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 0xd6606fd8d0f337ceb31cb3c15f84d7f41b5741b8a9357fec7e0678f7bef1a200. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/836f4d10-22d8-4970-9ca1-14f4fa8a3efa.json and https://artists.proofprofile.net/proofs/artist/836f4d10-22d8-4970-9ca1-14f4fa8a3efa.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 0x4799e4b2f6fb145ddcd067533b71b97de1f8c127d3f8dc7349cf6ea4a9bf30b9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7DtBkstMcMaLFtU6J1EtS6.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/7DtBkstMcMaLFtU6J1EtS6.
Potpourrit de Mi Region- El Cumaco de San Juan, el Muñeco de la Ciudad, el Gavilán, Alma Llanera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf3e29e10e6decc4d861f39d59775148e1a3ae357c912279157c0b572392569. 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/74ItpLXNxKaaY9uSYi7vzp.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/74ItpLXNxKaaY9uSYi7vzp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e0b33ec47c6e62638aeb21265444812812f2d2d4f2253bf271f4ad85db049e. 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/6E64HwOahNTckjwffHfP6S.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/6E64HwOahNTckjwffHfP6S.
{"copyright_id":"0xff1cb08db7b9354db3af1812ab7e5a236842f0b14d0db7fa66e68c91ea754f27","isrc":"QZMZ92529050","name":"Te Perdí","registered_at":"2026-06-21T17:37:19Z","spotify_id":"2IpXmQ5zmUOwSexA6WikDo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1cb08db7b9354db3af1812ab7e5a236842f0b14d0db7fa66e68c91ea754f27. 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/2IpXmQ5zmUOwSexA6WikDo.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/2IpXmQ5zmUOwSexA6WikDo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4799e4b2f6fb145ddcd067533b71b97de1f8c127d3f8dc7349cf6ea4a9bf30b9. 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/3IPbrlVslGpnTPPRcv7o5R.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/3IPbrlVslGpnTPPRcv7o5R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d98c32a8faf1902f586a58f1330a0c726607ea8ac2a48c245b5e317d1f550b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1RI4wj6zcW0j1pG1uUWnwr.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/1RI4wj6zcW0j1pG1uUWnwr.
{"copyright_id":"0x2936325be55e7480e776c8b311cfbed6880317dbe3fe6b4a274af53889dfa439","isrc":"QZGLM2551599","name":"Quise Amarte","registered_at":"2026-06-28T06:02:54Z","spotify_id":"1bZyUcJpT0QxQQhZIVkkVz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2936325be55e7480e776c8b311cfbed6880317dbe3fe6b4a274af53889dfa439. 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/1bZyUcJpT0QxQQhZIVkkVz.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/1bZyUcJpT0QxQQhZIVkkVz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749e2861fa062440a48b5624146e4de8480a564bf18bf33ecae55ce54556f49b. 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/1kQeoVesU2ROWQkS3t6RCr.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/1kQeoVesU2ROWQkS3t6RCr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8870eb5466523f69fe1efbae28d5118a9dca9dfb7c6248a02c79415935013045. 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/35pOskCGrSocI36rvsEyuq.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/35pOskCGrSocI36rvsEyuq.