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 0x1baea8ed0099f638e56bce290c6ffadc2627ec96b93804fa8b7d43eab20d5cfa. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/901ad536-dfd3-436e-a551-6a21f8c9352b.json and https://artists.proofprofile.net/proofs/artist/901ad536-dfd3-436e-a551-6a21f8c9352b.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 0x8775bf1cc9121779349b74d7e58572a3cc1fefc38610dd1c8a9b76a10e2309c3. 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/DEPQ62301353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638ec47ac80d9cd63bf78c95fcd4d78211f972d8952af218897dc9c5bdade0c2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEPQ62301355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae98c1bf5169bda835fd9e18770152f347e9c883543ad45f4d35f81d5e213756. 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/DEPQ62401472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffa80d2c50277ab7ab44bdf21454b2820b2ecda85cf402f16cd275563777f7b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEPQ62401473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2116399f462e14610708594972486878aee7afc10c4a0e5dc409fee7a597ebc4. 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/DEPQ62301398.
In a Different World (Thea & Schtu Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bf1460dfdda69eedbcfc45c451891ae6d97a03d620ee3321d2476f8ae71ee4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPQ62301331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37452c2e9dcee08ef6490cc94b52660d6810279eab1d4fe1fed84a4763edaba0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US83Z2217176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6723ee841f92f001dbd53a9615efd4e5921a39ff68b604ea2d36f7f22d999530. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU672201516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bf0d787243922fcd5f307f14f8e374d6cb4ffce720b69579e0e98ce3b8e508. 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/DEU672201521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd687b00483e617660a1d587cbe72380d1f2bb4790ff416726ab8fa6f9ef467. 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/DEH742304370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9afec8dfcbca1a6b3873a91665c278d65b74af246de8e454f84f17e757a26d6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEH742304371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2423cbe8c39cb40472af6b2a85eedb9fbba78c19bc924f28387f7b9c731a299f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEH742304376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15703a60b0d251035e5f2b83b1f1b8511dd64c4eacfc75de62dabd79a83d1d68. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2221213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806c31dc5f401ca2bf3b34bd7f249e1454aeee7cb35ed310394f7e804cb4a091. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2471130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fe1f44670e5a3cf3f87daba63311ccb7e683ec2dd4f9471e3db61e49401c0e. 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/DEY472179135.
You Are Music, We Are One Presented by Überhaupt & Außerdem (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd17a55c14f79bcb57c93534bc9baa793509f435e3702eb4e5eb353660867fdd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2326615.
A Great Ball of Light (Thea & Schtu Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8bd0df94be280d699511c6e3a18cdb1941cd199495f6eefb8aac1f4c9c9134. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2410691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe221ba5bfde8a871b90677349ef9fed92acdb16fcebc43d6aa114f1c4f0ef0da. 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/US83Z2410690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8bd0df94be280d699511c6e3a18cdb1941cd199495f6eefb8aac1f4c9c9134. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2410691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc026b837b2efd0dd55e5431748d3f694bcbc066a974d860cfd72beb9dd70f566. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DETB32400704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd67ec846ed8763935df50d865231b0796d209d956cf18208087be01bd8477a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DETB32400709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c4b858af595e2917310961ec8fece7c698cef83aba3982eb8b0cd253ff87c0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DETB32400710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162e310f762c360ed7df5be2d855cbfb85c195d30baf606b734c82fad7208cd9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2335599.
You Are Music, We Are One Presented by Überhaupt & Außerdem