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 0x160ae96a81d17eadec743c5d004289ed05c0eb3d14014b3b732046b03b9faa5a. 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/3dcc9977-3b11-48a5-a3c0-790c7f2685ff.json and https://artists.proofprofile.net/proofs/artist/3dcc9977-3b11-48a5-a3c0-790c7f2685ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Imakalil Neeye (From "Rahel Makan Kora")
Little Hearts (Original Motion Picture Soundtrack)
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 0xdac8ff615493223f32a28256547a47d075ce96c11fb06e045752cccf0040e2a9. 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/INS172400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bff1e0772a6ac56330a51bac97b63964248463cef09c44db6057f5640aae4e. 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/INS172401995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc965e0eef6966324e04de42fbd33c724b7790db0fffbcb3b9454818ef726d98. 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/INS172404823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ebf217e88ec66fbbf961fb17ecd395fa03cb70a433f186a62108c6299b1a3a. 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/INS172404824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64d71c41b3c57459c9f15235dd70268606bc592ded7554992ae3b0b6a58983c. 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/INS172404825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb9577a195e7e1582dc8d1c30bf07318c211393d2fed00d7826cf20e59b6da7. 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/INS172404826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d15c5eec919b5d2aa1972f5782a9a3e4b71a9cf954c36f86b4d2f35c6ae1f2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INE130303729.
Pennenthoru Pennanu - From "Dear Vaappi"
Pennenthoru Pennanu (From "Dear Vaappi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610a025041283759d3f5eb532a3912c43d2c056a6cbba182b8d085978310c37c. 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/INM812300005.
Alare (From "Member Rameshan 9aam Ward")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7501b744624e966ea352308dec2688d01e394fcf5980c77dd2b6179b615245. 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/INM812100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7501b744624e966ea352308dec2688d01e394fcf5980c77dd2b6179b615245. 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/INM812100021.
Angoonnengandoru - From "Rahel Makan Kora"
Angoonnengandoru (From "Rahel Makan Kora")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4ccb2b57d5a204852a0dcea77b0934a9fdc47e4516f9e629338a86dd3f3006. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/INM812300055.
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 0xdc3c60a4749483d464216b815b6cfa076802cd8c045aecf4ce92c8c924d53cd1. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/INM812200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f3a5d77ba1c7379ceeaac641039763d6f834f5c92160b8fbf0e64222c42fe2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INM812200052.