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 0xb605cfaed6f932e131648a36d6fb930e30dd7ed8b36dba6afff0c18969a5fefa. 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/7aeb0ddf-645a-4a70-baf7-a7559a0e61c8.json and https://artists.proofprofile.net/proofs/artist/7aeb0ddf-645a-4a70-baf7-a7559a0e61c8.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 0x0a9c8e97f7aa49327e9a32abd9c5f97db195eb3ab134a3377b03dc9ae2e357e0. 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/5QojUDYJHsGYUw8iRMoRVB.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/5QojUDYJHsGYUw8iRMoRVB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9c8e97f7aa49327e9a32abd9c5f97db195eb3ab134a3377b03dc9ae2e357e0. 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/0p6cXpEEZIv1IYIIGkwPzW.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/0p6cXpEEZIv1IYIIGkwPzW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ead0f2463f969b180164cbf381cdeff157e12fd5563f95548a062a2a59c2bd. 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/6g3eVP6mbtSfV5oYvKFrXp.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/6g3eVP6mbtSfV5oYvKFrXp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ead0f2463f969b180164cbf381cdeff157e12fd5563f95548a062a2a59c2bd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2R6otANzDHmX8W5fBRabsv.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/2R6otANzDHmX8W5fBRabsv.
Recordings from the Åland Islands (IA11 Edition)
On the Other Sea - Live Edit from Brownswood Basement
{"copyright_id":"0x0e191db63f9ef1d1264491a1445d899ed62fb9ecb8066c908ad12de3e877b99e","isrc":"GB5SH2300029","name":"Sunny Boy - Jeremiah Chiu Remix","registered_at":"2026-06-18T03:44:28Z","spotify_id":"6u9NcFVg5vxqeY3c5RrWnR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e191db63f9ef1d1264491a1445d899ed62fb9ecb8066c908ad12de3e877b99e. 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/6u9NcFVg5vxqeY3c5RrWnR.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/6u9NcFVg5vxqeY3c5RrWnR.
Touchtheplants Presents: Breathing Instruments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743db5340931fe96945f18e2ca887278e3f9db11d8d373bffe3e70633eb5d607. 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/6kJCArCMHucPp718Qkdn5t.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/6kJCArCMHucPp718Qkdn5t.