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 0x2ae5bfd2f9742729d4fbce318e291c2a3198d0e9b466850c71901e026bc12c11. 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/43c229e3-801d-400d-95f0-1338cadb5a1a.json and https://artists.proofprofile.net/proofs/artist/43c229e3-801d-400d-95f0-1338cadb5a1a.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 0x9d3954e972851af6f1de98dfa6348040ab97fdd4eec4f15b67b3d122d85782d7. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FIKRA0200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90956e5bb8935bf091bb70286aa04ed42a9ec1910b4920e255dcd8002308ced. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/FIUM70600146.
Laine kerrallaan (Maa oli tuolla jossain kun päivät muuttuivat vuosiksi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d850e429bfc01c8b38359b35d7e987068a2726670b48f6478ae76eafd325f32. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FIUM70800527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a51d6e8d104d5cadf662e855281c123e1208bd6948bc0899071213aaf277004. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/FIUM70800528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d95b90d3642bcce0ac21e009b2f6170529b2431262d02c290bee9c92b9d1aaf. 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/FIUM71200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc098881d67602298f73e44c52d5cf825ee25f165c489c07def1b95cb65b2b99d. 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/FI6161500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a9452250526238c2f89185818a59b738c659eb79cc73934fce34b4e98afeaa. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:20:38Z), 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/FI6161500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdb1b9a1b79ee4d48b10c1cf670fc0fd2ff7f5a8720f857c78877f83dd4de7d. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:32:07Z), 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/FI6161600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c29e7deac66313f1567607d639c1ee9c557e99e079adc7da33bbb69142d7d9c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:28:53Z), 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/FI6161800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f26a7a42e31fea9648b1186a0b0ca6548ae9fe08ec82331675b24b45fe38fa. 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/FI6161800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c4e489893d49969968cbc4a9508d16c4a141f9d2d14307e49dd12c927203e3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:32:10Z), 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/FI6161800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c3bd27e51f9809a247841f71dde1be5305165ad7c4af520e118ee154a03733. 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/FI6161800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f88bc9f6fc4d4a5f67a3c18900796dbf08298fab1497fd337fdf83dc53872a2. 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/FI6161800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d84b3a7d3a6582930a877ce935e5fc210c16b288e07ceeaeb4322355b82b05. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/FI6161800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb89dea594aa04eec2962e74bb35be50a4328054801e7e5179b74637ed758fed. 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/FI6162100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0127b93de3b5e3f5e6f3dff265933c0ae66c61b768e4ddd9255c75147587f4ef. 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/FI6162200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3773d7da7ae6c91a9e998a0ec4f5513953b2960e358eca6cb84dce0d51d7702. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/FI6162100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a7aa8216fd92fdb34ef705aea5dcdda7228a1bdded454fb2ee0d572152a7f0. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/FI6162200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1878710b6075efff50878cb6b3ea63f0e2a3b6ef46083583aa268f606b502f. 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/FI6162400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad7025844ff4044bee587a0d9a66e1f0144ab156f32af8b8d49ecaefc9578ca. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:06:32Z), 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/FI6162400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571fca0793d1cad90e4362514a67b2693f46c1f326d7aaac5f079e81c65e32bd. 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/FI6162400009.