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 0x825f26cd0d90cad406a6d1dba56ef69b2e3c36ab90d1a71d67a9eddd0ceae83c. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d518f3f-1fa4-4261-ae90-752e760169c0.json and https://artists.proofprofile.net/proofs/artist/9d518f3f-1fa4-4261-ae90-752e760169c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Børnemusik – De Bedste Børnesange Og Største Børnehits
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 0xc731582f9df24f00f335e2d80264d165a5e1e688f206fa618a3fa1dd062e25ca. 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/DKAZA2100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1939b46025d584064c572a8200f00d0bb587aa7cf5fede39c81bf63538b87eba. 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/DKAZA2100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff69ca7297d29eeb6ea307b8334e72d22a0a06ff025cf9464f8a6974e0df9014. 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/DKAZA2100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208b752538a8001d09dd5f6042aa08555a43dcc67412928ff3b4a1e0fde0dd93. 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/DKAZA2100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cc017801739f29baaba4dbb386e45550d487372d60a45236ffcbdea9289742. 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/DKAZA2100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a13df199bd4f105f2f910e4a45d0e6a5b4136cd2259d8665fa6dbbf87a6b22. 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/DKAZA2100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b44057e690313f0b4ddd871c8e98c35664a828940d53ae8b777d957127ece6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKAZA2100154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fd16c669db079d55000088e9d96f6054ebb21a3a66bf750f71b3b3dec7946f. 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/DKAZA2100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163e8723495544a24f050ee216520ba875a61e9cec5cda6c38994919330a306c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKAZA2100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe483fbcd1f693c115278964ee9cf6f14ee6b686ef877464b35815ab80f39ec9d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DKAZA2100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd8e785931f307da3765cbbb4187ef9faa873c5932a7b6b94c5b45e94339bd5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKAZA2100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c5654d53ed09146c450ff0c0d19505a854f57840e1c7c20a7b32f86963b3a2. 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/DKAZA2100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534caf36e5cad765a8fab4be4cb85236cd304e2e1b4ba587b7ad2bf24280d37d. 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/DKAZA2100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7f90f36b165797e992f24ba23624d2c8208a79e92b80c66f2a799dcecc2db0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DKAZA2100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833ab37f32c7b51f695351682449599ba7019e6544ad4def40e0e9ecb351a773. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:57:56Z), 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/DKAZA2100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7f90f36b165797e992f24ba23624d2c8208a79e92b80c66f2a799dcecc2db0. 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/DKAZA2100162.