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 0x839d4ea31543973902061532060ac5fba2002302da8ca411145d17454bcaeff0. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5477224a-161a-4af7-8a89-9cc81729c53c.json and https://artists.proofprofile.net/proofs/artist/5477224a-161a-4af7-8a89-9cc81729c53c.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 0x27f6d27c9f3be155d149541a405488053697d58c6551838ce546cfba6642783d. 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/QZTV32416757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89204bc0f219fa1f18de51766e6580ea4d5c50e07009c4c49207d35d1bd8dae2. 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/GBKQU2348947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b57f724646b2a00c525ad1adae2ad2f7542412d62986623ebdff7c4add2de8. 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/QZ5FN2335173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9417e7afc8d7ec40c4f5a561f34a3048d30d9c8ca4b871454494fb547565fcb6. 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/QZ5FN2516681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f53a079b15dc09b3f76d1ac45d4627b807af58ff653b0f1885fbfea717f6247. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZEB2474158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd86b24ec77da4e1816f726829eac6cd998a8acc96f12ce5c2c59a845ea686bf. 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/QZZEC2424429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ec912680299ed86839655136d3496ca3af5fac5a874e5e54a6b893ea02aa25. 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/QZZ8B2412442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b052c61e6eeea7b9adb3857c842f79e0b912efab6ca635a20197fbc413f28e7. 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/GBKQU2485678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb5a34a602ed635685a6a27158f75f894a4a620d0fd0c6d565f8eecb0d14034. 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/QZZ8A2473670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02064eceaf209690f84ecec050fdf058a73a875bcda8abdcb7db7bff376acbd. 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/QZWV32466902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe375e1ddb8775918e1de314b45a5a97a0350b5e03030ca38633dcdd8a9c1cac4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZWDE2490135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccee73e38da3bcb308bcdb598930263a09329d646ec8da322ba773ff4926c714. 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/QZTV32417889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7aef5324f5c931f39b8887e6dd5e60068be0613f5f4436762e8abc58a2003d. 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/GBWUL2302920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8831c03b38db5dabdc9348a343c74a26338061547054239ae9bd7c081921388b. 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/GBKQU2168645.
Get Loose - The Brainkiller & Paket Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbb8387720b2bc75d0f96bd97dbe79fb6d82b7ff6287e5c4bb0eb179f533b48. 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/GBKQU2180193.
Re: Breakin' It Down - Huda Hudia & DJ30A vs Kuplay Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edc8e180326d318318547c594b27f73947c48897535284f8e5de798b9f7f335. 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/GBKQU2193575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0b6cdd5ea1ba95b496ff2e45105453277118071ce5d5441814f643f27146f0. 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/GBLV62106812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569fd806867e9110dd263ac2c9b8585266fc35b38528c91616cb617015fde9f4. 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/GBKQU2153000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7872e853db2b336b8b3cb526845c7f15cd7a67d3548d0eba3b5c521e260868f7. 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/QZWV32410802.