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 0xe9173775f1c640c35941c850ee359d7efc607cb1f36be37e23ed4fecb4decfae. 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/947efaa6-dac1-4b8e-a683-6fbbf2507fb2.json and https://artists.proofprofile.net/proofs/artist/947efaa6-dac1-4b8e-a683-6fbbf2507fb2.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 0x5a3f71ab1598459444556518a7788b63fefebb8e0e552c254ca975930e8d5a69. 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/DEN062300570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a826a41d699ccdec9e17b37dd6e3a0854933f4ee0a2cdbc20bb524c4332d0fa. 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/DEPI82204934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf03dedae45a9a8d945afbb19a4be5e603b5f03eeeeca53535eca34ad6a7b8e. 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/BEIW12401005.
Wackelkontakt (HBz x Luca-Dante Spadafora Remix)
Wackelkontakt - HBz x Luca-Dante Spadafora Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d46ea171b73524d2ff209056d0a4b0943171f4b01618472b45ed93a2890006. 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/DEW242500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f18b81f7b69ce9b5980e747c3e8cbff36a3f90f4d05f22ac32220c7d47079de. 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/DEW242400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678d0d3346727631ad25690b23d28d4c25b930f0b0910093cba1631f2c199b19. 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/QZDA42245286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164314d7b9643a08394efec0248b5fdf63572e5a000c2d10155aa12e6282fc0b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DECE72201423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dfe2e7776a1001e1cf6b2af8e5f8515cbaf5f707815f693de5246bee620d32. 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/DECE72108135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ec12a22a3ce0f297a2596543990731b3489697d40344c6324e3f3712494373. 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/DEVX52400214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43b41529a18088469af7cf764f0266772fe9bf76715662ddb69c58f584dc5c8. 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/DEUM72405924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac9c9e6426d9c71b300d9344be8e2ced4cfe1fbcf230acfa384af165084bb0d. 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/FRX282397155.
No Hard Feelings (feat. ALOTT, Anna Grey, Averro, Dario Rodriguez, HBz, Leony, NOØN, Sofía Martín, The Holy Santa Barbara, Tiscore & Y3LLO KOALA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1ae6eab81df1dc04c72d0612cd5956c8d572f6a5a8f15b6d8b606b3829a3eb. 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/DEKF22200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43b41529a18088469af7cf764f0266772fe9bf76715662ddb69c58f584dc5c8. 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/DEUM72405924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ed53f8fc7977b8ac85ffc35e794cc4b8999e7a7e01e6b99f936813fe6a9c59. 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/DECE72302362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0da0783824e5fe97439b71ac9ee5ddc22f73c0e2ac164ca1953b0864c89dba. 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/DEUM72004795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8ea60102a003ef19fc352d9a109c4d44d55d3f674439285fd0541df6a01f9e. 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/DEQ022273091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8ea60102a003ef19fc352d9a109c4d44d55d3f674439285fd0541df6a01f9e. 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/DEQ022273091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ec12a22a3ce0f297a2596543990731b3489697d40344c6324e3f3712494373. 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/DEVX52400214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b4fd1f10ccd940dfaae2d5e4324751cd9208c1c4919a33ab74e7600e31b756. 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/DEVX52400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765244e80e58158583ff8d6cb4a1716cb263f67293140e177e42f98377950682. 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/DEVX52400059.