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 0xca871332d53d5de42f8c7696f5283482f9c29599952ab77bc3269a3fc562c8dc. 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/e30b34e8-2626-4414-be76-3882382678a9.json and https://artists.proofprofile.net/proofs/artist/e30b34e8-2626-4414-be76-3882382678a9.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 0x70cde2d4737ab3b8246e7003f8b9d335107058877800ba1ff2d9459b01a63ed8. 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/US38Y2420952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d312654ca2965c0546a68a5f60992d26b16f090593afc3f424a556d68ca17b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US38Y2422150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a54f5e90120e953ee075a3dfbd6ca949d8d744382a5ea838b8c9da97b99bdc. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/US38Y2429107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84687540c6d758a97bd76105a6a0f31a6048d5d7370b04f6fa0f44aa41327d1. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/US38Y2431507.
Om Gan Ganpataye Namah Mantras 108 Times
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d4a2f9876f42425d8bfae4ab02ec286c1cf1f9ba9484930709bba5410a5a2b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/US38Y2433624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d057d46faa2bd516d5399924765c5306b0585db9c48bf71c6bc66d2ff71e553. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/US38Y2500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f299d8537a1fdf9b1b5ffb63f5c925459304ae043ffd7f50ef7ba441bc89727. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/US38Y2501896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab32c762c0d77385ea3ba24b715c9630b310ebcc336c4fc8aa6a1e61dfeae2a. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/US38Y2503486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a2a50a291dc63d39f06a30da975c65b37430473c8f263c9ef7854219469ba3. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US38Y2507149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb858d4cd1365a9446ee9584efc1b60fe9a54f36524e40a9b4858ad67bdde0e4b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US38Y2510383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c72e072f8e28e916f401fcc29f80ef991c78a77daa5f5926a625fabd58052d. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/US38Y2510491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13488e6203dc24aa7748561c92b8808cb83a4a0eabd4ec378ee59f876831221c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/US38Y2514469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7752282c79a85ef6e962eb54b1452b5dc54716bd840b97337906932567ae45. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US38Y2523730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6887fbcfd4029aa5e167325d9ac7245c89beb9f596c55eea7a966b60cc3ebb05. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/US38Y2527293.