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 0x37295c7070ad0f82783d14ce5289e7c008ff9fb3ded19d11974c37002257a7bb. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99716d89-a93a-4d43-94e6-5c03fe528290.json and https://artists.proofprofile.net/proofs/artist/99716d89-a93a-4d43-94e6-5c03fe528290.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 0x7eaecca9a5eb0dbba78943c216fa2555bc865c0b7345ff9f2081d23d5b748738. 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/USUR40517402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ccf13d9f0769f0def332ad5e3a7160a5b0fabacea51121694fa63eb89088f9. 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/USUR40517403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99abbab791c031f035cc357bc90950930f3129f3d818f20d154f3cdeffa9630. 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/USUR40517407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1deebdd26cf23b21f5df7cc587453a600861609b5a13c8e740097831ee4f47a. 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/USUR40517408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a99572060e9c13c7b13fa827b2a7af732699c5e6de515dfc638ea3ef43cfcb. 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/USUR40517410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593faaf57bb0e831864bb9cadfd743e36ce3502105375af5899294a2f31f1d9e. 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/USUR40517411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57124227bf32c94d1f8e0aee257d11eb685f932541d22c5a12eaad77c55fd54. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:49:39Z), 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/USUR40517413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9f4bfc4db6b507ea2a70913ce4e8e9185c6c89a4b9772873b183d777969bf9. 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/USUR40517414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775a484022538e0585d10b98484d862e016b7cb4fc6d69bbb0a012a853f75529. 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/USUR40517417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39951be04442031a955e40ba9ff0f25fce3a489a2d2359b3957ad6227332c251. 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/USUR40517419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31a1d4d66dd3b70cbef4366ccde69360fbe1e0fe16e0a2ab1339e380f7c43fe. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USUR40517420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75aa7ccb644fcd2c3c77bd14c1a5c42d90f821e832d99eb3e46a6062ac28c043. 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/USUR40517421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ba4bc4f174617b584804d0b50e08f08fb964f413f032c5564104d6e3b08cf9. 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/USHM20667363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859ebb0aca6c74cd65cd2a28fced8abad702af630ce789e33416a80d55243129. 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/USHM20681601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd558a129b5014eac216bba4649f237d2dedb3ff963d264f5691bc54f3cb7df. 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/USHM20681602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff086bf31535e3be30aad4e5291c2e1157fbcbe5a48f8aec7e7d83c23c3eda1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM20681603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa5f8da1c81518794d459cbd2cbf8771f48127844c89f865e2fb1a0e2b6bee9. 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/USHM20681607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22eabc48e0e676e78ae8b30b4ea53675a37d3875c19883589f082d8538fda51. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM20681611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adccdab9ae0bdbf728dafdaa59e65d57013d1f2cabd352e25149c2934960037. 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/USHM20681612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630b80d8f508ff5fc18929b9c1d0ae82bf4827180d74fab3f4d83139722639f8. 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/USHM20681614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc250719b5ffbed9d44f5371921556950ff0741695b3c7d8d12d8c08791b1473c. 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/USYBL0800400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731f11f382a92529125ed744ee822785c445e82513c7177c53120c0f3fb630d2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/AUVWE1500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f0125791154458e4fe25c001055c016b65dbb3727afc30063b86af51a9dade. 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/AUVWE1500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a05d3c3d0827c0f8da15ea45755337e6ee8cf043ee1d25c8946b388bbb1ed90. 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/AUVWE1500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb42815d572713495eb7fa4ddfe5b4fbb05e917041d42ed71a48b98187f634c4. 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/AUVWE1500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c60848e70f006c1673f0e247972f01bf8cbd4f5b546955d18475dc67ee5e48. 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/AUVWE1500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9632c11a675038377c134c51dcb37858e98309372c11607cc417a762fb569df0. 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/USUR40721805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b458f448fb7f6c4e9456d51010dee0da68ca25078cb63a5919f29633144c14a. 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/USACX1800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51158c2069e78e5af05df8e4027d07667d57db975c9048fa67db1c8bf39d1b06. 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/USACX1800061.
Crowd React by Lightheaded (Ozay Moore, Ohmega Watts & Braille)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db2adbebbf074df65de53b53462590eb8981b55074f71ca78a8c1a09e6d2d9e. 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/USACX1800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efcebf59644cab7093828e3f3e4dfbb6a0fde9305117f916c3494b74debe301. 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/USACX0900335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731f11f382a92529125ed744ee822785c445e82513c7177c53120c0f3fb630d2. 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/AUVWE1500037.