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 0x31745e8ee985affe2af8b87f8b2b91bf896b8b2663ee8da456f99b86227eac89. 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/86a3062e-0f94-4160-8fdb-893d002cab11.json and https://artists.proofprofile.net/proofs/artist/86a3062e-0f94-4160-8fdb-893d002cab11.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 0x3841498407834f96bfbb8ee879b13110778fe610e2c34338017b2ee8a9e16b3b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:31:02Z), 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/DEUE12170539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027817f876a5d2724e0a7b1e658360b5d92e85c726988fd6a8396be8605c846c. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:10:15Z), 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/DEUE12170541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b6d26f47d8410e0de3482e814859427ce2155515ee3995480a2df4afce3bf0. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:50:32Z), 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/DEUE12170542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4a6cf5a886290b2c735fcd8b7de676809577488e1961252657732b0c921328. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:41:14Z), 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/DEUE12170547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48eb1c96f57a19c4b8f8b88cf02fc4f61580b400a36c9ad75fca94432c5938ab. 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/DEUE12170549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c04a16e95f5789b68679baeef71969a4a3ffafd27dd293c04aba5217103b141. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:56:42Z), 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/DEUE12168286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a73ffe14b2e5d34f9a5698526aaddd21037327ad4d46456fa7c6b31f70885d. 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/DEUE12168287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad1ad52708ded2e8ab7c3cc568e602ce58e9749f439f3e71e8351c6be37a9f8. 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/DEUE12168292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6955006f764d7b38e7ba407dc351ef1b04f27d855ac8638a0c8f0edfedbc51ea. 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/DEHC20851178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52604ae4e45532bdf3c815270bf8d6feedd35527e276d9cb6c23d8c27c6b264. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:46:47Z), 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/DEHC20851179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004dd076b4ac3593868e8b9435f2b6823f25c7ba1da0282324c9f8fedde2e125. 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/DEHC20851195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0310e8250df3e5fbe83870f071e4dbd954aa259056a4b9fd15e9fe8b24f33d. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:51Z), 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/DEHC20857535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e8c69425a0fe5d884886f92d32127d7512bf01a646a3e58e39f08f7638e775. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:36:27Z), 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/DEHC20857541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794fdcb88e90ce377179685f4e3f8ce3e8e13e7eba2899ef6fb98eb849039dc9. 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/DEHC20857542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38184c37cd1c785174fa0a9ac8bd1389556c5de4d90968343b05be97f997ab02. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/DEHC20901292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd3e47a2e65ebb98dcbda2a7ee22f60c4a5559c58cc8dded192e0dcdf011709. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T12:02:46Z), 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/DEHC20904575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa995a146cb19afe4f1502c30c0cbac1f2e02871734cf70b292e375bbe5ad8864. 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/DEHC20905556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72164c944a427b757d2b5d0845723506cdb0af21cd024c32fafe45d9a6f78008. 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/DEHC20905559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274e5d0e50cd05ddea1615721e5a1ca3007e5f30f6bbad4cda220b4fd7783448. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:45:58Z), 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/DEHC20905565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13e0daf9a6e33d1a1d8dd4dc6907283a7e04c4730bd2e6d38b7c768e2a0f189. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEHC20941746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9fcb6e78a0d3a377000dc9f8d1db83c464b32ac32baf19b17306ab4efe53b4. 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/DEHC20941747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17aa3b067323627d9e70229bd036a90edf82c7f9991da3ff3d86627c722f19a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:25:20Z), 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/DEHC20959128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11022169473389ad0989c0aa958852bb0d7031444b1a562bf1a020046ee97b54. 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/DEHC20976964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb169e1d128da5587b74c8fa542b1969709de38a801d9d8f63a50510e798539e. 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/DEHC20976966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e91a7c7279b17099829166ad9282ef7c5469fb9901f1dcfa461218499dc656. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:24:18Z), 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/DEHC20976967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605a6912863f6f4362c2ec070a94ece482f82276df106d94ee18def6b597e9ad. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:09:29Z), 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/DEHC20976976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9007b789cc94077efb99abadad9ec70fdb68ee434c95f599275d3ce3e1ac8b. 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/DEHC20976979.
Teil 2 - Folge 16: Der Sohn des Verderbens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1951bf92f2e4791dcd0a7f3cbe662aab9d79206ced901cd0e7d8e6eccdf32ae9. 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/DEHC20979864.
Teil 5 - Folge 16: Der Sohn des Verderbens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e56c0b506af4e46393880f4447776a619e9faf0dfc5d125e9f929f5ee2869c3. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:33:54Z), 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/DEHC20979867.
Teil 8 - Folge 16: Der Sohn des Verderbens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d522ecc292e207ead8db3d5356635c3147563a33481546e68fc6a67c31baef3. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/DEHC20979870.
Teil 12 - Folge 16: Der Sohn des Verderbens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec641916b83d9ed0f7499e9bd3299d9e02a33cb902fb8ce8ca19ae33e054a92. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:41:52Z), 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/DEHC20979874.
Teil 14 - Folge 16: Der Sohn des Verderbens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb959b11acee0bf8e23434e23698bdfc52905098ff260d9be2a363c45eec18e69. 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/DEHC20979876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf64caf1a2a39e5fecbe5c85477389ad0ed76bbd3498d52cf654664a2713809. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:33:02Z), 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/DEHC21015749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c46333fefbf6bcb142b2fc57cfc55eaf0015ec016e4d77fa9c2e66dbba088f7. 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/DEHC21015753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac173ad62f9a1e20b5c8e92ca651649cd12f432bb4c7272b72bc7a97eb62f30. 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/DEHC21015754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743fa1ab87a459c8406f081a30cffc3df226f4974463612dbb166d86ec2c8c01. 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/DEHC21015756.