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 0x230c1a8d21ead45f962767ed84d5624f01451f96b4803ca1eed8c3dd5ba038bf. 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/d95ee0bc-f1ff-4f6e-b824-b5020b2c63ef.json and https://artists.proofprofile.net/proofs/artist/d95ee0bc-f1ff-4f6e-b824-b5020b2c63ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dreams, Fairytales, Fantasies (feat. Brent Faiyaz & Salaam Remi)
{"copyright_id":"0xca980ab5836482d67808277b370f622d3130b9098a23691b525a1cf1ab6def98","isrc":"USRC11902119","name":"Dreams, Fairytales, Fantasies (feat. Brent Faiyaz & Salaam Remi)","registered_at":"2026-06-01T03:21:41Z","spotify_id":"5oady7OSE7dH7LHiqmb3Cr","type":"track"}
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 0xca980ab5836482d67808277b370f622d3130b9098a23691b525a1cf1ab6def98. 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/5oady7OSE7dH7LHiqmb3Cr.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/5oady7OSE7dH7LHiqmb3Cr.
Come Through and Chill (feat. J. Cole & Salaam Remi)
{"copyright_id":"0xa9af6aa281c29a6028d99bb9212f9daded9655919b10b05ddde6152ba2cadd53","isrc":"USRC11702833","name":"Come Through and Chill (feat. J. Cole & Salaam Remi)","registered_at":"2026-06-01T09:33:31Z","spotify_id":"1m8WpLYXEiNVZchsWEcCSy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9af6aa281c29a6028d99bb9212f9daded9655919b10b05ddde6152ba2cadd53. 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/1m8WpLYXEiNVZchsWEcCSy.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/1m8WpLYXEiNVZchsWEcCSy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0828b2e094e7a817850411b2156f96496cf9a742115651a21b7f1735da943b76. 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/4yoShTAPd6Ntr8TLGHnPQ0.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/4yoShTAPd6Ntr8TLGHnPQ0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1962d7377d2fe3a79985e5fa67a9ed4cef5a0259329776163f98c7e026b0094b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5auhToOfuFyhIOpJawJlwA.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/5auhToOfuFyhIOpJawJlwA.
{"copyright_id":"0xa9af6aa281c29a6028d99bb9212f9daded9655919b10b05ddde6152ba2cadd53","isrc":"USRC11702833","name":"Come Through and Chill (feat. J. Cole & Salaam Remi)","registered_at":"2026-06-01T09:33:31Z","spotify_id":"2F1GDrbrhsU8oLwA4n7vxc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9af6aa281c29a6028d99bb9212f9daded9655919b10b05ddde6152ba2cadd53. 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/2F1GDrbrhsU8oLwA4n7vxc.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/2F1GDrbrhsU8oLwA4n7vxc.
{"copyright_id":"0x943fbb85459d74de594ea83d8fdc9413bdc53eeb12a06c62260b5431ae3e9d8d","isrc":"QZF931900019","name":"Sex High","registered_at":"2026-06-28T02:58:21Z","spotify_id":"6Q1roRaTKGskUSMwLFySvB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943fbb85459d74de594ea83d8fdc9413bdc53eeb12a06c62260b5431ae3e9d8d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Q1roRaTKGskUSMwLFySvB.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/6Q1roRaTKGskUSMwLFySvB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f79a8bd71367b39e12eb88337914c1f3f22b97f213b536623337a56a6275b10. 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/4VAFkDy3aFJ4A7HOXk4MJ2.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/4VAFkDy3aFJ4A7HOXk4MJ2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf943b97179f1ded048eba32fb9f51e2e084c0056c9cdff5dad40183ad86fc718. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2s5FLbmJnIpNkcH2GqAqFv.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/2s5FLbmJnIpNkcH2GqAqFv.
{"copyright_id":"0x4602c2d7fcef1355b8e9ce03495203db04ae0ee02f4b268dac4bb28abc49afb7","isrc":"QM24S1843203","name":"Soundtrack to Confusion","registered_at":"2026-06-08T03:03:35Z","spotify_id":"4aLSwglKt4nE1EKmXM78J4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4602c2d7fcef1355b8e9ce03495203db04ae0ee02f4b268dac4bb28abc49afb7. 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/4aLSwglKt4nE1EKmXM78J4.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/4aLSwglKt4nE1EKmXM78J4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc303ccf60c14499439e5a4e18cb1dd199b46f22d604703b4687bd30f9372ae67. 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/4erqyKSGXxWTeCdyh4EIuz.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/4erqyKSGXxWTeCdyh4EIuz.
{"copyright_id":"0x912874e89e12d7de9ee0c0b1acd443a8caf5aace8ccf23831ecbe3097a094597","isrc":"QM24S1843205","name":"History Unfolds","registered_at":"2026-06-08T20:04:31Z","spotify_id":"4L64cgOiUyMAwQGat8lfXS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912874e89e12d7de9ee0c0b1acd443a8caf5aace8ccf23831ecbe3097a094597. 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/4L64cgOiUyMAwQGat8lfXS.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/4L64cgOiUyMAwQGat8lfXS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2e4e6003b3d3f0e14c7ced42772f8137e79b537905018b5102a80ab19fb58d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/10FfiRs7QptthsbW5ewjsx.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/10FfiRs7QptthsbW5ewjsx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc1e6929529bd12eae8d99467f9ef1241122f73d5b27adf8e2d0b214605a061. 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/7tJ71RHHq1R8EKWxLnen2w.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/7tJ71RHHq1R8EKWxLnen2w.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a25e6c82f1c0e4f60205e000e481a8d7c24adf5724e995ca890e076ced18750. 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/6Nf4HqiUho5xH5EBFkA3R4.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/6Nf4HqiUho5xH5EBFkA3R4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca6f6228de163ae20b03f7530db42e970a265f13fb059952736151e63269f35. 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/4QymajQiL4VPZ4TMoocAPo.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/4QymajQiL4VPZ4TMoocAPo.
{"copyright_id":"0x9b184314eb6e7c5c1b27feb30c496adec9b294530de5f2c4105a2c8df11efb31","isrc":"QZF931900093","name":"Black Love","registered_at":"2026-06-08T19:45:47Z","spotify_id":"60mKQHD4tf5NrzconZVeyV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b184314eb6e7c5c1b27feb30c496adec9b294530de5f2c4105a2c8df11efb31. 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/60mKQHD4tf5NrzconZVeyV.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/60mKQHD4tf5NrzconZVeyV.
Find My Love (feat. Nas & Amy Winehouse)
{"copyright_id":"0xa2e7b0e8c90a88d717fb93581799eab570f3ab5c6aca8399059ef30a014bcfd9","isrc":"QZF931900002","name":"Find My Love (feat. Nas & Amy Winehouse)","registered_at":"2026-06-10T02:42:01Z","spotify_id":"1Y6iv7WAgHRLffx6I6qLTy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e7b0e8c90a88d717fb93581799eab570f3ab5c6aca8399059ef30a014bcfd9. 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/1Y6iv7WAgHRLffx6I6qLTy.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/1Y6iv7WAgHRLffx6I6qLTy.
40 Days & 40 Nights (PT. 2) (feat. Stephen Marley)
{"copyright_id":"0x5f7c8d732291fde41e000f5a074d00c4e174c2c91ae100f4d736b8ab851c2d01","isrc":"QZF931900065","name":"40 Days & 40 Nights (PT. 2) (feat. Stephen Marley)","registered_at":"2026-06-07T12:13:29Z","spotify_id":"2XsY9mUhVCMWVBVw2E6wUR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7c8d732291fde41e000f5a074d00c4e174c2c91ae100f4d736b8ab851c2d01. 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/2XsY9mUhVCMWVBVw2E6wUR.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/2XsY9mUhVCMWVBVw2E6wUR.