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 0x828a5d7e73bec2d014d797d1d5b68df1f080d3f66bd4182d778c838fdd0277b8. 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/441a424c-bf5f-4db9-bd93-69c4601b3721.json and https://artists.proofprofile.net/proofs/artist/441a424c-bf5f-4db9-bd93-69c4601b3721.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 0x4323855409a02fcb47e676a460540efd28e91b5133d1de5ba674dcad6e7bdc87. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GX3HH2288970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d1810c3f7351a74e0636e58db4bb20a7ac8f206113e4d8c4fc0929f5213f29. 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/GX4R52246212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8fe9e868cf5e799d80eeeb87c8991dc1113bf0e201e9a7a79ccb2a71fb2fb3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX89G2219584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d226e3ebda1c54da95eae2b0cf6d480e6121561e1c7bddf0834dee839c0894. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX38U2349717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2a728d8bacefa0be0631edc23e4a0736bb86c9ce8110290633b276dca15faf. 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/GX8LE2480426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13adfd059a79747b1245b5f8563730afb9e93afd53a95919fa7ac9d6e402389. 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/GX8LE2414441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78d98472c115682a39a1f2cb052853a025fe3dfbb381202908041a3a4fadb1d. 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/GX38U2439583.
The Business (Ozlig Remix) [Ozlig Techno Remix]
The Business (Ozlig Remix) - Ozlig Techno Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08728dd69d84bf7af40c2e2f714b9718ca254b553ebc1057c6011ea8b95af25a. 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/GX5MY2443874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27010c8a69f6689178b8b981d6b3a77fbbb5161ba876d671eb9fb3a67d87c068. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:11:08Z), 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/GX8LE2554283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dd7d5a0abb22e2cf14b5527b8c800767cbe06d229194c5d9119eaca483175d. 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/GX89G2429804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a80858a969047602ac3bee1d18277bc46b886eebf46ef9bd67fb7c282269eb8. 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/GX8LD2554231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613b28cac78e20656b39f65ea82f9d582a556155827dd878c21e671882153390. 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/GXESV2483665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0463fc649dfe7d28fe25b36f80a0070431f11e31706b509a650db9d7e688da. 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/GX4R52494602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f0f83c91366bd16c623b7c812d8f07b30013c9db3d70dbe28a1ef023fe13dd. 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/GX8KD2410056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab17781c04b833c0207d984e6d9cb49243371ad1a639fba0221022f7fa7b596. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GXBDS2446470.
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