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 0xad0881b9f8968b28109793a7f5a99e06f4c848f70de96e7e21d0813e4d663e3b. 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/18c4a366-2285-458c-95a3-26d4b70893a2.json and https://artists.proofprofile.net/proofs/artist/18c4a366-2285-458c-95a3-26d4b70893a2.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 0xcd73867cad9e20b26b8c80809c328f3b2a6273ef93c354dbf8458367bab97c48. 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/GB2LD1700363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce70cfd8eb369282726f23e059c112be24ae997bd998ef92c52b7e21ae13db47. 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/GB2LD0902547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0c62bc1241aef573db62cc02b42cc90514338c277a930063660d307aa2a24b. 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/GB2LD0902400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41599b0bb1af0ed3304c2198a5916c4122e8de70d1a41d4375bee0877a18c742. 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/GB2LD0902042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cf066aa465c80858b049b3d525e32cc09c91586df65ed9e4f0f55bbfdd2507. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBSMU3951569.
Fuck Alle De Andre (feat. Jimilian & Alex Skrindo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5712cce4b2b77b4e2ee6304c855f101cd54e9a0d760226264a3fb108e7d46a3. 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/DKADG2300534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c941c67cd52620aa5d540e9fc72353886121daf8f94d7b847f6001fd5d6583. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GB2LD2310089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a4e47e047bf5928148a031fe4e99c0b1b8cd27b15c514bb229e17162b26bfa. 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/QMDA62186827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253011b04e32a8030134646d30e2f201b93dec7afbaea2f535f82337c20a46e5. 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/QMDA62109118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf652a27ffa3c1a82bd1b89ad75fb5be251fae108baa57038b1b4429774892806. 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/GB2LD2110220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e49022918804eb689c7bfc385525183c60b38efd80c77092906dd713a160f9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM4TW2103524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cf9c114cc42cbb49a1b8fc9c447bfb4c193980b697f0e24d205410a8165f5c. 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/QM6P42050399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1349a955afc772e8da89ef43a5d74e6d432f402e664ed784763b8ea9f55f5776. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM6MZ2099045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc13e5d3a0085a6ad0c9058df7d62c71de122feba91c7cbccd78973bc12111f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM4TX2076360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d5a43ff1ee6f2f9df239b0b8b4d0f699a72dbccb6d790e265e2dda991fd119. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM4TW2043782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f8a3ab186890202f8aeb3e90c28f4affc0e01ebf334c36aeb8fd2a91e27a2a. 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/QZ5FN1902788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8fd9aa76c2a2a1201b35056344f71cfa6099608026e6f61e4a2dcf99e33794. 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/GBSMU5504693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf88cdb17df2835a2f8b1b24dab41e5608c95a08f26b1e9e5c1ca90b8a587da. 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/GB2LD1800608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b1980baf034a5196a5b4cfee1ba0232885c9ec9bf6e6ab1f93ea4887a35dec. 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/GB2LD1700143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0d45800060eea0a481180372c171c3f59e14900cbe09c1420cfc287c51af5c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU3382338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544c6224888f18fb9725ca6a2e3be76a5c5be501404dca3d9ad631f7fffb9e3c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBSMU3019996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e417429ed5bed7abe3a0cb73609a524b83b7a64f33790c5c9c07163d573a4d. 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/GB2LD0902338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7752929c799a003ecdf17b072c983b004c907fdc75ab59d0c5f1d1d18e17a590. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU2658678.
Red Flags (feat. Alex Skrindo & Langhoff) - REMIX
Red Flags REMIX (feat. Alex Skrindo & Langhoff)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9c33dff057717d8c2227a3f6a9468657d96c6b89044f8d6ca774a25b10464f. 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/DKADG2300375.
Alone, Pt. II - Alex Skrindo & Sebastian Wibe Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81ba3ce87a1ccc6942407f0f0aabbdd6fdef3bbb44e9bc51d727d40263fb78f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NOG841907110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09052e9dbdddb78ce04f013b3296e63d912bb284c994b6cd4d11d1f037a097af. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCACL1624711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e417429ed5bed7abe3a0cb73609a524b83b7a64f33790c5c9c07163d573a4d. 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/GB2LD0902338.