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 0xc4b535d89fa44c54f0614f386b1f07d99c8f498ac1b853da63bd734eb246a6d8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe9c76b2-3d97-4048-83da-79f06f7937ed.json and https://artists.proofprofile.net/proofs/artist/fe9c76b2-3d97-4048-83da-79f06f7937ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799d66fc5a72a4407835c8c89c1eb4d2847df5457d925d138cc94577e445cf89. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4xQRSupntLmGYZUy2SULBw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4xQRSupntLmGYZUy2SULBw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadddc7a7dc5215092a6ecf49824119296c1e744dd64f266db2288848e8de474a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0i8oK0GUdJb2v3zDNj8nMS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0i8oK0GUdJb2v3zDNj8nMS.
What if midday was at midnite - Kölsch Remix
What if midday was at midnite (Kölsch Remix)
{"copyright_id":"0xf6af4e2db6f4330c49f7442720dcfdb647dc11199e5ef9bcf3199ea649dad21a","isrc":"FR00Y2100016","name":"What if midday was at midnite - Kölsch Remix","registered_at":"2026-06-11T15:14:14Z","spotify_id":"6SeatlYdh1e1YHlWQZcrYZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6af4e2db6f4330c49f7442720dcfdb647dc11199e5ef9bcf3199ea649dad21a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6SeatlYdh1e1YHlWQZcrYZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6SeatlYdh1e1YHlWQZcrYZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3347240eeab573fc14a2137bb384b895c19bfe322f22cbec17ea6b29459ef0a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4zit5yxe0Hk4cSWmiZKd6R.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4zit5yxe0Hk4cSWmiZKd6R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefba826fa065078821bbfbdb84db9a57e7738ac3bf214dc43e28de568e7728b8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1fqXQ4chYqrMAyibmdn1Ko.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1fqXQ4chYqrMAyibmdn1Ko.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefba826fa065078821bbfbdb84db9a57e7738ac3bf214dc43e28de568e7728b8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/20UTQTAikl30ZaNKreGfA8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/20UTQTAikl30ZaNKreGfA8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3347240eeab573fc14a2137bb384b895c19bfe322f22cbec17ea6b29459ef0a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4cZOCJjRzS7khYWk50hd7D.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4cZOCJjRzS7khYWk50hd7D.
{"copyright_id":"0xb6fc49490bfeed752775676e8f79c48d2372e8f35eb563a06daf18d16f48f3aa","isrc":"FR00Y2000028","name":"3 Letters - Stereocalypse Remix","registered_at":"2026-06-11T15:12:36Z","spotify_id":"4y5kDABvdvWxAvRjBtDxgi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fc49490bfeed752775676e8f79c48d2372e8f35eb563a06daf18d16f48f3aa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4y5kDABvdvWxAvRjBtDxgi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4y5kDABvdvWxAvRjBtDxgi.
3 Letters (Stereocalypse Remix) [Radio Edit]
{"copyright_id":"0xb6d9bc66a866ec20257cef39b0d62a01d5b53edec680c560349f27b115f3bd64","isrc":"FR00Y2000029","name":"3 Letters (Stereocalypse Remix) [Radio Edit]","registered_at":"2026-06-09T09:53:39Z","spotify_id":"3quyoQStL4Tib3lCfYwSSE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d9bc66a866ec20257cef39b0d62a01d5b53edec680c560349f27b115f3bd64. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3quyoQStL4Tib3lCfYwSSE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3quyoQStL4Tib3lCfYwSSE.
Moshpit (Feat. Skinny Brown, Blase, Lil Moshpit)
{"copyright_id":"0x7984b0ee9b4a17694756c3871545197b8e173a823202eb47faec0e25f59c73eb","isrc":"KRE132300018","name":"Moshpit (Feat. Skinny Brown, Blase, Lil Moshpit)","registered_at":"2026-06-24T09:41:51Z","spotify_id":"03k7BdLmMEr22RP9Ku6yCP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7984b0ee9b4a17694756c3871545197b8e173a823202eb47faec0e25f59c73eb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/03k7BdLmMEr22RP9Ku6yCP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/03k7BdLmMEr22RP9Ku6yCP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadddc7a7dc5215092a6ecf49824119296c1e744dd64f266db2288848e8de474a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Pxo3J0alsDbf6bZTJ4cHR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Pxo3J0alsDbf6bZTJ4cHR.
Lucky (Original Motion Picture Soundtrack)
{"copyright_id":"0x358bd5eb2ee5da89ed9d84b30038580bb789e58e53c86684cfad4daf3c4777d4","isrc":"FR00Y2000001","name":"Wish Me Luck","registered_at":"2026-06-09T19:43:14Z","spotify_id":"4lTYeSZmxfkMwiHHqNdcKm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358bd5eb2ee5da89ed9d84b30038580bb789e58e53c86684cfad4daf3c4777d4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4lTYeSZmxfkMwiHHqNdcKm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4lTYeSZmxfkMwiHHqNdcKm.