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 0xc844767b40fdddaee06cd23b6272bba49c427542a54fd2f9df403915082aa343. 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/8002a4e1-0203-4788-a009-f9b155f00fdc.json and https://artists.proofprofile.net/proofs/artist/8002a4e1-0203-4788-a009-f9b155f00fdc.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 0x4c8ec9e8e64ebbdb261893c5a7fa1450949a900c33b8300615638fe1164f06a7. 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/QZTB42227091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac38910c0030e5659b1998063f7d601279d042488748b50d4b2fd559d2347bb. 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/QZTB42227092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cd8f6e1db1ca202c88e4c70e91ac09e8cc7fd628dbc96215a1c427cc794855. 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/QZTB42227093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18aa9ba827040107d72049ab6373d8d29319d8e2a94d3aeb618a482ed38c2a3. 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/QZTAZ2292652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba1773f311bd343fdf8e85b5e1c79eb5c04972ebdc2365e83055bef60262f6e. 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/QZTAZ2295459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec56362ab1fe5fd0d78b051cd5c0e6d2d9d39ddc627c50bdf233f99a9d721a3. 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/QZTB42227094.
Something's Breathing in the Hallway, I Live Alone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7cfb1097257b9381aeadbfe1d8b1bd82e6aa47b6954d884c40e9aad4a7a04d. 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/QZTB42227095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f1efbef4b5b3134a03a73d30c0fb20e0f27ad8ec12c173a8d857a659404d23. 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/QZTB42227096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe135dce53868355de456a94a618c758604ed703966bd18f9716f66dec646c2f4. 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/QZHNA2035985.
The Twin Courts of Faerie, and the Perils of Sidhe Ritual
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f499e6825c8c92f96b9a6f961c1a809992bb7d974329d8ba7db244992727b79. 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/QZTB42227097.
A Voyage Through River Styx (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2f082ddb7c061fdbec38ebd4c5217f3ed5d95d76f4dc41063eede6c4cfdd4e. 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/QZTB42227098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98db4625397bad1785a5a7a6099592621333580bb665aa1b9e806a6e4b57c67. 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/QZTB42227101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a60591c953a31786fa7f2a1578643392ed67688f15b7d563331acbd036672b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZES91808508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15ca02e49aca2efef2585bc0d86e609fd41aa865540a3af412e23ed7f756daa. 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/QZES91808509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b69a288fc84a16f0aba874996df35a8a131bc8e074c7f990e1493f40163a2eb. 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/QZES91808510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8216b63fe4657d89ea34a9319563eca4a0a6adeb23e4f2be04bd8aa980e90c42. 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/QZES91808511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7431d04844798e49e09c67ceb4cbc3803c243861441a301ab9a03789d26453. 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/QZES91808512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e0da7d5e9f26272f76dd608cc57c291a9fef9c2f895f8efe048b6e1b452a6b. 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/QZES91808513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e52b3141d001ffdf7efab822f4aa05dd1a8ced0f2b3b774f372006061b010a1. 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/QZES91808514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b75b3ca5525b0b28fcfa27f70e761a3291fa18dd18511781aa71ea423c332d. 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/QZES91808515.
The Son of Perdition - Alternate Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6886e470d035bb5495dd6e7230df04285b93777dd175a8e75290ecf7a9801cda. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZES91808516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42b8e830035d9abc5fd646f6e544ff8b7951961f27cb53d46c04dd8cd0aae0d. 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/QZHN41911695.