a8f411. 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/CA5KR2459534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de3b8fc44984942b3370bccdf0cc8104492a66b428653b06e8bd5e33c488d41. 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/GB8KE2313613.
Take Warning / Meditate + Flip The Fader remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a11909b4f2d645025da69b7d37e59794ecc75145aee021dc9e88131bbddb87. 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/GB8KE2302428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0411ec9e7cdf638f48b2d98297b4da0a42bfe38d2daa123e43fea452b543deb5. 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/GB8KE2302429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1605803c5e5949045b4f62dc02fbcc9d25ec89476d873980136b2ecdfea7c4d5. 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/GB8KE2302430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e10366e08471b9b17f868592ebc05f8880013590f30b4a4bd080f3e065ba7b8. 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/CA5KR2314102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa97ec782760729e25e22ef0a4542376b440e06f68559a0c55a19ec80b75754. 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/CA5KR2246421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4eb056de23cefc5056587890d22ce91a496a919d282dcc3484ae0e3bda8efdd. 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/GBKQU2235500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fd2a9737bde643418f16f69557ab6ef99fc552e6addeb95b20a550f571da21. 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/FR2X42215998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3f2dd4df5a68a6fe63537cbf2461908c8a89bc34a4c1f80582ab634277c2a1. 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/FR2X42215999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfced5c69faee3654235cc6801fe71a26702e8395515d97700ea267d2e8c30b. 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/GBLV62120553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905f3148305455057c931a1765011c26fde7cd16de76dbfbad44580b41219575. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBLV62120554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89617e43fb867df6d3113aeab4694ed715d206cc67676d2011a38e73338fba1. 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/GBLV62120555.