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 0x7fdeb29c4812842c2064d0a5af9e5b5afd7b5c1aa94be560f73be8b16a6b1a7a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/226a39de-259b-4db0-8b97-869b2aad8e2a.json and https://artists.proofprofile.net/proofs/artist/226a39de-259b-4db0-8b97-869b2aad8e2a.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 0x2c314eb6bbf914dd9105ca6975352cd9145c6ecc8f791b1de7d21c69ab54384e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PLG251200397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c10b664bcea31f6b6ef0b4e5d412b51ff5a0afd480bf1da11dc0fd570f7ed54. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/PLG251200398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d471dabd01b88b43e38df970ba03098390ef58ff3578d34f89a8c6fa43ea48a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PLG251200400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc2e8a1d3eda26e148689804f06200fad53dda1a061834d678f8f5d3c457c15. 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/PLG251200402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba7df579dff68845d4a607e26902d76bdf02584dd901e9fb9a9af611266b09c. 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/PLG251200403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb6d0187d658c648a34ca48db99b14162c00fec4217787195006b2ca49a61e2. 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/PLG251200404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad8d56b562483149786f35575b496b1b0257555fc3a4b33af358ac70fbb1212. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/PLG251200405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd6b88e6b7cb0e50f74da2d2f105188594f2de384060e57f6d55e0f9c40c24d. 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/PLG251200406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18318ff11ef0247623f09bd0f492e3be02705df77c8dd32208ee93b6ea179563. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:44:43Z), 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/PLG251200407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee280f432cca782c52c123e14d85dd6f7db39def40b3b87ea6acb12ab456835. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PLI368771550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbc562d56727ab8cb1ba0ced0419e4d640ac162fdaa074394b9a9c8dd83540d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/PLI368771560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d42270df55cb6a28603a5f5f7fb8032ed05784d63d9a4e57b370ca90a3f5a4. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/PLI368771580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896aa54dec32e1bc289646f62a4af0b7024efc3309f4eee24c2f849f53ed841d. Chain 2 (Bitcoin): anchored in block 957737 (2026-07-12T18:02:09Z), 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/PLG251200368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37466eef0994c2cf0d1d4471f1bd383d305d96b7d332305e9b6292b0a2b39e76. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/PLG251200369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c07b3c9c8f37546f4e90f65c4fb752ab0ba7ab2d703fb281dda54720c5cdfef. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/PLG251200370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e611f618def30c7dff860bcceb251235f2ac6764b8b5212b0b3b3f9652e661. 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/PLG251200373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5311c3e82c8a9985486568d1ae8b0e729db5dec87cdb18b8dd6fb99b619a2fb. 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/PLG251200374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e935ed23f5e5a1de0bf42e370558db81a51193deed902cccb89a43426fae5e. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/PLG251200375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a5c7bc151148e5125721d49ca67805c63f9189ff42f5ce80e4424aedf0df1a. 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/PLG251200377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa053b669dcc66a774cccf3f8787acee7635e66994b99ad138a975985b4aa0f96. 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/PLG251200378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4f2d2fb4a93dfabb0e2b9c0a84a59dd2a452f1a63918836e0e0a181680ec15. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PLG251200380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dcfd492abba33f596f353e81107253e72034618761759868e7fc54c849c92b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:09:26Z), 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/PLG251200381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d614d007369a76eab729e79b4beb869fb3c78ae33f3e9b8b3ed61ceb67d529. 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/PLG251200383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f33508a85c50ec7e5d386354ac91eb68de310ce9f788907ad70a58b8f213c4. 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/PLG251200384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc47d2835a77b38c8bf37e6c22eec0104475aa86ad79e04366686b1fc169a69. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/PLG251200385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b68e03450324a1a24efeb618c32bfab72c5d7d8ca843a8a9c76d1889f2b74d1. 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/PLG251200386.
Nie mów do mnie nic - Live - Wałbrzych '88
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b488d147be7c6946c01574a26618b03a031aa2ffd426f6da558646e14e41af3. 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/PLG251200388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1c8c42dd3017b3ab232c2247b24934023618900824e9a9de3795ada60f0919. 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/PLI366549450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c58fc3e82b9f72e6f57ba5ce4a098d47220c09a0a5eee6c9d6641f1bd83f6b. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:22:38Z), 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/PLI366549480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4794f47134e66d94ce9bf8e346f65dfceec1ec5966bf352fb89d8394f85a43b8. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:32Z), 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/PLI366549500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e578eb3ce099c006bca48706112c30bc03f77e4931203837460386590f01b3. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:33:23Z), 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/PLI366549510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fc3f129c1a20bbde79854f30654918382877edb14ed04ad78602293b3da48b. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/PLI366549520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabee8f6d934372f961f90ee30740504ef44ba6e5b60fa234ec557338397cab6d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/PLI366549530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6033785d0b3cb32e92710f3c8ad50ea52cf4c7b4cc785b0d42a04c9cafe74743. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PLI366549580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c2a07d69edd014f50d476f4dd6c1f6926ca611451d9263e7d4980faba30211. 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/PLI366549600.