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 0xc24f38603aad6ef311bfe30a97257ece91effd15b3bfc2353add141ae9f9902f. 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/60eb8585-34fc-48b8-a403-bd329cb734a8.json and https://artists.proofprofile.net/proofs/artist/60eb8585-34fc-48b8-a403-bd329cb734a8.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 0x1b6602606f21d87e0e261c2bb97ec91c49390334af749a432e93e335ffa237c7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/SEYOK1663915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536eb354d4a298e29e07b318fd1d1cfe7b82aa8a2bef2b20269f87658e4b6486. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SEYOK1666413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eea1c8e20087309cd91c8f2be17ce446cd012f9b3157b4451ec1641ccc5bf42. 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/SEYOK1666417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4b26dfb2c54529d32775be6fe5b28f8cfd7ea247807e2bacd7b100711bdb47. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/SEYOK1777253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73375365674b02b9910864de02390a6629d05dedb66e4bde19d408cc769eb33. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:53:08Z), 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/SEYOK1853867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ec29364e535ed4c30f70f148675c91501fe0a8fe2d24c817219130d961c76a. 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/SEYOK1853869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2a0c7eccc926dd1ec104650682a75bb860e083c80f288d006ab9159c1e8941. 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/SEYOK1853871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d127d4e0995b612944f6711c77781aaca9a93016bc5c3c9280071247644f82. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SEYOK1853872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f5ff7316dca1f46e33a782e0fde52ff50d2b4775c4ccc86416d5b80ba831b3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEYOK1853873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc48bd6c12a81fc637bd7b736456508beb332e79ebf912b10174b5ee3b74f531. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SEYOK1853875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd996a5828859dad7866e7bbb8767c78db12fcf51cb646f23f8a1c9eec66f0cf. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/SEYOK1910993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b570d598ae0e38e49be0137e8cd271a9f786d7d01ea53053646546ca447706. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:42:17Z), 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/SEYOK1911012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b50f77930bc74f99f6c224ff72175f025553a0c73bbeef0f452b545df4870dd. 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/SEYOK1911026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42584b1884ce55682bcb32242a9d1b625e43255ef1df9aa2b992d02b8f1e04b4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SEYOK2018294.
Marianne (Remastered / Bonus Track Edition)
Marianne (2021 Remaster / Bonus Track Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3df301fafbb7ecc5ba1db1b56f345e7cdb5cbfa0af4345a7b78c8a6702315b1. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/SEYOK2209265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9062679a869f401539d04fcd55ee356c9ef06373919b3d0270c238a7d37bdb4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:04:35Z), 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/SEYOK2204544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aff1017fa19c3a115868d3e715583ab1fe5bcd05ef5e62ae02c6a31488af966. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/SEYOK2212475.
Out of Touch / Cars Along the Interstate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ca92fa98875e9da83004fc74018379a957d5fb51a780a869293580fd5690ce. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZVEM2322732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fac9d70770a1a100aef121cd12ad20d7199c232c6a71deca187b8d1a9a617e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZVEM2334683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519ef840c4f6e84e98525de2ca17c113d16d8f9e60a7e08e63b6f9cf0f711092. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZVEM2347239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4e69befc70115af71e66cc3ea634286f9b648161c5740a7b9afc79f58c331e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZVEM2356666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6e8439c6f82256e8bd22afdceebb9c861f5f4f0be6744501416b0727a52b02. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZPEW2406466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601cd65911e5f565c94f20c2b5f8229a3b5b1e282ac3ae49180d4e9d325ae22a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TLVEM2455958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659f922e79408299d0bbf7e6f98a3b12a9b37c9cec20b3fa4124d7368c3f104b. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZVEM1811641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d1992f9cd7bb42b4ec7f78d306a14eff915034cff866bde3167eee5210136. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZPEW2405781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa02908134ea2c6991c8fee8d33f8d10280b4cd44dab47f2d9d40aec8001558. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZVEM1874991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6e8439c6f82256e8bd22afdceebb9c861f5f4f0be6744501416b0727a52b02. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZPEW2406466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1335080eba0902f22b997a387ea8ad35d0dc1f04ab3a142e00db2ab0c559c4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TLVEM2466374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5504c17f777d2284f145f0b495f948024d9bc5a85d3a8b1b0e5ea2f829af3a1e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TLVEM2484776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659f922e79408299d0bbf7e6f98a3b12a9b37c9cec20b3fa4124d7368c3f104b. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZVEM1811641.