1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3487c62e596fd07e1d70ed4c2300c1aa3694d7fc2ff8f54eb3fc83bbccd869c3. 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/b3cfacbc-e675-4784-9061-a58e3c58fb72.json and https://artists.proofprofile.net/proofs/artist/b3cfacbc-e675-4784-9061-a58e3c58fb72.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 → block OTSBitcoinBlock must exist at that height 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 0xc4d3604016f4ee55f2c27befd8838b491dbe5c919369f7aabd2f169d7f74ccb5. 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/NLG620613695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0051fc33373ddc3241b255de9b5120ff7719aa4a32a3b48136f16a73a1d34e. 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/NLG620613696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d623ef128a071d9a8891233690d438dea0b20a433baabe7e4656e795e461dd8. 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/NLG620613698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed45df899beeff6ffe366e90ecd746204ddf6888ca59d73127316b05e4c6faa. 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/NLG620613700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0bc2de70e4abfe5a47fc4bfc5edfeda64e7628f1b20c8675c33e04dea594d6. 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/NLG620613701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daf1fb41ca711257d7f1ee1a93070a8bfb4f39a5bc8ddd8e7272da368bb0bf6. 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/NLG620613703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1633afc05b7356203b9c5a6c769ccc98069d55988322283bec80b067e80fbf84. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLG620613705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69813b99d8062d89284b511913d2cf29b14e64a47a2c7beff683bc5987a60d1a. 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/NLG620613706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651fc086d17a16b564dbbc36577e9d4224d51b826ecedbe9eebff004f333b3de. 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/NLG620613708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d74a6bcc9b15a79ac4490aef566652d70b7199cd5a834e391932823f25cefd5. 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/NLG620613709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647a97a5fc6742961eaa6deefca54efa1c662b1ef69085485e60b5711cd7da16. 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/NLG620613711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66fa0354a437db1697695b5affd30e10ad0449ac1723ee881959df7cab42ae2. 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/NLG620613714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f64bff059192d51e0d740f671bfb69a3dd294c1648bd0d33d8abf9d1efe3ed. 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/NLG620613715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71907ac892cc5b3a1d2ea0c49107dddaca712f6e0a8c90cc848b396fab9feedf. 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/NLG620613716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd03704538b2829f3bad5e601cff570e30c025d7edcf88a4f53f35802aa93e6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLG620613717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b144cb7d9d5017a8a6966f43b73abae125cd9f26187dce0853b6c28acee8f0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLG620573547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d73e86f88c7d6546d858792243e099a657a7843e7afe432c2bf590c9d92c945. 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/NLG620573548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f167e67d50491a7411c97fbe12342ecb410bb609c5491122feb2436f699283. 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/NLG620573549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288b986d836dbcf1dd84dae2fb2e5ad2bd9f6edffc787856f6bca15107870eee. 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/NLG620573550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614f05532ef478d204fd9cbaf64a1f0ea035bf3edd98b55eaa4329b14cb408d5. 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/NLG620573551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e374e19ef6ba246f9b47fb22349697444d1b9e77bed71e51958808122b09ff4. 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/NLG620573552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110861e148057c92492d60a580e56cc4c115dade6d66d0a9bbaef6ada37a48f8. 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/NLG620573553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f339c08629ea9ac4a19aec8a7e313091754852d915694da3573dcb20a7be21f. 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/NLG620573554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf424faf1278c1dcdd7b6b8fc70d55baf583e2191614863af5cc33d43fce3be2d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLG620573555.
Jezus zegt dat hij, God die alles maakte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8164456c01810c4f5a951202d2f95e5c7a86b94a660e7e6f2ef83695ea21b3d0. 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/NLG620573556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e65957ac37038c5d395e92a9d53754ce9671322679d981055cb468b53244322. 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/NLG620573557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e053afd1035d503611725e7b35110ba736e417435ae6664ee5d2add7543b89. 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/NLG620573558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf6e7af94d9f6b522d75b2a55c9ddadc92c1043cc269408cc5150d88ddf6761. 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/NLG620573559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8fa5ca8eef6b74441c97c975423936fb6ae98459d3fdc7fb1d278c8798a599. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLG620573560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ae472a06d84fcb2841db00f840977fe158dc44d5fa3b0bb880f5123ec4885b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLG620573561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23935e479719be973d29bedeb70382da153a94faed2ecab13e8b575ee06eb956. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLG620573562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6934261c66e7e4ceb408a9b6fa3f33a99c92aed750e8fc7634927d0decdbe193. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLG620573563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940baa81cfbd34e4cbd424292c72d73da20b71084dee1b8a53522650fc43f602. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLG620573566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ab1b3232bad86e000c762a23d40d38c5817de89783304f982b9709c864b3ca. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/NLG620573567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577bedf89564a87026edb6bcd3fc90c4f3b48cb04fa330c1a0afb28d47b1e81f. 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/NLG620573568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd441165d7b32f8a0b65e014d9b2d416d19e3fc70da4f82c9c840847b15a7150. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/NLG620573569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f1337f7cad63e8e803cd46175e5817dde9dd54135d4b012faabad78c538fec. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLG620573570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54fa62e68773e8183ac8d09650b933b96bb9ccb705921ea74303e1f9a02c520. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLG620573572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00203233d7e4a6b524f3c53cf00772bd5128e8aa5632a91784640e638dd44d6f. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/NLG620573575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623259c6bb2b13073e388f7a4d527c731c885c3b7d47c8c37aed7d766fe25836. 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/NLG620573576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb25083739e4f3636808c9a771c812126a61754add5daddb3054435031359e3. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/NLG620573577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca784a5dba82c245386d1941079b1183cef6965f53e65d1fe4a63a789b513e5b. 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/NLG620573580.