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 0xaf2debfdb4f046d460ee5b2e131dac8990f3c02832254da9152f56d54f8b9df5. 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/39c18dfa-0bda-4601-86fd-75a2041b422e.json and https://artists.proofprofile.net/proofs/artist/39c18dfa-0bda-4601-86fd-75a2041b422e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vision of Disorder (Raw District Anthem 2017)
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 0x9df15299ef3d47e4f298763d9f50ca3e6104c91596a51956f76626400bb974df. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/NLG3W1800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1621a82c2128df331d32c45371fd1a62b8cf5fe88117a048a8c90eecac51c35d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/NLG3W1800213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4726bb30ba6df15f666b4eb7831728b1fb38546835058786e48a258f9902967. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/NLG3W1800375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e1f838d218ffa77476631c9d6ac1396c7b19d58396043ccafc9bfabd03d3cc. 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/NLG3W1900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94462daf13f2cef2bf99ad9f8eafcc37053f875ca9107ded12c3d95a3b4bf30c. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/NLG3W1900159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a76b9197e0f5d941021d86a8ef83ea9966aafee0777c485c3051d4234e3117. 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/NLG3W1900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01361e4c93f61def615c053428472e6a72f6f4cd5bbff3cba898d05c7a1664df. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/NLG3W2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859049360c2af6d40f4f10124de3a0de5b3b24885120008a458c9e3c171b918b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NLG3W2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f40d40e612c97d41ce989d896828accdd337f1938f07d2e62b0b038fa40dd4. 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/NLG3W2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141b448f52282a911c0482f2ff603e9f114e08e68f2bb73bff3af811fcedfac9. 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/NLG3W2000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7599ffe409a98df5fb35cb8ed840881eba8516e5167b1f102d9d3900d44cd21b. 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/NLG3W2000166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3027c1c2de184593df6e852b8564d4dc443de9411d661cec08ac669f46f84c4. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/NLG3W2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ebf37111946b2f5d09d51ca34e44389f1a8c6c0c69d928892281981ec178a3. 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/NLG3W2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ebf37111946b2f5d09d51ca34e44389f1a8c6c0c69d928892281981ec178a3. 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/NLG3W2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c446cd6dcc290a9330d8423bc6ad8acab33e95a91f264758493721401dfe54. 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/NLG3W2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab8fc44867da2a82f1ca05d0df9f512ff9009f984d4872ca4506ba5a9aa449a. 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/NLG3W2100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a39e64d3ee526a6b6af6038e2032ce47f5e37af2b71dccd1798001960d1324f. 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/NLG3W2100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf416565e3ef4af3006edbc4a78331ea10bf74c46cc2009eb7b11b6ff1505106e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/NLG3W2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04624347508e082f84ce8d9a7e7430a0b361a3d040a2f77c3d15638b55f7792. 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/GBKQU2286394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822fa1971b05d4ec73b0e29f2bffab3b345f12ec7f7a3a54d2d10f39180cc67a. 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/GBKQU2316841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f2c75f1167b70e26209705275192ac9f640da8a43eb956ead885ed5f375609. 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/GBKQU2357872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138419edbac7ade55a615a3730dc1943d99d3780cfdf87c15a6ce72c213f7c42. 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/GBKQU2445763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c569a619b3a5e3740892d7f8dff95658c9a7c44434c0ae118583816212fff6. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/NLG3W2500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1777225a5fb435f262bec167534b4b115361755c508939f2d574553abd0fd8d6. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/GBKQU2540788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37c621ae3f878e2630049cbab6753127be896bf274912e6282b8efb528981d8. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/GBKQU2585131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cbd6375d1ff3a5f3850abc70ee44927c143ffeacc6ef5fe1ecb2cfde19c0a9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBKQU2431736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ebf37111946b2f5d09d51ca34e44389f1a8c6c0c69d928892281981ec178a3. 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/NLG3W2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a2f27ba7d0d5c87c5d74c1118c2e7ad3c9eb7d40a037bf2a7aa36dee7a22e0. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/NLG3W2200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb606547b37faa308d71378b97a675f647eb6d6eb80a7a3156d4f94d13144aa0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2390126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b3be9257bf01de8799ed6c80d7c95dd92e3d69a804f07809bb85787c492813. 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/GBKQU2466011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafebdc6f011a65ac8691fbc5c2104339ade920c7b621d64b8647f7175149465. 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/GBKQU1924656.
Hardstyle The Ultimate Collection Volume 1 2019 (Mix 2 By Outsiders)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05412e0f0316c6c63da19b5d0b5f88973fcb55562a0ef8ec605b09c5c99b695. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NLS241900206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf881ef6ef4346da26daaad5f65b02fe86903a64ea9991eb840218663c5aed373. 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/QM6N22498437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a2f27ba7d0d5c87c5d74c1118c2e7ad3c9eb7d40a037bf2a7aa36dee7a22e0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLG3W2200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1801943d29766619c4aa531ad363feb186a0cc8ac1de10829b3a29e6b6f998e. 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/CA5KR2056498.