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 0xbc3474481986beb7c8687a6476eaa0769320ef283f9767536faab873f5c70f04. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/664e0811-d5f2-4ee6-9f04-bce4f0ceb85a.json and https://artists.proofprofile.net/proofs/artist/664e0811-d5f2-4ee6-9f04-bce4f0ceb85a.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 0x6aee267d6b83b723ce6ab578ceefba3bc668f604cb6a7c3f0d8c76e854b64c9e. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/INS182401325.
Mann Kyun Behka Ja Raha Hai (Male Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743a1013355f8a830b041861a306292ce0f7f09fa44f497b39f1ee37da30cfbd. 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/INUM72400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df19c99c16c96467cf1b3d76ef6fda8b4d1e700b1f439372c544c24efcde5bf. 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/INS182301441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6eaa76cbe9a7d593ea3302a84d5e520d1fafa9255dca5ad5e397a3ab293221. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FRX872371825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ff2fd11f0976ea144e64d8d0fae9eedd2b5a162c88aaac97a560389752902d. 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/INS182301442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d12ba125681f9f2a3c380e43ee2f0e2ae9902ef8bc1c975befe901b1ac7f1f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DGA082231793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0413bbc50949f5db127f8be9cba32971bcc456c2f8cc9a9a439644334f90ea56. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DGA052223838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e60cbbcb4fb72447155670a51cb37e4ca4dc1c6fbc27ee870af7f517c32899. 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/FR96X2265005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f46256149844e5824d5201374aecfb56389b62a55025687f85852ce00ba3b4. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/INZ031409520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea861e642ae394ec9782bff66ed7ae9f93c382cace4b81564de2404162e3ef2c. 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/FR2X42055060.
Jiilka (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857cd897ab50468971140331c132877dfd9e48ecae72432cd46e80f48df03005. 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/INZ031406753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007052a3b0b910854391b5b7f4001b5ccce285e75a5014d045a4ccefed75905c. 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/INH102315109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2156425787e73e7965283b3a460b01ad4aa620e4025496f53a293ea8b2b46f94. 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/INH102315108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5477f7c54503efa9ab0e9dca9bdbd905d6d7eba0c4caa655c61f105112002af1. 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/QZNWU2432304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8575510a431df672e350196ec7d45d3762f66bec3d08f568fe31945311faff35. 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/INH102400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22406f5f2e4352a78ef4844d59e25b937b24f2103affc0e4050e467c8af30e6f. 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/NLRD52325975.
Kya Hua Tera Wada (From "Hum Kisise Kum Naheen") [Chillwave]