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 0x5ad6b3772851cc59d2e194d9aa256e8d44a4ef6e5b8c2623896b753059a62ac2. 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/9bbbd1eb-7ed9-472d-be4c-db571e1811db.json and https://artists.proofprofile.net/proofs/artist/9bbbd1eb-7ed9-472d-be4c-db571e1811db.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 0xf82d25817872dc406e6961b135fb182c4bfce6c2c88f65b3f2fdec45a2315c59. 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/ES50A1200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c41d4cc1c4aac0db0c0de471fcd110fb566a17114bc3d3002f009b9f90b6b8. 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/ES50A1200623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc289f6bae7b04fa71b5f9859670b563adff002ba7190e533ab8f056a4f01bfab. 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/ES50A1200624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295f77e2ec282d9a2ac61e909e61821b3de2cadf3eb74f7bf7d92a4dbf088428. 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/ES50A1300428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4963fc5883722a6630d6340e36aed8efd2e589cd2b8d6ef4d8994db783456dd. 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/ES50A1300542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9584aed5d13328eccc41b9c7e6e046bb3b66ea486f79bd9f1c5b2a229afe6e06. 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/ES50A1300543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f4eefbb058e2ee8a4dd64900545548157c728c2bcbd8c046571a9ea45a6837. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/ES50A1400526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a844d826e22689a78ab16bb2f75b52ecaaeaea3e85af8958e4334041ad8d471. 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/ES50A1300426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276c4a2b0ec9a09f23dacdb443c2ae62cbb852c49d63d92a9cbfc230830febdb. 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/ES50A1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c3e2ffd1e9a6d0523ec90c979d8e936b9456e9dd261fd5a3a8386c8913e808. 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/ES50A1500514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9f796cf650f4e0b24b480f7ce88dd6b2ea267650cec4fed8f1d8c47dfb8acb. 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/ES50A1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7d0fafb3ee9772cebe59e3cbc374f17eb24e72cb32155e4c39ded81045e6ec. 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/ES50A1600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88402401ceb1e6af9cb86d4a48b1ab3dc4b6e3b0b11fb19e92ba4f1941e5cb5a. 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/ES50A1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aeb5aadc3e01b9525b32d69557fd89dce8c1a08fcd00eac083059426bac3f0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES50A1700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8f379286dc947e62b56e2ce023e51ae07cceae13ce582548ea47d826d9343f. 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/ES50A1700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f96d1e839608c2535eb6bfbfdb69d39c3afd8df53f6b909709e63c02fd01fd3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES50A1700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305a97eb0bb57662c5c5152315c8807832e6f6e19e1d4345f2409b1d1c0b6816. 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/ES50A1700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83551a09a39032c2d5b63a9d041562a3faacdec807405e628ca9c0e10f4cf32d. 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/ES50A1700358.
9pm (Till I Come) 2K18 (Melbourne Bounce Mix)
Ievan Polkka 2K18 (Melbourne Bounce Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d3ce756d1963994c4935fb8f6b6e095d562ac7e1cdf0f73b1a7bfc648e4bd2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES50A1800673.
Drunken Sailor 2K18 (Pirate Song) (Melbourne Bounce Mix)
Rhythm Is A Dancer 2K19 (Melbourne Bounce Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e99766d764a7eef4f8bd233d6a583b153c343ee9dd22d05a101378e10ee73a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES50A1900351.
Push The Feeling On 2k19 (Melbourne Bounce Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b370d6b8d2fdad4bcfcc5ef423e307a65368c59189a378f73c7c38636ee8947. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES50A1900649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae40e6a8d29123284cc1bc23fbe8523dc8a78dc1ee946c8d38f5587dcef46f66. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES50A2300460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1c9e6d035e1b9ad5afff0043f228df9b67b20f00cfda7b489476b3c5f1f00a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES50A2400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe486153ff6cef055a3abab76a1866e723608017aadfaa796b3dc953741f31716. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/ES50A2400435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d44866f7ecfc3db707cd8bea6497cb6f44e671ebee2588671a414a6ccb1c0f3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES50A2400552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb385c660a7b4376e9a78ce2c72cc61f50d2579ffdb323e260147d4657ee0fa44. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:42:21Z), 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/ES50A2500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9902ab43c93aed9a8ea0de0a8fdcd6a01f73013a6cad91db78ac7b2fd15ba9. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/ES50A2500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb274cfd8f97404f6eb0d77f5ea5f7f18f9f5238f7278a8fed20381cf5d9fca8c. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/ES50A2500332.