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 0x9bd48e2391440e47fa41568dee4c64bdab04dd2977767106daa24fdad6f3c965. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10e49c3d-c41b-4cd7-9d53-22c43078d680.json and https://artists.proofprofile.net/proofs/artist/10e49c3d-c41b-4cd7-9d53-22c43078d680.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Levels of Perception (Re-Recorded in 2023 In The Netherlands)
Mvlti Dimensional - Re-Recorded in 2023 In The Netherlands
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 0x9bf03bbe713fc1ce9c9bd66342d2e3f7c04906928935b8272c93baf74b0f77f8. 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/PLC172400102.
Sinister - Re-Recorded in 2023 In The Netherlands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7214ea4fe089aa97ad6697213196ee88f2b7ed5a88657bcba5bb59a58666d637. 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/PLC172400104.
Deificvs - Re-Recorded in 2023 In The Netherlands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03c3bef3ca50ae87c52ce340050dd4454621e95b1723196ea6c7ed1b314b5a0. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/PLC172400109.
Sempiternvs - Re-Recorded in 2023 In The Netherlands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1cbcf14460e055d7fcc632399570f2b54c2576660a95215eae84b808c4a305. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PLC172400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519e5a642a71047f24063e05f9246631b1523264c9a9e7f21ad5f16a6f5b792e. 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/QM6MZ2176976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f683577ec7fb256cea024d4d9b79251a98201deab8bf4f22032e18989e1d2d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA329401580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac68f0e97b7cefd409dc49d93723954ca0a7355d36eb0a4f674861572917633d. 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/NLA329401640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b30d75b7b37ac59c7cc9f33b5658df75dea1fcb792b000b924968c3ea9f253. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLA320785354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dda430601e572134c0f1b73910c10e7b6e8a3e44ef3d0bb64ac520a52f087a. 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/NLA329401600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd312ef2e2514482b632a4a34c419e1f1d8357244c07abca7632423199a68dbbe. 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/NLA329401570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678492d942383e134c5428df64fd28c3fb35d751b7f82d549fe951cc32db5d9b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA329401550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab42ceb574bbe97db6c266d28b61a21d1ba21509faf8b842d802fb546ad7e0fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA320320349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8c331a83c7e621fa9bdfc837c4ce8ba675da4a7f8ba179a9d04a5d6c8e1ac7. 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/NLA320320353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678492d942383e134c5428df64fd28c3fb35d751b7f82d549fe951cc32db5d9b. 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/NLA329401550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dda430601e572134c0f1b73910c10e7b6e8a3e44ef3d0bb64ac520a52f087a. 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/NLA329401600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd312ef2e2514482b632a4a34c419e1f1d8357244c07abca7632423199a68dbbe. 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/NLA329401570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72687a0f6974538ad537b030ba7c48e8651c76fbc64251831f3837c64d82005. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLA329401630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e535152b81b8c0006c7daa3c29bfa8e9d18d545ee2d08bcc5c74b7d3374903. 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/NLA320320355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554590ca605c8a71d784b9001bb859a82f286132110c2522c637a23539733c5c. 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/NLA320320359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b30d75b7b37ac59c7cc9f33b5658df75dea1fcb792b000b924968c3ea9f253. 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/NLA320785354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac68f0e97b7cefd409dc49d93723954ca0a7355d36eb0a4f674861572917633d. 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/NLA329401640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d20db74c27cc6405abbb618e62fb86553c4c1bcc8dc2ef96c10624ed5445e5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA320320361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4fb97a35bf9cb3e988bafd0e291cf977df62a72016dd8aa7efbd4b801e9686. 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/GBADD1341902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e498b8c66bbba305f598b79235a8d837f85cdd2b8276d20b7b4156de0e00fc9. 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/GBADD1341904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb923251842fb6b73a683343ebb697a924718c605c8f0dded1dbd9abb848f2b74. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBADD1341905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3d49b1abf04917edeaf513e81cd00d82f670ecd60e4ecd520a5a31c148fe55. 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/GBADD1341908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f435e835f428ae136d401f60596514d81fe73b8907bdbb29a03d48f8ad000a. 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/GBADD1341909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969b33fbdb929ce85890d295b4f63e44b07fcf392beb701c307810923e881d2a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBADD1341910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95174b37add60997d72ab107df3975759193b435ed286417d85211c46a24760b. 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/NLB931100191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e05403e22eb60cd8f588d52ebf5b51572c4c3ee0b5711ac3de0d2b3bba529b1. 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/NLB931100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4facb194dddb97e51817b16831e37972e7ba787a001acb2a99d24286f1be9c3. 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/NLB931100196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b45ee240e99cb1a71908b7177d3ee4f8e02a0a5a1a9f6e7571bb9a8fa1671d. 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/NLB931100198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dd7eed4793a2ae510321e57643ee5e2f629289c4ca3b9fdf69e71e5bd3d3ed. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLB931100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d35dc0d82b04f61eba855e6a7c1bdccd9329149f58651ce3bb3365b9c5fb7d6. 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/NLB931100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f16f675cc5d2d69e97586e2e5b9e052ff1b8e143d530332e86edbbffe6896ae. 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/NLB930900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061e4e67a146a86ba30f504fdcad6e8a33a4024e189d5fd08925e352e466cddf. 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/NLB930900161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7731eca1c033c8bb7ac9ad2631bec514014305f6950d5a96fdb3f61b238a6f. 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/NLB930900166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03c88ec22b3a37ef80d2b1e68297ace2fc52399ba2216d54481e52c18347faf. 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/NLB930900167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bab7b03286920a8d6bd94357566ce968619db021d73c14977b59e987d3cf9e7. 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/NLB930900170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d3110bb3fffeefc7903448e9c75050a4cf764df23648f76178a20e02cb559f. 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/NLB930900173.