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 0x97773bcbd95e71e3ef04dfd03f36d84e49a927723742980ae4d2471070e2dbb1. 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/987e5d98-8cd6-4db6-af4c-e795c563fd20.json and https://artists.proofprofile.net/proofs/artist/987e5d98-8cd6-4db6-af4c-e795c563fd20.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 0x19319b0342290e0e4258fb152ac68232d697730e65da8c754be1bb0c385064be. 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/SE4WM1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de01e3a3a42545471f3a353428f2ca39669062e1cce31818a149768dc272d0d. 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/SE4WM1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4f52d4a9b6c99658e66089ca1b9a4c042820a04423c6f30563417f8b998efe. 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/SE4WM1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe661b6376f2fa8fc4e562dbcee64644ceb1f35b83dbf7d689d6d8be657f145d7. 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/SE4WM1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1f1d2981479c6165ac863a71b2ac6cf5253f796ecc1ea0d2c64e88734384a9. 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/SE4WM1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4bbb32978a8bd055f21b07adb1d2e8ade7e053ae3e1045317f118e13a6e845. 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/SE4WM1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd6a1665d2ec354f9b323eb0913a7e0a2ba16391b012666a14774b485bae7b3. 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/SE4WM1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d6987e18085a3538abf7c1deec311a50a4e90fc7ac8cefd2a6ba1d6bd66ad4. 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/SE4WM1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573fbe7f86c3f6e58a538810e2c21aeb395168aa010e2aa6b361636c96bbc8d8. 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/SE4WM1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8a82d2b86157556b06c27ee150e471477dfe9d3103fbf9d8237048d8c3d509. 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/SE4WM1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692cea96b884eccc1e27c5d1d70ba777933882813928bcda2eb86d0e3ae1b244. 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/SE4WM1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996c53c13565e47ee8bfe85a560fd6c8e4f78da9f1be9c52a3b0424fdb12d2ed. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/SE4WM1500013.
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 0xed5b8735db5c3cd1dcdc5f3feb38eb74ea2aec0e4c15757eb8837d60478f1bc8. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/SE4WM1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fc0173eb50b064266f28096e2f302854ed22f30dbd878ce21db90c734a8909. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE4WM1700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbafa2d028ff5770ee5a6bc838e58dcbc712e667a0dcde20aa3a8f2d02e002e. 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/SE4WM1700401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcf84e9372a153c0e9f5f2e793bd53477d938ccb2232af50e40a17475f121d9. 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/SE4WM1900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873baeff9226be4e2aa171703158a46af708bef64caffd5fef44d3dbe6d3fcfe. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:47:36Z), 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/SE4WM1900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f77ca7179eb9d7259b48d8f024f9b40f6ce1404dd965acf4164f4a83897bee. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SE4WM2000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629c4ff7888ff3304b12ac6fe7abba965de90ba57915068d7b7809df5250ef65. 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/SE4WM2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf9ea4bd2945878a9183eee572a22b75e0cdd17ebcf9e264860b83217e96e37. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:11Z), 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/SE4WM2000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860919d1c48db8c80fe0a68f20ec28e2da1e933c26a11fd514925c6ce9f7ff25. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:29Z), 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/SE4WM2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fec43fe86542386eaaf15543f04440579bb6fe3f8117b38b479d4c3e4115246. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/SE4WM2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92cb967fdd9dda77d1fd092ca77dc5ee247e00cc3f4d976e00e6a8d729dd77b. 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/SE4WM2000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6996cd39ec52363f44673d86a959f6122ebdfae74c012c6b2fad3b80140eff. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/SE4WM2000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c5430019903a7c2c4b7c3394ee287d253a2e7d596d0766d25dafce233b5f59. 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/SE4WM1700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fe7a0b929349df2efdaf64d80e3974f980a8b380533ee4986ae4167c313647. 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/SE4WM1700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9866d757c109db0e76512113c4a2b46a51a39493f530ad72e3fab9c41e64501. 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/SE4WM1700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33867e618824075ebeee1f404e3a0c1506f94942de91dc8f4c01fe31a8d239dc. 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/SE4WM1700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d94d4d1b6487c65c312be2f3b2f263a61c02afc226edaaaf968c684d32282b1. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/SE4WM1700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29418c44a3f3589adb6f00e9bec747717151dfbcc35df644defd2d23dc1fc329. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/SE4WM2200102.
Det är fullbordat (O prisa Herren) (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9051b7572bd16ef2592a0fc9e6ff553ee3f3395e582860656f8b29e05439186. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SE4WM2200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f127edccb1a4ff4da7c6092eed641a06e1107f6b2fca8f13072898317d7f70e. 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/TCAJJ2527961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8e42a4515dc81e676b1454f188e95b16c6222b5e684d4571f65b586cfeac09. 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/SEVLW2304002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264406b088402c5a22caf8fa6bc3f1b45f074ee66d14936827987e4a410047f8. 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/SEVLW2304001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f253362de77f5ab7b9ee73546b5b0e49fb08f6113181f0576e9c22f3657643. 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/SEVLW2304003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58565f15ffffc63bb7df6904053d3bf74e3ce10b26dfdc8c696832641352a02e. 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/SEVLW2304004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0f345842de8ebd9d925a9eb3bd210058360a94bd0ebba31ae3d3124737fc46. 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/SEVLW2304005.