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 0x3dc77027e26ce6cb370695777e9eac1834e6da0b22fa82ee66a6ac79b52552c1. 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/f27d0d2d-a61f-410a-ba52-f6bb0e15c0df.json and https://artists.proofprofile.net/proofs/artist/f27d0d2d-a61f-410a-ba52-f6bb0e15c0df.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 0x3bb81ccce0e36f53e1ce112059368fca94ddbe1a43d067f04a3e93ba804be460. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/CH6541661014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc2a3871241bd911b58e05f19177f1747b207ef4c35f59a4b0d744eaee684a7. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/CH6542156598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae113eecbb5a8dac1ef1a52325687b9215543bacdcf2d6d244fb05e03eaf33f. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:25:17Z), 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/CH6542180077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ad3a82363d21e92ade9ce53e53ca682fea48b2a3cd229e7f3db52584e9510a. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/CH6542192498.
Alena's Dream (From "New York Fairytales")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e0f73df9aa77c724fc7c6acbd1504144b5f4fd79e39ed0352b3b7802b1694b. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/CH6541680385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a128c0f665adab241499f076a0224a004c530d0c0f458405adbca4983f6dbb. 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/CH6541680384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94acb0b0618a1b443e1e72fa2e20dddb2ec31485ca278199bb0e892107aaccb. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/CH6541680383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f970dc48e66f7ad50b2b22e484b7b0419b8b766d3324d3e65834afac57859b6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/CH6541680380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36597e56c559b015ca4e2f2e787be42e96df0922f4d0a01db10b66452debc8b1. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/CH6542204592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffe41b45e3d4dc41b02ff6e8273b24e115b56abea4617ffc325167761a62705. 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/CH6542204593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d59a6b71795df49354359d73a013f6fbb0ef344223ce27dc113f8acfadf31. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CH6542233743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43511f7760bcdc9d6fd7753e863033346549be7559ac745ad3603c5ffe4b358. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CH6542218685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b69f133d75b09e796aaad0cce27af6eae9f9c48784ed4156f633ffd172b749. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CH6542255640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf46ef70e0295d1603f6819b786c0566dc94b3be53ddaadcb5d4cc38758f4c22. 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/CH6542262398.
Piano Moments (Live at "Lexus Forum Frankfurt")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5080193e282c4fe77d443052a7f233875cf6db4c2e9626cc5fe6ab4ef71483c2. 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/QMFME2254770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189b0deaac0091bbabd89c029a32d5f25f19ba4af5b65d65f35a91f0bdac093b. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/NLAM42300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0e24960319030a5e341c988516e232338d4ff2117a75e2717952f9e3d2b313. 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/AUGBT2242144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47739428af77db8feaa487fa9b43921f9f33b57e56578ecd30467fcac45585bd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2330992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1347103984526772642e8aee4f50f16f83991dfea4131b0de8f8361c925a38. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:59:26Z), 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/NLAM42300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa399d4a2241b00a0af36ba6104bf7c7c053fed93f8e08f319cbdb3ee27cfbc5a. 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/NLAM42300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb827250908ba3105da16736d1a897aeaf774f01da4fd1d39c396cc183d8ae6c0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLAM42300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb827250908ba3105da16736d1a897aeaf774f01da4fd1d39c396cc183d8ae6c0. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:12:03Z), 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/NLAM42300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b73216ba385367c569fb5e62c6535c647e2730b5b6ec69deb11b71f47af3b6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QMFME2365777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a163b62d61bd79c23cc5b054836371da071591b1b4d42b1d6feb2a39f8aee6d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QM4TW2488072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ce9acfbdda136afd0786529ed48af3b29079d3862cfe43ec92c9451a95d296. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QM4TX2456729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3015c633b6e88cf2550a69664165ab3bda1396399e14252e56ac551b7883674a. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/QM4TX2456731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773bccbc7d71aa5fcf36ea2fa2e2b3965d6d0918169d6416712e09cf96a7489f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM6P42418642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1febcefd65d3e969b178fb9c8a953a1c205bd8d9902cd4997bb6186adfa1a91. 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/QM7282440960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ad4fca8bb386f562c8ade320cdbdd9bb1eb29a7034d1452e0b04555cae0853. 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/QMDA62475782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb9efd034804bfb206bd551271d178c5e582efc423ac05a846581170528faae. 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/QMDA62482245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541a13580e4e8578837ed7f2eb0147e2708052813207d60e807caaf0816d87bc. 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/QM7282441371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e3b9f8fbcfc76e7e0ec241036601753e432ba18f4d79cb2f6841f4bea206ac. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/QM4TW2445013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49efd551104dba01c8d255e867a957cbb04a4de50e31d93acdd49f9ffbcb1fd. 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/QM6N22420686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d731c2eace3766be9fedb636ce392d7b64350e8323e9ece14f8d3815b19c307. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QM6P42471328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa931cfbf7ff27e24f79e22ce4c9527da27a36057ce1db3669a767e4bc1c2742. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QM6P42471329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad30b6dadaf810147559842e1525c823098de3a59317ff07655529052ce6280. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM7282455528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec7a7cf435a923e8ac48ae6118bf622d5450942cc69b6c4c3fe4dd2ad664443. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QMBZ92481580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2a0f171213a1ce749f3f9e747a74155d8bdff0354ab4e18b702b349a04846d. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QMBZ92481581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa833a51d3f8e41bd7576c8e4130e161963ff759409d046a8c33118d549f1bfc7. 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/QMDA62475781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f66c019889f6549b52ac6a38b9d6e36b6a49a34f6b3bb99b5b1c2a716f57926. 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/QMDA72459713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54800f1649c7b48e60147734a05a726b24185224c0f53f026c288d284898efa3. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:51:06Z), 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/QMDA72470979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80c285fa4434ce72d1b7d4fff6fe58c78228c9aca1dcfa3319a036fe47fa7f9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CH6542524549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab2e403f3e98a70fa7f5e31820f986c462218beb7845166714f5bc275360b8f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US38Y2546940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd927ee949980f4754cd75ea5b8a7f6a8767b5ed43d5b536c4d1c6d952651934. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/US38Y2569939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31941b65de8273528173a86998ef9c9d999ada0ad9fc957976c61ba2b0091d26. 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/NLAM42500165.
Aemeralds presents: Library Aesthetics, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9731f2add507004beef7a072db81a47d0f8570dd5c860f4f7571630ad91280. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA62261784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208fca2209766da442afd4fd1a7d4f8847edd7608c3695c2396413099e23f63f. 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/AUGBT2218257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc6a3d2b7bc55fdd1b066473106980dbf264bfa2b181200eedc2e757e6e0f71. 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/QMFME2359242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0959165e4cea15d5d4fb35259af2e04768592fefb830c0167302b63eb1162729. 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/QMFME2359230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08326dfba2506c18af802334d8432a53eb4b45ec2413c20def195fef2838057. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME2359209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b73216ba385367c569fb5e62c6535c647e2730b5b6ec69deb11b71f47af3b6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME2365777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d80ebc90b3f63abb5f37905940c71864525ae981633eb2e661485ae403f750f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME2365776.
Aemeralds presents: Library Aesthetics, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856e6a6b9baf593734a6ed1d00be359b580a3ca3aec485c70dab5ec55015b0cf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFME2307013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc382b2f452691e801d67322c8f7ab7d4369ee5f6a4475183eba34fc2538b5028. 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/QMFME2307085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e03235ac0a04e8f385dc3cdf776e05234b7b57ce5cba2b798b98d286e24c22. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QMFME2359225.
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