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 0x815cd53967f61183edcfffe7df4c039b352774c0e7243cdfddf200a5027886bb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bacb5ee2-70b5-4e55-9ec2-9d12d6e89f06.json and https://artists.proofprofile.net/proofs/artist/bacb5ee2-70b5-4e55-9ec2-9d12d6e89f06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Make wanna cash (feat. Ganeesha & Benjamin)
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 0x1d85c3e8347e15d96ccee614efc527216cedb38852e440366a831d5f4f3407b8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPL2048956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f81444100c20ab4934926baf29815c2da72a9d5db2f57025dc8d9fecef13238. 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/TCJPO2195541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6358ee5f318ebd8481eb67a576f281b5b432e9049b237cb9c74dd82f861154b. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/TCJPO2195548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa780df946de265c09b7e3c2b5fa666628404c1ea89ac088eadda190891821d39. 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/TCJPO2195550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51599ebf1a3506626dbe06673b81b4d63f50048721492efc1d22d83b7c3a8696. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCJPO2195546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6358ee5f318ebd8481eb67a576f281b5b432e9049b237cb9c74dd82f861154b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/TCJPO2195548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bf119a41fb2fa7ccb598570f39d3e766f128efcdea9f1958959639e090de09. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/TCJPO2195551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d04ebaa56247e17790968e40644cf87fa1ca9c5652d4637d8ec46a7984bff8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPO2195558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9e065b2dab2432f9e71e23d3a19ae07c848e56c145870d2ceedcb9d19d9034. 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/TCJPP2179443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392bd1e49ae6abff62ee775277f6b3e8c1d25059a2e3268b0e2a8a1dced1d44e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/TCJPQ2152827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d90fa64bc71e0cd3abca6384ce4faddf23b50d4d04388b69027f16cfdd0c05. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/TCJPQ2152799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e81c46597359ee739490ef97d8d7b994fa685fc29c0d4a5291866956d01df2d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TCJPQ2152806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf74e36408099161161d70a750cbfdb864fa4b75d3f9ff4d28670ad901149e3. 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/TCJPQ2152814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bd1ce3b2bf345fa3f20d28f69d4d76d96a193ad12fc6a9efd0f64d62eb73d0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPS2281421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee0a7b37d8dea015c12ee7318391801023ec2a4cc5b4804deaabf83a9556391. 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/TCJPS2281424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5190908cc8acc73cda904ac8116f7d9b70cce19a363f3490e168f423c7ccf9fd. 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/TCJPV2370605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7dcaeace4592516ab6cbf965d81886fe72ed37317688bf5bb338dd7facd6ca. 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/TCJPN2036275.