1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa34932d7e06ffaf10ac7e283cb5c26350b731a97fc0be50785dd44b8a242b97b. 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/d45e85e1-08c9-49a7-ab6a-145e5e3d5f29.json and https://artists.proofprofile.net/proofs/artist/d45e85e1-08c9-49a7-ab6a-145e5e3d5f29.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 → block OTSBitcoinBlock must exist at that height 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 0x7d05743911e411ec769467b407c489d1e52b870cbaf618b1f4a960c52da54e3b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:33Z), 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/PLB111300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e82a71ba7576d8ffe258bf45f1a08f2f7976bf72812a01b923b00def7603df3. 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/PLB111300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb583028c63ce23ed148cebec4a2d623ce6c7c31e0c26e01d94176642ec2fe3cb. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/PLB111300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb44fe8c65a60ad211635fa039c0693a43bb66c4e0da24956c6e852dd343184f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:13:45Z), 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/PLB111300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48692539bccdafb77a10cb88f53e800c1e252d7600506f2e5e5b09f4398718eb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PLB111300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4e505fe469926adb235661f2cc092ddc936f0f297a692ed435d03b31205b99. 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/PLB111300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc3c398def89b20cf9e098111195224ba17e5f2a4834d0daf60c706175f20e8. 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/PLB111300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed257f4f0423316d4970e3b21082bf603a3fc918acadb29dca72edc8008990f2. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:13:18Z), 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/PLB111300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c6946443216d40af1ecbb6d5bcc7c8fa86d67757e245775d688ab8f244f3c8. 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/PLB111300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72e4ca5edbaca2ab403d8ad286f7f0281d4c972106e4dba2a8a2cc72d3215f9. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/PLB111300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774d9b9ea9b6ce5dd5cfce45015397af2ebf93e5c570957a46f7ad5a1c2f95ae. 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/PLB111300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de7abeaf97887661f815c99ae44b1490c3e162b39c29d8386d2297afc1f7a5a. 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/PLB111300162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d46e056242b900c568b1395e279b3c551cce7eb9aced81c9a0a13a94243da17. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T01:00:43Z), 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/PLB111300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf777f5609bf678de1ba70a705732317d02c13fd0f46225bdd45dc61f61276a12. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PLB111300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe395c57466ab1a8ba85ffd7daceda65f28269e9c9e45089f3e82d7955a2351de. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:30:42Z), 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/PLB170701507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275c023415ddb67f332c952bc8ef24a98c675ec07fbb6bdbcd2407a82ab9b420. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/PLB111300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665655d4bfd3e6cb6fa6a01ffa4415dca2ff7c7c6ad8831793fa9456e6ad3e21. 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/PLB111300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc770bd4870c4afc3482fa7aa7897d257112a66913a9f814d0f6eb55f0c35e6. 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/PLB111300218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5f0533629701d9b1458898e3f65a531e68eaf9bc6d77dd8baf43de26a08a77. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/PLB111300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f14bab15a908952c432833cb3a107c49bf8876fe515d2149450d03aa5c8040. 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/PLB111300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadccab3316090fb387d2fe2db6e1da726f4554f5a8b07bba49549ffa120faeda. 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/PLB111300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b80e8d798d35b096c6aec69d4f384590913a8892efc573ec6ce39a6a9cbc4. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/PLB111300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeac34b772a2b5c5eb76b48c14d03187c48cdc08912e3928794ee35c31acf4f8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PLB111300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46250671c1e389bdacb44c17bb30915ed79a87813ce2368cb30abf705217ee59. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:18Z), 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/PLB111300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de2ba62ddb69934e1bc56ecb5254d9746f150f978000ec867a51645323ecd1e. 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/PLB111300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1817e02b40b3e3d214b39f4be6b7e0af7b8c896b6be5b4bfc351a98d6df4842. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/PLB111300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4514e81870c7f12574ac023356369517bd3204c645f1cc2b6fc48de24d5c9079. 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/PLB111300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8411391ac9cc36436075e97e622561936c1424fede12bc222804fa0af00c05cc. 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/PLB111300009.
Cień wielkiej góry - live Przystanek Woodstock 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb88bef178259eb5cbf4bfa1a92b26a8ea5b0177aba272a78a2803ce8e75601. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:21:45Z), 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/PLB111800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65545f946f72161584fe5349794f8eb5dd04fddb914d9f3571048ea14efb0c11. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PLC592000223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e7889328016c32f51774967190d3eaed9807bf329b2a884628fb8bc5d61255. 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/PLC592000224.
Nie taki znów wolny (Live at Carnegie Hall)
Rok dwóch żywiołów (Live at Carnegie Hall)
Nie wierz nigdy kobiecie (Live at Carnegie Hall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7c5e6068a6dc0787f7fdc424ee3250becd76f3d13502b92384ed2719b238ed. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLA391591914.