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 0x14cfaa44f261bbd8d44c02c0a7b06a7e0e5fbe3b8009159bc97ae5c950ae4ed6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54da486d-42c4-4a7d-bf5d-2bc9f19cf841.json and https://artists.proofprofile.net/proofs/artist/54da486d-42c4-4a7d-bf5d-2bc9f19cf841.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piet Piraat medley (Piet Piraat, Storm op zee, Leve het piratenleven) - Symfonische versie
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 0x77eac91d279075d71ad8499c87c7754b63e04b30a99cb4f1c927129bfc66e729. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BEY900600035.
Tele-Romeo (origineel gezongen door K3) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b3e74fd215676d2f1ad51da05c4900d31684dc18f731e7151a9cf2c063b5e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BEY900600031.
De Big & Betsy show (origineel gezongen door Big & Betsy) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b6906e44cebf63327fc66ffae82395399fcf0a06efa0a05fcbb9488815f68c. 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/BEY900600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde057643136ccf1f644cb9a45407fc8aa570faebfbe11b4adf1518f5bce8d9b4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:01Z), 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/BEY900600033.
Ya Ya Yippee (origineel gezongen door K3) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8006ddbfe1343c93f3bdef8231dc44c3b084f9a6b04e8298aca26ea4e86dbd70. 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/BEY900600032.
Voor altijd (uit Robin Hood) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8c08abc85ebff4808b53a0ab31d5a6bdbef06a7664450ecd4ec0e23b71b3e3. 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/BEY900600047.
De 3 biggetjes (origineel gezongen door K3) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf659858b1e1e935c70059340bc486da147f603521dd5fdb8f27b38a242ac8eee. 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/BEY900600038.
De 3 biggetjes medley - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c3a0ab8f6bf521187bcd227e4396be808943855acb295eebb155f953ac5e83. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BEY900600041.
Jan zonder vrees (origineel gezongen door Spring) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04db61b792737d66e0a1e945437d13114b8ea174c6c687da8c7af95035c0443c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BEY900600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1b96318700b2ee89229de6921bce14dfe940519ad845b4f0d09dc7e26a562e. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:50Z), 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/BEY900600048.
Dit is liefde ( uit De Kleine Zeemeermin) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c55996c8d6cd78f6661ec5baefc55fd9ff1dcf9204c7edb03954d2504954a5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BEY900600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e1986b522045a547fa0e86e5c275811354df76d87f396bb8431043de6e6252. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BEY900600040.
Plop medley (Sjoebi doebi dabidee, Lalala, De kabouterpolonaise en Snuffeltje) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051880c2e5357db761c8b38d5679d23d5a2ee948fdb83e09462940aacd2d589e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/BEY900600042.
Het grote circuslied ( uit Bumba) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c097de5c995a4aa076edda252a7741904426fbf8f88c1e2f0a91400836b9f96. 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/BEY900600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea672e2fe289411caae764c89a532dbcd245f18b361597dec0e9b74e78eeaa0. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BEY900600050.
Samson & Gert medley (Oh la la la!, Mexico, Samen op de moto en Wij zijn bij de brandweer) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8e6cc71af6112af785c0978cdbfc470d356eed68229dd9845b188d2cd0efae. 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/BEY900600037.
K3 medley (Tele-Romeo, Kuma he, Heyah mama, Alle kleuren, Oya lélé en Ya ya yippee) - Symfonische versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dd10820491b30e324361624f128699355aa612fe7e238d7f08c2269846aaea. 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/BEY900600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bae3331ddd58107c8d4023de5d8db2dd70eea5d9d9121f41ff4ce24f15e9ba. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BEY900600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f2ab5ea202f194a279392f812d1b3cbbacca7e2b45a057cb1ebffe6f82bc7a. 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/BEY900600036.
Balada Triste de Trompeta (Music from the Motion Picture)
The Last Belle (Original Soundtrack Recording)
35 Jahre Böhse Onkelz - Symphonien & Sonaten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f24e7d37be8e01a9aefc26796b3ad9c339b060e9615e59f82c82ca254914fcc. 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/DETN21500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28dfd85ffd073b02a997c80337a04ab0eed48fbcb9229a86781d41a884d48ad. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DETN21500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb483f238a82db269fb1ca0134403b42df59b38c7fb2a0b1273500adc5269e98b. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DETN21500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2ca8835105e8e0ddb4a7bc9817216baf982ab0264d9cb289d9f8fe74acdb21. 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/DETN21500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08737d628f8d522541eb06746998b8f5c7be3d5af73d623f4168b1debbe9a79b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DETN21500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25eb4d94aececa6ddd0a5b1515e2ef72a4e383445bcf208dcc528f42f578d08. 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/DETN21500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075dbd6ba5a3b8f935baf0736ba44d0b356fbb89170d9e7fa8dbb2fbc4feb956. 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/DETN21500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3d4e7b1b2775bef829b1ccbe89fdc8ef42582f4f6cd8f4496c838b2cf7c544. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DETN21500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f969c77ced3f71445370296725bed88eb4861a9550c955209239edcc047c332. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/DETN21500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89304ea45d10863f37aec71d8c0d9a1a5de1239e0bb8580ccd3de7b2949bdb1. 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/DETN21500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf923ba253315394b46eec59d2235638728f0f5cb2771559dd16beced5c8d7799. 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/SKB260513504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe22355b20bf27591a90b54526effc7ca4ac407f5ff8379e5f42fa79f1d11fe. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/NOY2H1601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6791aa8086f8aed724d1d96e80ca9c5b90cb7bb1529486f7bb3ba6a5593445. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NOY2H1601030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233bac5c5cf87a494459e20fa9e1784e25c71c692a107644f437184648af4203. 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/NOY2H1601080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2f58e5ded3bf7c73c7ceaf7b0ec9b9fcc9b17defce19a799b9f99bb19844dd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NOY2H1601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71130375d91098383b1e7737f908a704a57e5def467a5e2e428295b64e5d8588. 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/NOY2H1601120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a79420c575f5a86a7cb319793915caa813de66b8936ac4189dcc689dc3c37c7. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NOY2H1601190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b056c3d81693da1576e7cdf33ce75a258e4acf63efe6136744194ff03f83bb3. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/NOY2H1601220.
The Crossing (Flukten over grensen) [Original Motion Picture Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacdbc0006192dbe8c4a8473320553b6ea3528fceb416f3de05450f9d11a291a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NOHEK2011060.