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 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 0xca4f86ab0fb8326f5aeeb558482d2166b4d545cd4f4f768dcf9d3a23bbedcc08. 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/3d77cb1a-ef88-43e4-823b-c30889fbff8e.json and https://artists.proofprofile.net/proofs/artist/3d77cb1a-ef88-43e4-823b-c30889fbff8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sinterklaasfeest Met VOF de Kunst, Vol. 2
De Leukste Liedjes van Annie M.G. Schmidt
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 0x1cafc1778a929f1b79cf86f65e3dc3e7c0e06111213ab9059aca785133810dd6. 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/NLA521502084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e4ed8c197b370a924befe26240e784e35ab40e6a7426364336fcf0e77b53e5. 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/NLA521502085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28de14cd7f617032a850374231228c3a213fcad072bf36ccd12a6bc4d85ec0f5. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NLA521502086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efcab98dad58da3c84c3b2da313406fbfebb94ce44ab4379ebd8404e5517cf6. 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/NLA521502087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9ee5b7dcad3b399ef694f23dbecba13cdb49bcca17b6930ada5b72f90ebfc8. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:59:21Z), 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/NLA521502088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bf083777181a8741146e6ac67e0527d9db63226adcea1a469c11020401626e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/NLA521502091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249df1c6539e0239b7221472c4474b86d5fd01565a6134411d7e1a619305007a. 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/NLA521502065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe33b99ed5bc5c061f63bef798aaf6facc9f3988a42a042fe625f655087324b. 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/NLA521502066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7a8383f77bb6354711aead654909d85d364a15130dc1317f00b55ae554a953. 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/NLA521502069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4cd2bb73da4337ea8c7529d4a235e7e48b84b343eb96a7852177eec6eecd61. 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/NLA521502070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a8bbedb165762df25b590a47a1c9714418bfb01dbb7df9547f86035a93a720. 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/NLA521502071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894f8d58d25bfcecbd50ee8f07575776721cd36574eaf91210ef8053acc1f23f. 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/NLA521502040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0068760e2c94317883ebd0fe9c133c2bafa41ad8bd90935536243ce779186a. 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/NLA521502041.
Elsje Fiederelsje, Zet Je Klompen Bij Het Vuur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73978e6c10640f1f35c221d7509631f6501d90a687a2e648fb82e65b4c5fae1. 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/NLA521502042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97af11cb091385aef1eb03c27252af435c4bd63ce2e92389bdd31aadea49ad2. 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/NLA521502043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd240eda69eb07e6d12dbc857ed76ae97c3f8d62b2c9452a2d2e14ec963b0c5. 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/NLA521502044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3a39ea46c8622f98963f42e4f3a6152091ac2ccc653e20aa3f48098a47c671. 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/NLA521502045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7f6dd92268bd7d444baf21cc24f8c59e2ac042db15e068bf087a20743d6c2a. 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/NLA521502046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13cbec354c3d63587b4e1ab2630a0230b3db41a9509cafeccfdc1a84f48aa26. 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/NLA521502047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69109c82b480d4262cf611c99699b8570e7d41261a82c5706825ef971b4489b. 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/NLA521502048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8b657f0d45372be5fcece0fe9eaf0b3bcb602a0e2cda565ab603da415c6ee8. 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/NLA521502049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b65f7d401ff3630c18582224a79393bed648c215c14925c422de3fab124d81. 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/NLA521502050.
We Maken Een Kringetje Van Jongens En Van Meisjes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6664eb6550421ec0f552f904d978ffd3473a3b417f4900eb2790c64611c00629. 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/NLA521502051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f127c10e10ca414dc7883a1d8506a04dd3b954651643cca70524f8e217e59a5. 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/NLA521502052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad476d687634090af82f986cabe92c48330d5c7f6e250d40eff385afef09133d. 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/NLA521502053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47f1bf38bf61c033dbd317b0ff971f42b22a35999cac1c747de013de6604312. 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/NLA521502054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc878f6f487f53efb23726134cedab9759c908d02c7dd1e2270f383b96dd8131e. 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/NLA521502055.
Uit Artis Is Een Beer Ontsnapt, Een Beer Ontsnapt?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f458e88e67d097d22fec3d703f39f4a54f2e33f17d77d50b88e4a8c96f622c. 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/NLA521502056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce137bdc0a9c36aa228d87aa5169cdaed8e636cb410630f273fb96c783c12228. 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/NLA521502057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9154f4b75882da167c5eedbd9595029ec061de5066d96806d7ccefa3f3223d. 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/NLA521502058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96ffdeb2915a7f9f6b8aa8a83a7ed5d8fdd3047711a1a49c26081c8ba2c9122. 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/NLA521502059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d3d5ecd4f4730ce281182f4fc4ac460f9d34753af21d2a4fc6b8a5712a977c. 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/NLA521502060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad444029dcc906715f26a83be449a7f01f9d26d13d982a9c8f9f0c18e498fa33. 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/NLA521502061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4e72f4df2be5aec24e0eb35760d18d0a9578d55e74997bfa86e06d8db767cc. 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/NLA521502062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4c9dbdf12739309b22469c764e769dc344021e52c804cc07b5d1d43ae68fee. 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/NLA521502063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73c1ab686138775229e5332389d46e079ceb4aa836874da7428e407407fdb6f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NLA521502064.
Druk, Liedjes Over Buiten Spelen En Naar School Gaan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20ef298c76a813e3bf427bb892f8117aaf3b7b466f608337652de98af87f26b. 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/NLD018318008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5841c1e796044ec5c45189acc9f0d8e567ce67e445d2dadbbc43feff610310. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLA521502176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f5eb166de0b71fb1c675f8a3f0afe2651fff77d1adf492274d9ad8ef385ec4. 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/NLA521502177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae1e91dc0bf760640ddd8231ef8aa228da4158bb2bb8f5dbd6217a6df85fd28. 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/NLA521502178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131bdaeab9fbbb83b86286555322d68e7e569641c49ccd5cfdaddd4d73f02b9a. 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/NLA521502179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb379813658d03c153d9bbb8d630c90a2d660bafed1a4b5953f08f2f3498588. 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/NLA521502180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d5a23316ff7a7535d57a9eccaa689bc3642be38b706da837c26211de76c2fc. 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/NLA521502181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50093a0e3627b3050429ad3fef0ee3b02c747baa49128d13b9ca86ab0d8b14aa. 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/NLA521502182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc1ea3413876dfe6e5e78fbb355f8f65ba6144bb3dcf6e05fecc12a1964ce1f. 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/NLA521502183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe196c78b98b920376c6e05c8f01afdd5a634c730eb9a9b5ddf158b23aacb481b. 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/NLA521502184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16df7771caf57c71809c47549e87f3434a8e72330f91da839dde26fcfd190434. 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/NLA521502185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40849b2acebec363d579378313c910ab99c2ab5b2d0b2baaf9b2a90e04e98b11. 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/NLA521502186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970f145c179a9a6826040f64821489401b0317db5cec9efb0f32d722559df1fe. 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/NLA521502187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f1069f58400fa8cab088e3f215f187df59748785f6699dd9685fcdf068ac60. 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/NLA521502114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2694238e9cd08162871b34638ca982e7a767e63fc538778caafdf00b394cc9cc. 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/NLA521502115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574095f1035c96aba10ef482b701c621facf232a2575d30a7b6b705f0e11fecc. 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/NLA521502116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c38ccb7edbceecbc4ac259737dfb6b240150579b470414110c531d879b83e6. 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/NLA521502117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75d0f7d99bbba7b87fc32a4d34c4929df0037d062842f1dcd640f8f09a4907d. 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/NLA521502118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e5a5f6a5ec0a52dc54f3421a78c981bd5727459a7e6c21664975ffb52ddda4. 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/NLA521502119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256fc1ae813f31c0db1eae46a8f14ed7d20bb48c7f8affde9e8f8dd30fab3931. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:50:37Z), 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/NLA521502122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31eb95c25172fb9311a23a30267f099a9e0e6a8e31ebd1d668feb10461ee82b. 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/NLA521502123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46020c83d083adcd450526ffa0dd98fef036617c42d5f489e50b2d85e391222. 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/NLA521502124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2902f56c7cddf408dcf9db17833f0d66a76246a0d65af72de8bf8ac5b4c2b3b. 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/NLA521502125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fee51b2f392fcbcec6ca0d50a261dd39f45669d4247a22ebaa50905397954e3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:48Z), 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/NLA521502126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077f807ffc4d3195316e5fbc41ba0d5079f55036c4c52540e3ee2466e3539d2c. 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/NLA521502188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd261ff86bdf1a207e1dd0819ee139e6973a4759979e031b5c29735bfdf8f4e3d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLA521502189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c102b5a97afa6ac7362a2fe8e08419990c193ea316f613de8ccf3300fd439c1. 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/NLA521502190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbff50c86718baff1b38288187251e638b68fd9d066ec31788c6424a89d35296. 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/NLA521502191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c251753fda4eb691c3629085c1e907bd1579a378a19f151ab51096ca16db69. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/NLA521502193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47723c61a1914dd752b7cee13d4a0f75b466f27df6b2a5f142e7b84815385b24. 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/NLA521502194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52570f886d2fc944f76dc3f00103c79fa13c2ed186eec333643aa865bff88be6. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:00:39Z), 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/NLA521502196.
Op Stap; Liedjes en verhaaltjes voor onderweg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2415ea33ecd148dcb3bca35bdfd39551e1b4776f2975849b74e222561698b5. 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/NLA522100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547388bf147faf6a18188bcfcb5a011815430187829f7cef2e8a1dc3c5fc7fba. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLD019502045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051ca32e25debb46d8d1ff613c1de4e2808b59cd8abeb4efa5e81a5045494918. 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/NLD019502046.
Als Ze Lacht (Dan Lacht Ze Echt) - A Capella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b05c8e64278eb0e75ad2e10f42884106262312fd09d81ac3f28a6a5380aae89. 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/NLD019502047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092dab99c29a11ff894fdfb743438a5e2eb9af806f073ea2e97064c0505f2c78. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLA318870003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d218805b8ef8a45d30bdf021aa5cd2ac91c95f1dcf851426af6b17781613788. 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/NLD019502048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cbb2b1c9940dd9d72f187b686197a0db37c6e904d06fd827f0b7241f88037b. 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/NLD019502049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba67b5268b510ffe6a2b160de15a8cd44123ac36fb4cf20226ba877d30342620. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/NLD019502051.
Dag Giraf; Mijn Eerste Popconcert (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20ef298c76a813e3bf427bb892f8117aaf3b7b466f608337652de98af87f26b. 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/NLD018318008.
Sinterklaas Pakt Uit (Ron Boszhard Presenteert)