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 0x62dc3832d36450f054c5f759b6ace18f2c9c711320891f86bcbbe7a36dad6d63. 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/e34d0af8-2fd3-4ab7-aae8-d5ddb9179637.json and https://artists.proofprofile.net/proofs/artist/e34d0af8-2fd3-4ab7-aae8-d5ddb9179637.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 0x0939c2af3f59b90f8f505aa012680f098f0ce162e089fa33956d3a4a058f1671. 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/US3DF1851506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb283bc78905dd21441ad591421cdc78a2f55300bb9ffa611633b5a214679dd5. 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/CA5KR2020368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff06744d99850d20d41219d01de3778d654506fae117a24b61357c18bc41e50a. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/CA5KR2020369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e8d8c5f2220b2c668807774d65416063e474e31c4e08298e50a962e5d4fb8b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR2095748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7930dbf099254797609e93cd26eaf9ecd9687cc91381ca4f20690a2dffba28. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:44:25Z), 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/QM4TW2155140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f00a046ec395f283694ba3a1aca512d4fd08b70354e584fcb2dc4b712c4377. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZNMY2425081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028e4484c645955ef6155df7adea2d07c67a0c1cdd0513ce61038e54a673ab8e. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QM42K2535258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa171111c9d23691a3ab3adaee6a4e00fbae4882f66d17e683329f903e6534e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZMHL2531529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15245e92b20e1a9f46fe3321ef4ebb4ee52f81c81adcbc998749ccd452b117b3. 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/QZS642583806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6ec6d41df7d668015b7f78b1c7ed0be66931c485118bbfb335ec955c1ece24. 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/QZMEV2538078.
Giving Up (feat. Jaden Michaels) - Krischvn Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1566a56a55d237d6deb313db7e3077dc69ad9eb4b4ded69c764d9fd864a812. 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/USDM31910306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a4ac9020633814947e76a6be5a939b251e8bc02b01871e277a4b821358f1a4. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/CA5KR1979969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d338b0f4b526ac150dfe286c1bb69723a944f0d6e2c87f738b58292265cc119. 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/GB7YL2099702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bec7976e036951852b3453b1d9d09d239ea8529cfb0fbf18ea91f344b301c3. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZS672282757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0cf126b7b5ce01dcd6792dc856ddf1d45c1e71bc2797605b8f41a39a1e58e6. 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/QM24S2000507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ce7eb80ca60653b0b07c1ec5ad2f1221650df66b686fc05b7346dd3d9e3a7c. 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/CA5KR2056507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c4b75bc60c9b7e362aab4debf04d56724cc6abc870cdfc330e5ac3eb7280ee. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:24:35Z), 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/CA5KR2056496.
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 0x8d55f1885eee9000d5c80b8c3ce09efa839eb7565bdeb04bcb570c519fd65ea5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM4TW2158244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452170d66f02d44ac795cf2d437440774387455f6ed7d40952189842b4f3a90e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QM24S1808046.