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 0x835f6faccf2be8929db08f405ea89cefdaa2b8d9dc2aa90d2d66987770fe4e98. 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/b626904f-5c9d-4101-91e2-84a6e9e07924.json and https://artists.proofprofile.net/proofs/artist/b626904f-5c9d-4101-91e2-84a6e9e07924.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 0x7d88976abe8f71b3086648e403057b3c7149f5e87fdbfdf554bfdf6b603dc4f4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ121750815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d40bf1644970b144335ec098a95a86a2819a9370af8262cfc457046d0aa1d29. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWS51800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26836e2fa879c742aa33a1230f9a3bb52c1d7d988e69be5f2427de7f7f5ce743. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/DEWS51900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc40dc43ce72b688c150b98b583aeace2a4d1a9d63674186c4e621f3eb23564. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T11:01:03Z), 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/DEA811900613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb410add8e743116a21710575ad9e3c5a205fa80e1991a57798984ab2cec89a69. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:32:11Z), 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/DEA812000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51af2a0fb84afdef794f724df3615e34b279fb352d113d723d9305a5309c7b00. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:07:10Z), 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/DEA812000490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa346ab8a6a6ebef022f0968a98bce6c80852846c3478e7155deb984e20f7c7b9. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/ESA012165468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea2ae2eaf8c9863aeff6cfe7e8a4e4cba46561479a08331c98003015549dab0. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:48:55Z), 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/ESA011535267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d73c51718f1b39762991c966f080e59e1016772b30c31fd4fe8f8e01570a76. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GX4LG2100277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dad3427f7b17df16cd083d930210d977c2783f631586c2960ddbf6dadd45ffc. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX4LG2100415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c1414ac66daee9be4931cbe41a5e8aac410b33d54d0140e754a304bc00e528. 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/CH7812361345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb8a8035104cbe2aa9dade6cf4cfe1885f43ff8ce4d27c4eaef9afc76cd0505. 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/CH7812363426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90b1b6b3d5dc539d5ca98979f6c98d8ee876ca1fb61a3a5dc993e15ea0a01a0. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/CH7812406415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe6b8d0efc0dac48151735fcf5c7585e35dfded504faa660c38816efc5703b1. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/CH7812406416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb8a8035104cbe2aa9dade6cf4cfe1885f43ff8ce4d27c4eaef9afc76cd0505. 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/CH7812363426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0798743cab22d7068e8b95c6c09a1c5f280283d9ae289cd019e43e2aaed44495. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/CH7812406421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f9b1a90c0003360b178098c09af1e472c24b819e7b327e9ae2969b7cf427d3. 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/DEBL62500005.
Spuk unterm Riesenrad (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ac90764dcc6ce135463544cff4686047bb44f96ef59e06659c477daa5d8624. 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/DESQ42300606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96ab3ab459ff6bf858d9eb35b005b3814792c1cc6c0bc8fd6101329f43d3d0e. 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/DESQ42300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd5a3c99c31a2d3a95987355981a29db4620179eb53e7bda672a96f20cb3265. 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/DESQ42300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe4653694dab65a33b1a6f34f1739b8546ccf660e113b7faa3499e0b2698398. 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/DEBN22000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc24b04305e6842bdfd90dafbc632f32022f20115dabb8084a0124a6a5ee5b4. 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/DELJ82077333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffd079fec09562fa7bdbeb7667f12e52f6c52920c396f079cfe6fdf4d5a4c59. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZHN61931717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dab4f42447dd81796f68057c0aaedd0e5c87104d87faece66200e2b49aaf59. 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/DETO32100452.