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 0xc9d6011641a15c13df9894969820b3e8344f5749ef0c610c7669afe1c30126ab. 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/851e1086-9c4f-49f4-bac0-5909e14baa8e.json and https://artists.proofprofile.net/proofs/artist/851e1086-9c4f-49f4-bac0-5909e14baa8e.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 0xeecd9483ecb1304b3506c0d47b7e421b68579e993d5216b9e212b7920bf7728e. 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/0PimStMvZsLjX536wQDbQJ.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/0PimStMvZsLjX536wQDbQJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194e92282e0330f864776f3cb5752a9c3ffae31ceaa9ee68262e466774d7f489. 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/5njq1BIEEFYZ4UjzBD0CCH.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/5njq1BIEEFYZ4UjzBD0CCH.
{"copyright_id":"0xf2de1ae3b0efe58422ff2af8c53741d9650cea002434be9b3598c5a8c8e130ac","isrc":"QZGLM2569471","name":"Pobre Diabla","registered_at":"2026-06-06T17:53:08Z","spotify_id":"6c7eL5I88hlVTWYhc8n6zR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2de1ae3b0efe58422ff2af8c53741d9650cea002434be9b3598c5a8c8e130ac. 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/6c7eL5I88hlVTWYhc8n6zR.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/6c7eL5I88hlVTWYhc8n6zR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaead955ad496f46b6c2febda94c1588f61f2d445c60d6c88f57580229ab4818. 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/0OD9mkuk2jbc6Vi7VCDLyI.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/0OD9mkuk2jbc6Vi7VCDLyI.
{"copyright_id":"0xab9b7c5c83ffcfc7cc55dd1cd53b385072f7201930808c03771b769a1a5b5f5a","isrc":"QZTVM2494688","name":"Que Hubiera Sido?","registered_at":"2026-06-04T16:49:40Z","spotify_id":"7tAf1RzPc6EEBbf051xTzR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9b7c5c83ffcfc7cc55dd1cd53b385072f7201930808c03771b769a1a5b5f5a. 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/7tAf1RzPc6EEBbf051xTzR.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/7tAf1RzPc6EEBbf051xTzR.
{"copyright_id":"0xf9757bbde7a2d29b6d220c2f463f6c272ff1446221a7007b0c70ce1bfeae8c06","isrc":"ES64E2496301","name":"La Rizos","registered_at":"2026-06-07T08:02:54Z","spotify_id":"3cAJOFulaOew3vJvDGEtfc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9757bbde7a2d29b6d220c2f463f6c272ff1446221a7007b0c70ce1bfeae8c06. 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/3cAJOFulaOew3vJvDGEtfc.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/3cAJOFulaOew3vJvDGEtfc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd462141891aa535cae9b94f9058f217c3e2e904b3b3aace2feafe0823a7eb661. 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/2s8lm308LaH0PsmokfaSiD.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/2s8lm308LaH0PsmokfaSiD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db0696fcbf13be229318b0f77582a42e7307282593c8fbb6f1b279f5cb71d2a. 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/1H2p65F0wp4FPfk6oxUqNd.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/1H2p65F0wp4FPfk6oxUqNd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67030b6b9acf3c2a093e74d4dba216376caedcd67d56b994f9ed65174605621. 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/3KGd32IDi1ZlC6R6lDHuvw.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/3KGd32IDi1ZlC6R6lDHuvw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cc5f35bd0ee86555cb4ea3cbee5586a7f79d5794cde7d8bceb12acaa88ef45. 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/1DXS6nYMooo0O1M0hSLIfC.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/1DXS6nYMooo0O1M0hSLIfC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ae4c101a701343eb24853d5a5efd94b45cb35ad0d7d57569a080657481234b. 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/76g8d3mfvIj2TTdoiyfHpi.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/76g8d3mfvIj2TTdoiyfHpi.
Latina Fever, Vol. 3 : Reggaeton, Bachata, Salsa (Pure Caliente Latin Tracks)
{"copyright_id":"0xd0aa8e2f66bad3f66d23646a8c4c7e2678863500778899cefd02e9ac64457272","isrc":"QMFMF2049988","name":"Si Él Supiera - Remix","registered_at":"2026-06-06T17:53:12Z","spotify_id":"1uJvZHZCwW8U0wGzvKkEWw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0aa8e2f66bad3f66d23646a8c4c7e2678863500778899cefd02e9ac64457272. 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/1uJvZHZCwW8U0wGzvKkEWw.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/1uJvZHZCwW8U0wGzvKkEWw.