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 0x5c3c090374a0ba5165915bf00c316f9cf868513170fe76f61b2ae3640e4809fd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/559d88e1-7907-44cf-b645-42793a48a0ca.json and https://artists.proofprofile.net/proofs/artist/559d88e1-7907-44cf-b645-42793a48a0ca.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 0x6dcdc8ac89e7756c19febcd5301b312e0e0c4d7316f57eb9a34122bfb4c08f29. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE62M2343474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335b59b2e2b8ded69d1e891a8be0b57e4cdd7ec678d4dc8f17b705c1e2f55328. 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/SE6XX2307472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd813f3330a41297fbab61a5e3fb0eced872652354cd20e3e9f02ba285296633. 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/SE6XY2325068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5723bb9dce205b093c25a501f750a0174744b6d0dded7bc9e81966b6a45ae940. 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/QZK6L2328261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc5cb477815d61078b2f573ee55ee0db1e5c3293020bd85228523379cc15675. 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/QZMEP2160931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67654fcae56e58748807492e7a407e2597152aee765af3a96a08c3a2cdc10e4. 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/QZK6K2197980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f73016b6b11c622abb991b3c126c72a5613599dc99cbea0cfe44c48b5925d1a. 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/QZHNC2102094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c4bb610891789c61dae5f9661318871c6056e711cae2d23b8355deb36bd41c. 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/QZES72116360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b6503415a75d9b298c2311925c1478b6a934bf62e42b7788ebe95b531f7804. 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/QZHN62044835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d313c3c19e5d1700e38800218cedbba8c18fa33804297c8829606599f19ea5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHN62044837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b0ceb23443bc98a5079d11993693fd61daebf55cb3764246f49473d47d032f. 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/QZHN31920839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc52d334f00c7cb4422193c79d6781735e84fd9d8f23829277f4de20eca1538a. 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/QZFZ41900684.
När vi går ut (Tar alla pengar slut) [feat. Obsklassen]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3717d4c2caeed6d984e1be7c421921af4926e81e7314d2ea259bed23150d46e9. 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/QZDA81922918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86ccabb686f09c9217bea1e7f27189d65ca476a6da0fba4555c3ae187ef3570. 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/QZCE61817197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6846a7f2d3724a6db708feccbd51db9e61aa047165349b6b4fbaab84dd7cf832. 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/QMPKX1700344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb639ce877c76e8829453a62077dbf8fe3d86b0ccefdc2423700b7b9c8d7a5187. 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/SE5XG1920805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4972cb9ed6272e7d02c7a16cab6f959964415b7ad0a4bd4d6beaf6ad2fe9ee7c. 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/SE2UI1501601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a6b441ed4a608e896542726bc822a50ed98ec85dd5cd32cbcaa6f0527276c7. 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/SE5752309386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335b59b2e2b8ded69d1e891a8be0b57e4cdd7ec678d4dc8f17b705c1e2f55328. 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/SE6XX2307472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bb70e6c06a3f0f0993bdcc6af8894937fef97a67e0f41400e0154b8579ebe4. 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/SE5XG2405693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab5ee36dbdd4bea848e8df5e99dea6e0bf05e599abc48eb7f3877c972d5ce04. 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/SE5XG2405666.