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 0xb6078901570823a4fc2afd11671d0fc07a6b7e3400a21caec9c8ee864d457388. 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/8d8cc16e-704d-461e-89a7-c45b5573794e.json and https://artists.proofprofile.net/proofs/artist/8d8cc16e-704d-461e-89a7-c45b5573794e.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 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 0xee4b52979b5c3e93c3763bc5ccd1d8e16192b262afc44d8a7fc21a200fa72478. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/DEC739000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fca41b4e890e933614a0fee48977adf6ca8bada655f00377e7ba2b7bbec08d. 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/DEC739000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e417bd29784b767c77888d5b6436168c4c665542360af2be84d97eac50a1886. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/DEC739000007.
Ich fange Deine Tränen mit meinem Herzen auf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d09912722a0458d1db7f2ff15532c19823d0c760b48fec49c8a43b448d7f867. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEC738900077.
Itsy Bitsy Teenie Weenie Honolulu Strandbikini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2829960d2d1225251c70568b5c12609e27d3045b7f140cb6bc15aea270e21fae. 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/DEQS91400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3494601fe543a28a9cd70291766da2e861029e47799b5895805ba2ceff8add. 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/DEQS91400271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82579385d36805e8f04ae0bb3912da00e3ce19e916e8b7ed3f2384cf9515b172. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DEQS91400262.
Da sprach der alte Häuptling der Indianer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fce143c2bc4fdf183157e32095c8ecd95ef448b9a85aeb1f976103265e5ab6. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/DEQS91400270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3494601fe543a28a9cd70291766da2e861029e47799b5895805ba2ceff8add. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DEQS91400271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f82fa385e4ad26c816b68ec6977b7e75d226f6b15528a7206a29203273c354a. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/DEC709100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45fbde25e481293df2013ea5732c87ca3a14f4a0bd00579eb10bcd9611dfd57. 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/DEC739100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cda240c509cfe6c2e4de1dcf9fbdb19b811f2081bd6020b61d5064a514bef65. 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/DEC739100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd864605c85f92147ae8a88fbe3d402e8ded28c8028a33101a37a17e74daedbf. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/DEC739100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4411c5f465787ba203bd976cef543dcaa2e7f6be8820aef144c8df720c69dc7. 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/DEC739400353.
Hohe Tannen/Hoch auf dem gelben Wagen/Rosamunde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3261b9f741c585f7b556375151885dee62e16ccbc6bab3e3d5da107bb67eaed. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEC739700517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4967c1911d520b576cd7be6540ccf478e9b527fb666bb5e84fc4c67368723b86. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/DEC739700527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9f824cb547922511a17f833360806cb7a165efc9f9757614de6f0dab5b74d5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEC739700533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379342fcc3d311b351581cdb8f04cf6ab305dae0167cd4e85f83e613319dfcb5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEC738900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109d618e9e19ba372c6a239fae09cab8be39025d48ea898d138da8480af296fb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/DEC739700532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c5d057cf11ef119088bc49dcdcb73126ddbe1b9e76b127836e65d4b0139a48. 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/DEC739700535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379342fcc3d311b351581cdb8f04cf6ab305dae0167cd4e85f83e613319dfcb5. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DEC738900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03eff7de73f54e96be1adf0eaf2cf270374b22b0080f5722b43c1ed95da2364. 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/DEC739400304.
Die Fischerin vom Bodensee - Party-Single-Mix
Schlager Top 50 - The Very Best Of German Schlager!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32f73cc0e27f0461c5a71dbe658af58048981c2b160078000c3041251bd7c3b. 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/DEZ601105075.