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 0x353ee9529f69a646ef7a0b932239c56852441b92347584879d9fa6ebb672ddb4. 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/7c994ecf-34db-4b19-9303-1b4ddc247655.json and https://artists.proofprofile.net/proofs/artist/7c994ecf-34db-4b19-9303-1b4ddc247655.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 0x03f31a661bfe7136f18a8b512158b4de424c65bdbb6eb9017b87754bc8a1bce9. 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/7c5rKCDYYbyBsLlJ00NgCD.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/7c5rKCDYYbyBsLlJ00NgCD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398e549274fbdc956b589513b69a1d3e769fb41a5cbcc96c06978eab9e48e20d. 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/2G1ZABol64KW7Nxm57VkFq.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/2G1ZABol64KW7Nxm57VkFq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9590fbcf23fccd610232949f6bb5780dea9ff1ee0267a5ae819e9fcea3a82bcd. 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/6XAIfNu79dnog9O8ttFDnT.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/6XAIfNu79dnog9O8ttFDnT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81cf3da4cd5cb70404640cc5d5b6cf5a35e75bd337228a241ecc43be3b37863. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/782ZQ4cvRCCvLdl8iC6tlo.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/782ZQ4cvRCCvLdl8iC6tlo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca659c8d02644b26cdec150c3040fa85c90ae14107063a36424688f0e215e30. 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/3AansLnvAjdNnQTCInZglr.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/3AansLnvAjdNnQTCInZglr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bc505aa52674f06cab38412474c797d76a53a38f8276faed3ae648e6582b0c. 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/5SvqX0LXp1k1XkVHpCz703.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/5SvqX0LXp1k1XkVHpCz703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b519927786cd40214779282badd85d5c9263e7ddd639f41fa81b76a465070d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/79Nple3hrqZj3a9Az8SzsG.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/79Nple3hrqZj3a9Az8SzsG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354f9aae326768f1ee7bda9375f3112f6a9e5d9ed4430f7f6cd94fc31c3c7c93. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Yoawtys2Zcy3qisNjZaZs.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/5Yoawtys2Zcy3qisNjZaZs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9145dbcfd847682be7133077c1a3d5f57dfb65acb40a7e18c1f1d55517252f9a. 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/2VIuYSChM71NqjSTRfl3ZA.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/2VIuYSChM71NqjSTRfl3ZA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508d9a31c0b970db1b2f7c155a064480fe9aeb1139a20f29c4b224afbba53c3c. 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/7ri5o3WzxpBlZYG1QjsPMl.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/7ri5o3WzxpBlZYG1QjsPMl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd728822b38cf37f6f52f866fdedd9d61e6eaf8812770bd634b5064184ccf3760. 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/6bDxRZfHHrAY96Hdqn3Uw1.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/6bDxRZfHHrAY96Hdqn3Uw1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b15abefe83ec4b4ca7d767c384a7e8b82d00c18a8f5fab030cb2f82515ae9a. 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/0jKtJJYzgAsfBrAEb02lPh.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/0jKtJJYzgAsfBrAEb02lPh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f9f6e739610e82c1a8ab1e95839de743f87c9e1b15625febc0a87ac2d90d59. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2y4Rt9GdtDS4irl1IoX2nn.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/2y4Rt9GdtDS4irl1IoX2nn.
{"copyright_id":"0x18d04990cccc99fb36c8da95479c5dcc1136fc1380a2ddc4c76c905dbea0979c","isrc":"ZAUM72300964","name":"MALI MALI","registered_at":"2026-06-09T18:54:51Z","spotify_id":"1H4kk6yuBHYbrqiC8SBkrH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d04990cccc99fb36c8da95479c5dcc1136fc1380a2ddc4c76c905dbea0979c. 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/1H4kk6yuBHYbrqiC8SBkrH.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/1H4kk6yuBHYbrqiC8SBkrH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a64e454b4b3ceb32acef605cd5064e158c16aa48aadcef32ebcc5358ce62db. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2xCJR74SDqFt0e46zirJLN.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/2xCJR74SDqFt0e46zirJLN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffc9682e4f7e9c91c777512cd8ff4cf8277bdcbf75c25ec9be286692d49e2f7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/111Wu8QvRbFsaVzUNhOmNK.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/111Wu8QvRbFsaVzUNhOmNK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4f366a3585efa2047c3d89f963e1c82f3e5143ffc15052ef764f36724ce313. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2rtomUK4F7LnYp4qtYd2sn.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/2rtomUK4F7LnYp4qtYd2sn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291c0c331c668553567bf28a522669368b04d8a0ca3f67982d373def2e3b9f69. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7zLDriPXDM1KdA4lF3vWY8.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/7zLDriPXDM1KdA4lF3vWY8.
Black Panther: Wakanda Forever - Music From and Inspired By
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdf8742be9ef0898fcfe130efa123da65995fbea4a0a1546d57395fe78a0b91. 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/2CFGMjBuqypSwkDaYnrsk8.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/2CFGMjBuqypSwkDaYnrsk8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb591a08d65e460f6168575fc7aed646dea3f9cd623737b403fe5677a2015d3f5. 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/6KsDoI8iySmXQ6UaSPuAx4.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/6KsDoI8iySmXQ6UaSPuAx4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd57bd39f73e35e9634a9a10d71bc9142593393c73a92d2995c4247d84da146. 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/3vKOQQfhc9EjADoKKuuJhy.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/3vKOQQfhc9EjADoKKuuJhy.
Sgubu (feat. Dinho, DBN Gogo, Malindi and Kbrizy)