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 0x4e4e6d82ab9f4f4cd243ccc4230a27a16c05050f083c4da4a8b5ae9784f58c65. 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/6c4c33b9-4d84-4518-865f-d1e02521b52d.json and https://artists.proofprofile.net/proofs/artist/6c4c33b9-4d84-4518-865f-d1e02521b52d.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 0xa381514225953a0f06f55039abeb04f5008be1e96f640ee4b68c48c042ce0667. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/NLH837187001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0a26e6b063bb7bbc91d371287b9833390ba7120b2ff382ddd6e6d2caba8225. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/NLH837187003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80255a521c0f80c98297dc8be6211ca2a519ef2e352bd87609249a3e317d948. 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/NLH837187004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338f210cc2582169dff7810f4307028753c5c7963356a9edb834717acc714a34. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLH837187006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cff2783558c218c4602335b14965b0421313e5cc60317ee54c8341649a131c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLH837187008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c8c94b6b7452ee6eec865c2af1267bfcc42ae18dd465ca7e86e4b3ed1f57d2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLH837187011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2032558021305b1800ce0d9f37618623d2e6e4781262d6940107a0a220e526fe. 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/NLH837187012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748b4c35bcc5674f53935a7978376420b1b206cb86fb8538ff608d23731c8def. 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/NLH837187013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdedbb57a7a29de98368debe7a5c28b0699910feca0cc7b94eec56fd0b26d598. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLH837416016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ca2baffe4fe324f90bc31a6573780e98359f7de35075d513227085777aeed6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLW2R1824910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456e7c74aec4267226eb6b8f5d0fe4f98b6e53053f001957d0fc10fa6374c140. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLW2R1824885.
Rode rozen gaf jij aan mij en 15 andere grote hits!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5efc6bd7b18ed45b5f7f1e14e86ce2819691e718775aed5ca01b3a70c9500c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/NLA639090006.
Rode rozen gaf jij aan mij en 15 andere grote hits !
Voor en met vrienden! Deel 1 (Piratentip!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9475d52d9a2c8a79edffe5ada3dda568018c313176b0d23fddab76145e87dfe. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLA639999013.
Voor en met vrienden ! Deel 1 (Piratentip !)
Voor en met vrienden ! Deel 2 (Piratentip !)
Voor en met vrienden! Deel 2 (Piratentip!)
Voor en met vrienden! Deel 3 (Piratentip)
Voor en met vrienden ! Deel 3 (Piratentip)
Voor en met vrienden ! Deel 4 (Piratentip)
Voor en met vrienden! Deel 4 (Piratentip)