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 0xfb2009cb57da43432fe5a291e5f34a42733d71a9bef69a52e2d17e4a45d8b281. 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/044d0b35-505d-498a-bda2-64b3c568a767.json and https://artists.proofprofile.net/proofs/artist/044d0b35-505d-498a-bda2-64b3c568a767.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 0xd7608a4fb2a58034be28d6c1bfc4b7db61913fdbb093c3675a8a76a16cbe5bf4. 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/QZTAS2244564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057f43210aef264a0227f5b7e3ca19583b8f43165e3fd623f0ff250804ca8ce7. 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/SEBGA2202770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef3b778677a666c9e65f807a242e9c353dde965484b563f87f995e2558d4529. 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/SEBGA2100612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef3b778677a666c9e65f807a242e9c353dde965484b563f87f995e2558d4529. 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/SEBGA2100612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee15c5faaed70341114124dce2bbf34aac24d473267a8cd01cd81f4d6809c22. 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/SEBGA2000833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe7204e4c5f01e3ce8adbd91a23942f22645faac0e6be0c8b249e510eea94d8. 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/SEBGA2000836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd231df04d4fe6673f4b1b50111165cf5990da44b78c132f6f7e0c56b6b83155e. 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/SEBGA2000705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe447ef5f4e1a20b881d27f67d863cddf869142586362ab9adaa4c571ff7e2362. 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/SEBGA2000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1907a4f0273f4825f1f33f2b842768feded7e5caf55719826cd708e00fa91277. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEBGA2001588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd716fbec7fa1f47a479ba34c848b7444327537102be225d8ae6f35ea78b3b406. 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/QZFZ32564472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8772d5b25adaa4a24dc51e69d82d51f48f1c4b9910a95b4af8e91ffbdea0a9. 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/SE3GO2414301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1031aaa88682b9a13677b4ec4835097c27f7eef7756c5b8fb1c09373c34c1c03. 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/SE3GO2413601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10e294dd2f1458902dab42de344fe039558a0de275ad8e3dd026271c4d73495. 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/SE6HN2414051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc5637702aa3463e1a0ad640b90a62122204d455903ee0ba5b875b8f5bf6539. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SE5752439267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e8f4f0a441b33cb3a2bef24aaad5b8eb3a8136413ed98ce776a9dc4518aec2. 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/SE5BU2489378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c14d68b9b4266507b7046d0f2ad1f30f5a640ce0d2db77a1a21f6ed7a8891ce. 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/SE5XG2403101.
Lighters (feat. Oscar Ahlgren & Rasmus Hultgren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5250486e7f2d3366ab13acd104ba52138d3369107eabfa2398e55e90d0b42a52. 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/SEBGA2300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bb616409a9e92bdf55e61bb6dc041689d7447fdc6b36dd61c89e409bf05133. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/SEBGA2200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c20815131bc0f658730b8f7470c23c556cc91bcd7a434fa9286a176fabb7d4f. 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/SEBGA2200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ef44253faf7d7dc47e571e5ba7260abe15bbf38c96cd357ab18aaa72b06e88. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SEBGA2100462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e55c05fb0e31bcd43024347979658c88133899de20a7a27951ad06df2622397. 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/SE3GO2113101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde76dacd886c3e71a102e8bb42a32cb1018e9a4a12ccddd80d17945efee4a10f. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/SEBGA2100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5a9e66916c80345efc2dd0964fd43fe9d89e04c6bb103e61e5680d87391f12. 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/SEBGA2100171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafad277be92da8a0d2b0806784b87074b51b77aa7a37a9984fdc80145ddcf4c. 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/SEBGA2100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd231df04d4fe6673f4b1b50111165cf5990da44b78c132f6f7e0c56b6b83155e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEBGA2000705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e105505cc688d72cd956b2f67b3d9d47f20673966dece5fe1e84d2e38e8f213. 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/SEBGA2000628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326ccf233a362dfc9cbc0fd3f000658445ec14852957074f9f52a121201b5144. 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/SEBGA2000630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe447ef5f4e1a20b881d27f67d863cddf869142586362ab9adaa4c571ff7e2362. 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/SEBGA2000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad90ac1fa395bf3356f5f160b2813cdcb0fd220f6348f9d01d5bcceb2f8e78b9. 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/GBKPL2098127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbf58fb96dd4880013647a9bea22a2876655cc43e69b93341c019af27690352. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/SE3GO2418001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff3a7bb82c1b0c00ec5f3bec3501f3b3efb2d6e34031c841792b65d00e395b8. 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/SE3GO2418102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8772d5b25adaa4a24dc51e69d82d51f48f1c4b9910a95b4af8e91ffbdea0a9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SE3GO2414301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabf658972f6f341c0de81f40edf9f797cb8755f7152484347b161d935aa414a. 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/SE3GO2411601.