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 0x0eb78069b1b347a95867542d6890fdf8648441331220d75dd77428fecd2584e9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00e8d520-72c4-446a-b772-04db7b07cd41.json and https://artists.proofprofile.net/proofs/artist/00e8d520-72c4-446a-b772-04db7b07cd41.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 0x1524601d9e61989316749c19741da5eb4ad512d6e9bdc8c3711f9853046c55cb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAGC2266645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e373ee3ea686e16c3a4cdbb24f1e7289f37f0cd570bb896256c2e0e5afd8390. 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/ITGGO2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ca31a5489c305aaf5979f3a4cd64a7a81bf9dfe7081502403cf71dcdb1fd9d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITGGO2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c440ebe7e9898271b59ce4812c774e4cda08b00b3b0d7044ecfdcef8acc42e. 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/ITGGO2300024.
NVNSNP (feat. Sacky, Neima Ezza, Kilimoney, Keta, Nko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766fd872375eadbd3139f1547707ef8c9a2eca638a97bf527bff2918e46bfc7d. 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/ITGGO2200027.
GANGSTA (feat. Vale Pain, Neima Ezza, Sacky, Kilimoney, Nko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4bb701b7d796b84d6df12edfb243fd4b26cee720ee92207d6b361e8e673455. 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/ITGGO2200029.
SEVEN 7oo (feat. Rondodasosa, Sacky, Vale Pain, Neima Ezza, Kilimoney, Keta, Nko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdef6e8a6b55a46163bfa81b7d28a7f3158c9c3b77d3c2a5a65272bb1b8a5612. 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/ITGGO2000009.
BLINDO (feat. Neima Ezza, Kilimoney, Baby Gang, Sacky, Nko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d1a40ea119b7f4528b75751cd4bd9c63f2ce8f83adc559c02db5a047a90af7. 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/ITGGO2200033.
SKY (feat. Vale Pain, Neima Ezza, Kilimoney, Nko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cec26a849a045488e8269db89ce985d786628aa70c09b54202f18188668f9f2. 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/ITGGO2200037.
LUNEDÌ (feat. Rondodasosa, Vale Pain, Kilimoney, Nko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17168f894dc11726509428b5f7aee6bbe4e4547d9d9f07267398d2468a4bed29. 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/ITGGO2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c440ebe7e9898271b59ce4812c774e4cda08b00b3b0d7044ecfdcef8acc42e. 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/ITGGO2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c440ebe7e9898271b59ce4812c774e4cda08b00b3b0d7044ecfdcef8acc42e. 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/ITGGO2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf33671d06a96d68571db5e3bf0ae7aed6757f2941dcd591708b3130ba47f5a. 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/QMEU32118142.