An entity is something that exists as itself. It does not need to be of material existence. In particular, abstractions and legal fictions are usually regarded as entities. In general, there is also n
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 0xc8207671fcb03618edf95b8672c17ca29caacd69ac96410dcec7ed3c4dc42872. 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/89ccb35f-9203-404c-ad93-115c66670b87.json and https://artists.proofprofile.net/proofs/artist/89ccb35f-9203-404c-ad93-115c66670b87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hardcore Heaven Vol. 6 (Mixed by Fracus & Darwin, Macks Wolf & Jakka-B)
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 0x8cb017a4b62e2056ba6f6f4e5ef5e8938b23d64b6eb6ee774b9aa0e53cde82d0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2056562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880e3061640ea3c505b38af38ca3eea2ad694908888759f9d85983178fbb95b1. 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/GBKQU2056589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1456ccfdd56556c91abd95159d73baf6d0788e4b097e96e7d133f5fc280a6e. 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/GBLV62418788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6eac16f8379186f869d3bdefbb2677147b8d988417dd65679b00d70f2ef025. 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/GBLV62418789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c5cea7ab8f90dc25b3a37bf36dbde930caf59679626a834bc856feabacc24b. 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/GBKQU1456371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb42daaf0b3e622b0d4df18c9f8c00c54993812dc83b15ede7d5c33dfea14ee. 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/GBKQU1456372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d560d57e4b14db5b7d06786b1204617ec3a3f1c93124fa0d74b208d35f4db58. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU1456373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ef502f460e20aa5d77bf980ed56affdff2886ddbda5de5d2da2a7cfe9c9e14. 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/GBKQU1456374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14ea68123dfceb3c7d19266948013e907f53d0090b53f1917404df165689383. 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/GBKQU1456375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2eee95857111a68357e9a784fe44c02714744462731ba1c9ebd889c7bc04a0. 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/GBKQU1456376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7e86b313980de8802a2c4d40f2d1fb1fafaa8700ce23c56c687f8105338da1. 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/GBTWT0900646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724f8561b324ece622fce190ca4d8610dbb59837762948a4653d79bce5655c61. 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/GBKQU1456377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409bbb1e98dad08fd5349f8c34f716ec411807faea0e9291c9d280bdbd002ad8. 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/GBKQU1456379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f887c6f44f1916828dec51f58c0f6f08b255a89574676c834157ccbfdc56470. 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/GBKQU1456380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7df8231e62e02ffc9989ec8874ffac8a7245916133ca729a1b7eeedccbf6706. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBKQU1456382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0d5f0b87312acfed3e2ef3b050b55c370c53e61a48964b24db0d2eca463cca. 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/GBKQU1456383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674b8b5f44a131c32b6dde5b88f3f80b920a91fbf06af5873d49814eaf40228f. 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/GBKQU1456384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cadd9c9d00ba3a01b0d657c1b84b583e0cb021f592e729240d09cadcf8c379. 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/GBKQU1456394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4789be56758439416d78d727c36312f39354c795682792ed52f6dde183dd3a. 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/GBKQU1456396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3563a1f0b5011bfe3f4c6b1521bbfee30031b5903c32da759aed9e96e53ddb07. 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/GBKQU1456401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90395faa51bc9aa7dc781d137416487952467033171065d23f8822ef3df67a89. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU1456406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a92edf4b77f79d0c59650f7fcada7ee6cec9f26677d4d38e5f7df285a69a5c. 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/GBKQU1456410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebba7d7e603b59455b401e66660327aa043eab43d9c23d770630f9d8118b746. 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/GBPSX1000238.