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 0x05c2cd812b6c80b0cef3d1195bb5a776b6be5e3532ca4eefade16cf158c0d383. 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/7c4bfb2d-dcdb-441f-a95b-4f8cf87b945d.json and https://artists.proofprofile.net/proofs/artist/7c4bfb2d-dcdb-441f-a95b-4f8cf87b945d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Absoluto guto (Meinem Gott vertraue ich gern)
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 0x1bf3f8cc0912fb9ac795d93332a54a382ad70cb9a3cd56a2dc9326c80d709258. 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/DEG551024101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef401e1b2cc7e335aea924eaee8d43f90804324a4c4ec3707639463c2cb129d. 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/DEG551024102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3c9f4ca68abea4e3adfb547a918358f17ddbd7547651d2394e386599a2ba12. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DEG551024105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b46029d33c6e891fa801e7d77f8b0b5d92c5ebaf3d86ea312d8ddaa681e11f. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/DEG551024106.
Superstar (Gott hat mich in sein Herz geschlossen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe081c3dcfea8b257952d85f399dd929f24bf619bdbdf05a34c2dcab426e9eaae. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEG551024107.
Segenslied (Der Vater im Himmel segne dich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f3b2407918c52b67b0fc499ea3b4234fcf8a90ae9887628f5bdbf58d4cc8d1. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), 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/DEG551024111.
Spar dir deine Sorgen (spezialo Bonus-Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e351282edf39f6b2db2ae299c42c985b5bfbe13b958e4a5aaf7d73707e2402. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/DEG551024112.
Alle einsteigen, anschnallen, los geht´s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9c3718041ba88d4bde05a3d8826e9d9d677bd3081aaffd88e805dfd122bcfd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:40:52Z), 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/DEG550959001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321e24c046867565b4237ad2bc102cef84f56efa27b060a73e8c15eee48c652d. 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/DEG550959004.
Hallo, ciao, ciao, guten Tag, moin, moin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c776e062bc34912f080ce461ac44fec6cfd70408024f7f3ff4cc9384227e62c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG551249001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54701aa57f64eb3d0cec363dede0b3fc2e8e988f86d0c97528893454a17b800. 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/DEG551249002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eef5ae26f77efeb5e0189ca5835960d09402df5b822e1d698740a11785e01f1. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEG551249012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e526fe6d8af6c477cf74b65fa9315a5f8a991236c0604d5ba0feddbdde032d3. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:58:24Z), 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/DEG551637004.
Sei mutig und stark (Je-dap-dap-dap-Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ad6d6d2a70f6d1791dbe40de680ff3c51b51ca609cef27039415cfa26c28de. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEG551637013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4301e6b4a3de05d67dc66476992c9459b573f2338675af57d39b5b8d3f35ad7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAF41900727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74df2a0c8ed4992de11ed16a0923075ed564550439984750735978c6c2627ab9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEAF41900728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7004d95b4b85c27c4feecab9770c84fe031dd3dff705386ff20ff6a30799b946. 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/DEAF41900729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547e1958f552c438d486dd8b18a1ed2fa8f5ac24c01be19d32d51aaa4438d339. 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/DEAF41900730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df2abf7085bd4cb0b1585c166e81510b5ef597cd025ac855474f210b336fdba. 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/DEAF41900731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf989d2b1ce5b5a77c7c96a5399f207dd53b1effdd0dfbb062b3455c3303131b5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:48:51Z), 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/DEAF41900732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74df2a0c8ed4992de11ed16a0923075ed564550439984750735978c6c2627ab9. 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/DEAF41900728.