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 0xfa6c69e8ffcff23e49646bceb86b9a810636d1819f3f6dc8a375fa75dad836c6. 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/443ed585-2ab4-4231-a337-80cf45b992d2.json and https://artists.proofprofile.net/proofs/artist/443ed585-2ab4-4231-a337-80cf45b992d2.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 0xa29556ac03787da32fe69e4f79e78b510a4d3d144d5ec63ab5edcd6d4453d4f5. 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/BE8LH2200181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92877d13dca23de7bc8992a1f74b980cb713acf46374c2bf155fa76a19b8b37. 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/NLT2H2300159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba9fe0a1f3c853d36e7689520b1ccb5c926562096fb93d40d38fcf482ed742f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NLT2H2300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b7ee51bfacc8a5e2795e992119d9eab5ae998c6d396b4444a8ee1272ccdfdd. 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/CAHQJ2371357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc9686ec314f4f9b311447c63c0003609841f7dc1a89462f1f2d8855f6661a6. 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/NLT2H2300373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd366e4947deecd9cae7a1a2b3e3fab86aac65d3d80a1ce1ffcf70c89c8796aa1. 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/NLT2H2300893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124c663d6d60cb56539e4b6f3f549ed0702e716022c73921b4be03518b23cb14. 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/NLT2H2300970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe83428961f0ac2ff06b963c7db3a13a8753473374855dc378ea2a8aa1e6d8c5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/NLT2H2301223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05281c8fb87eeade0d26945655c37b1d9fde71b1d9fc28f4d24f66d9b7de3fd. 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/NLT2H2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa7812929edbfc3f462764b5261bcce7aaf874995c5040d29140153251daf1c. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:40:01Z), 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/NLT2H2400241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93d81c6b4ca870c2ab7a57e474a77cf38fa3af8e83fa835c6e5cc65059b8ab5. 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/NLT2H2401036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59759bfe85aaa725e325b22fe0cf4c74e178967b3cb1d02046dfa14d1129a8d4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLT2H2401157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59759bfe85aaa725e325b22fe0cf4c74e178967b3cb1d02046dfa14d1129a8d4. 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/NLT2H2401157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b06a77b15a77bdab17a2fd38d8a291de8918db6f9d11a90ac8cc757ced1112a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/NLT2H2401353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0f1775d7d2d4da82c5a42701af36889c4cca4eb45778e7f086faaa187347bb. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/NLT2H2500408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dbeb2251ec912a918ca3b2aa6ec3b811ef594f4f20b5ad1a5c63939ccc6014. 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/BE8LH2200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3693bb54716e228eaadca6f833f06ee3d50e39416004f780441edc037167ff. 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/NLT2H2300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbc1c2458f300eed870ab35412c59207e60ac98a181909eeb7bf4a9a04f3b14. 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/NLT2H2300731.
Restaurant Lounge 2023 Vol. 1 Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dbeb2251ec912a918ca3b2aa6ec3b811ef594f4f20b5ad1a5c63939ccc6014. 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/BE8LH2200131.
Restaurant Lounge 2023 Vol. 2 Background Music