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 0xc80db8ff65177a0779a920ba1157067c88192d9657ab90984872e3a21e4def3e. 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/205aa21f-d62f-42c6-a5a5-e72ca6569e70.json and https://artists.proofprofile.net/proofs/artist/205aa21f-d62f-42c6-a5a5-e72ca6569e70.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 0x243efd1649abdaea8c2b509427f75b9452c33edd5cf3ad3eaee7a27ccbf90400. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:01:09Z), 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/GBEH41404004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da245c1d235a114258b7a62c8da8e93c3b65dcf2029ab27656d9b6b4c34155b. 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/GBENT1330252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9411f1ce1eccb022d2f189c9695fed56588f907849cc5377d266d8d33987181f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBENT1330250.
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 0x7653ee760b9d31ec5013cee00e87f5cdf5cfead5a94e6394aa7003a6023bf03d. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/GBENT1330251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699d74cb37f65017ad84df84f8a4e1aad4c37017c50c21dc10b78d77f7cec7dd. 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/DEL021750006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9820e0c4c11d740a0dfedae7252bb109ee74ef53a2df1185c89ec1b532a3c1e7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBLV61801173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4cb1ed171697a81a865394f4ee286df358686fa15c2874f4959fdc1ba318c8. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:19Z), 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/DEY471819185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a09d70dcf9b63f5412d0d664e4335abf94694ae8e4e628385186c9ab545956. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:00:53Z), 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/GBKQU2015289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81f579aaba36abb5020b5e3bf8b3b44853cc903efddb615a55b40d4da5bbc3a. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBKQU2213154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c40d9c86b80582ca2b2774b3e39f5213a32936d608dd56eb38473e7c1d2cbf. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBKQU2240318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072a7040e2cd67a12c5a7b9d1922552a8c10e4a5fd71ede8faaba2f97d68dbe6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBKQU2303914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56916e4ccf0149927a6113139677a90f022c38a1da53a2aa925682f8d16778f8. 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/GBKQU2309969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cd243c228215998c17c058c0c7438fb7883612b94c2abf1272f6a32daf5fde. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:47:18Z), 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/GBKQU2309971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52679fa593a736b2120e1cd9bd9977a11a66f72b7013deeb10905a05723d292. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/GBKQU2345287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1aac49652b9bb4e48e0c6825b398757eef66ba2cd5ab4f5d7b16e3be36c7db. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBKQU2345288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07de4b97b84d8520c698da5ac33ea4f0b24dde8b9589b1ade7fedc00b885b4a5. 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/GBLV62303323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd86bf3ad5311ceadca860a497d2e5a80e82a9bdfadb6474307ef165b2e59fa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US83Z2354470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4b5eb81d0a6d1b3129c502fd2f92d74182bf4b430df16354dccec8ffb04c70. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/DEH742413008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89622cb8d11dfab50a9d47ec33b8bc9435afb1f956c8255876ffaceeb9437492. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEH742413009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7e2edc2abd0a82fed673610ed35e258e8f56ef93b93f95eb5d4979d6a86894. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US83Z2417137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2f878820f725c025c21f9f1174fe7ade2c035c29bfe7385a2fdc16613e5000. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:53:13Z), 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/US83Z2417170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7164d525f27601bb9c1ffaaeb172b2f6c88db5fe5102cb78a7c4e66057df983. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/DEH742441643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df442fee857669daf40fc4583b1bcaeda0e77dec422ed5f7667558d45e9b49a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US83Z2430711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31169479168c18c119c04ff207098c970e8d6c3f5d4a5e00732c12dda572dea7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/US83Z2504454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70440693910e03ee12f08e9c389c1458100c341c9e4745c6e1fb4e8e3026591c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEXO32485680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b67da3f47d6a1d8fca1cdf56bc751fd33b2e1d8941cc25c843611d0bfc2b5f1. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEH742501929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fae365f9d4741b263f9ef665026847f77e87c0c3f8d45df651380aec913fbbb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USUYG1717086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58166b0b5edb4cebc4182995b149db9e2edb8c10760ce59528f0cbfca1a98426. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:41:44Z), 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/DEH742514775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d687dd3fa0020fb3fd3802f058044f89df8150abe4de65a107749980fc6f6a8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEH742514776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e202e2884353cb258d6af01aeebe239fc5604a955881a75893806d099b4236a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/US83Z2535281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a171bae23c82a4436242cc2b458d81e0862c4c369f589c7d1fd8dc9d13b4ea. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US83Z2548021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940e445083215f2bf3f653c7e510365376efecc1d503c3ae71bc3a09a37cd464. 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/FR6V82221150.
Spiral - Anturage 'I Love You Acid' Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01a6b3d15d6d7011003a005798be5fe484be459e3212cd8ac8b6cc1e6dd2ceb. 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/GBKQU2192730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0258b88ac99016d51a2bc324f548846f19982d6894bf91d78bdde59e195d2b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEH742327434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff32e794e18f2f3e4fee0024cd2003b4ed547f30f7148ced5984fa56cf8f2705. 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/DEH742327435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d19fdb236d6600ec06fc2c83def8eee626fa9a3d096d89a65976af6e8bed08c. 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/FR59R1687343.
You Just Danced - Anturage & Alexey Union Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808d31b3c80687b470692b84da5e41b2978c95b428ca16d667ee300fba332334. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US83Z2219588.