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 0xed59f5d2fa7aaf70c26f537596729476870b055f0a9827070293e6f1594c4b54. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acee9bfa-830c-4c47-9ec6-71e8d3e59575.json and https://artists.proofprofile.net/proofs/artist/acee9bfa-830c-4c47-9ec6-71e8d3e59575.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 0x29408aa544aa406e8b29873182aa3dfe5bc97367bfb8f75bb921868064cf0a0c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BEK012000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9ff3304b341f64fd3b7c22db8509a12e30866b8a4f0d7ffef001f28f801986. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BEK012000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc5d7ff062ab801c6f29240faf188b2f7a5b482a2d7b783edbd97b65d020dee. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BEK012000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2efe5c6be3b286da9cb0f4d629cdbbbb8133e4c329a020800ff407cbd6b2644. 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/BEK012000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26a061cf54a229914b0a272c70f294369b91b86e11bdedad5d1989ca3fd95bb. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:50:41Z), 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/BEK012000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc306d145e09f41b64939716ee7eb6b338d63253bf9bafe089caf919f42d41747. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BEK011900582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf81fdd61f7d32b87737ee407f0e89d7e72b5f0ac93f19b3047cc13cb47a7add. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BEK012000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a2b39ca1a82ed26452edb84dfa343069591524f604fcdb03ee54d8b944045c. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:35:50Z), 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/BEK012000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75c12933af90d033c6ee82f0dd278c62c9051036d3ff93f3365822a81c62642. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BEK012000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d79079b6a30dac6e7091a50f0b2043003ef147016047657d1521fe9f379cb2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:33:17Z), 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/BEK012000017.
Als Een Leeuw In Een Kooi (Uit Liefde Voor Muziek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2510b76c08861dc9b9fcb8c5567fa3c2761fed3e37ee2ea79ee6dc57046308e7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/BEG332100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d61ec8e4a503eb17ad6e0f67efb3e760d7cac3c72f6ce651919b759d0d369ce. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/BEG332100045.
En Jij Voor Mij (Uit Liefde Voor Muziek)
En Jij Voor Mij - Uit Liefde Voor Muziek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca2c49de56e3a54275ac759a6b7e31ac3e708df986a9b6fa51dec4ec1ed3bcc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BEG332100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5d9c3afe08cb01606828c59c1d42f35bd685f5c08c27d824d4d04fd7a0ba78. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:28:13Z), 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/BEK012200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3123e3bf315f77e199daba5d504df0a0bed384fc70e5e00af0b0c42e207cac. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BEK012200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894f029bcfe5c81de260137896c49799dd4965f3c5b20a563ec867cf6442696e. 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/BEK012200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11402ac352c1488dbc14c9fec32e72db81615a7a27bf3278ce3fb627e310a066. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:56:02Z), 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/BEK012200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e069c32eecb6c622e8196536be93122fbbf8e9aac77468e9b9ab7e0e023140f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BEK012200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2186ca1965a55ee5b3e117e0770a3259452995c9fd42a367b51acfb42c055c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BEK012200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1a03a714223f0fb3a9f5e0662c6c878e92b06453c93f8a5377a0c099d4b0cf. 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/BEK012200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182c672c850a1bc0c16d1e63cc2052a508ff3d2ea2610e70d4d4c805be5def06. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BEK012200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b1f8b0fedf827166a81976b4282f9ffc2310d3cb900bccca8a3ba84af95c2c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BEK012200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8545bc72d4a1d35eca5f5c57ac3ec594f780b61443892c2390f734fc5032e7c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BEK012200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a77e0211a32a5124ac7856e439f6f61e77e3048f9ffe65fcf2fd8a8d7108fd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:02:02Z), 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/BEK012200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bef33f0028945aab6b357aa5c09cecee70a37fe8532c4b644b8ab7ca90373d. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/BEK012300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3df52d358fef572015794f899c95b0c04970faa0f8596b82ffdd784060b560. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:47:23Z), 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/BEK012400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed922be1a734918181cabd644b3d0501c54171d9a8ada5d879c8d8451ecbfd7e. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/BEK012400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62387159f96e31480f119455c74f0fdfa188129b5c53f3817225432fa5ee04f5. 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/BEK012400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad20d04cc64688438e8e8ce03c1bf85155c76fd56821e46d33ef9d26c046e470. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BEK012400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6421b44794ad40e2802a17dffe9b93b50417f0f26109b7bc94d3176881e407f7. 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/BEK012400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf5e9c8a404706b4848bf98851ced8a24525a0fe201960bb398135e07c3a020. 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/BEK012400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b6ff4535c131709e5a6b405b3b1184776db45b20e62b30b35a2477a8bc35cc. 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/BEK012400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4dd857de8c5bd1ec2b54af35138a6347c7fb69368ca405b97d7852af44ec6b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:48:17Z), 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/BEK012400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef601b9f22a61ea929b32d08c865fc5e82af62e97760f9eaf7548948cc2c702. 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/BEK012400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29385c59e5b6a1dbd2efdc685eb59161b102c054bd3f23a1dd0e432722557961. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BEK012400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3b515fed94ac4bbb8acbbb1b33fe5148599fc3b2d5e35efee858e0dc36c8b2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:16:42Z), 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/BEK012400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f4fe916cae884dace21f62eccf320460dd6d861924185d36322eb9eb3b5af2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BEI262400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9badae9c02e2eafc6a92ef91331ad33d3f316d2a4f3452948b24d4ccc66b8dc. 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/BEG332100017.