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 0x6c5fc315cc44cc5fe58c019d1def439b23d782fd2367135fecd71b6ca5391291. 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/aee717bb-088c-41de-8a05-e3b6dc9fc36d.json and https://artists.proofprofile.net/proofs/artist/aee717bb-088c-41de-8a05-e3b6dc9fc36d.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 0xd7becffe576cd5618a9e9b10c333fe8be5b22e7f4e23b45d8eb32bce1024b78c. 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/1GLM0M9DA62xZsyp2UNq7i.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/1GLM0M9DA62xZsyp2UNq7i.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e804dd996d8c28312c822de385e84559205f2fa6a92a2f17ce773d3ee3fb3f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7o9DaR6RdwVnwwAM5a8clw.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/7o9DaR6RdwVnwwAM5a8clw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b40438b148912c527e0599056c3a3aaa02d92d608c9b9e0ccc3e54e969d27b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5hUBpa9PPyba6qElzbEiXM.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/5hUBpa9PPyba6qElzbEiXM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b40438b148912c527e0599056c3a3aaa02d92d608c9b9e0ccc3e54e969d27b. 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/38YHrfaaNLEvtBS6aSHjbE.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/38YHrfaaNLEvtBS6aSHjbE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4bfda116edf7c870c640ccefa07f03f700cf95f0378d150de0de42718de643. 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/28QF8d2JZlPbbgz1DkK4Gg.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/28QF8d2JZlPbbgz1DkK4Gg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50697ae0cea257a261b7426d41b4e39604d35b7bb284b232352abf7eee96e3a3. 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/1swuvWutNwzgmIZ38CgcwZ.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/1swuvWutNwzgmIZ38CgcwZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad1e0494535287e6216d8d28857326e5bb4c1f8953f84ed9361fe54b20f12c8. 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/6TEUwNhp0pEeFZnYfWxxhy.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/6TEUwNhp0pEeFZnYfWxxhy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe713854e3e88c5c012522620b99ba78cf526aa9ea8dbe6a54db6835782097d86. 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/5IVrHb1Be9q1nULagyNmUm.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/5IVrHb1Be9q1nULagyNmUm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4015e05577e896d2031ab0593583f5a46b03731b2359ab5d061d956c45959989. 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/1U2cG3ede8yHj00tmYHOjC.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/1U2cG3ede8yHj00tmYHOjC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5286847c8fc00d15ca18b68b8da7f7897fbc410d98937e9eaf3934fe263a2f04. 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/43YjLvS2Q3O06ltDci1cCy.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/43YjLvS2Q3O06ltDci1cCy.
{"copyright_id":"0x9adefaee4901cdb37409e34d09274dfdee26ffc74a0b2025c498dc9cf4b302c1","isrc":"AULI01607140","name":"Talk Like That","registered_at":"2026-06-09T21:47:29Z","spotify_id":"5P9Sefk0sAXDQX0q0Z7PPc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adefaee4901cdb37409e34d09274dfdee26ffc74a0b2025c498dc9cf4b302c1. 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/5P9Sefk0sAXDQX0q0Z7PPc.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/5P9Sefk0sAXDQX0q0Z7PPc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96610b22afb07e4ff01f0d5e1d0a08f928996737e8134455bab631409de262a6. 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/2DYiU4jond7fLR2G5mBwBV.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/2DYiU4jond7fLR2G5mBwBV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e804dd996d8c28312c822de385e84559205f2fa6a92a2f17ce773d3ee3fb3f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6jrlh1tJf6n5ab9HDN3Ixu.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/6jrlh1tJf6n5ab9HDN3Ixu.
Guided By Angels (triple j Like A Version)
Guided By Angels - triple j Like A Version
{"copyright_id":"0x1a00f7c99f92ee5393a75c6940085976385d53b5c2fff9b5b02ed92b2be91d9d","isrc":"AUAB02301456","name":"Guided By Angels - triple j Like A Version","registered_at":"2026-06-25T00:21:52Z","spotify_id":"7DXnqG975I66etEYgxOKV1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a00f7c99f92ee5393a75c6940085976385d53b5c2fff9b5b02ed92b2be91d9d. 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/7DXnqG975I66etEYgxOKV1.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/7DXnqG975I66etEYgxOKV1.
{"copyright_id":"0x4f9afa8e90d851bf05f8076f13c861dfe51ec7f3ee346d07b96f3797bad5c113","isrc":"AULI01926830","name":"Later Flight","registered_at":"2026-06-23T19:11:26Z","spotify_id":"1oxnUlWFcojl8yYkU7vDtb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9afa8e90d851bf05f8076f13c861dfe51ec7f3ee346d07b96f3797bad5c113. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1oxnUlWFcojl8yYkU7vDtb.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/1oxnUlWFcojl8yYkU7vDtb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ba5f3749aaffeb2fd4837c24cfea280b07ec1938f73dc05b4934a53894f44b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7v4OGBcOmJOIQzCd7VEh48.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/7v4OGBcOmJOIQzCd7VEh48.
{"copyright_id":"0xa3ba5f3749aaffeb2fd4837c24cfea280b07ec1938f73dc05b4934a53894f44b","isrc":"AULI01928200","name":"Dark Star","registered_at":"2026-06-22T11:42:10Z","spotify_id":"6ovsO8fXgRxnxpuFyADAaY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ba5f3749aaffeb2fd4837c24cfea280b07ec1938f73dc05b4934a53894f44b. 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/6ovsO8fXgRxnxpuFyADAaY.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/6ovsO8fXgRxnxpuFyADAaY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9afa8e90d851bf05f8076f13c861dfe51ec7f3ee346d07b96f3797bad5c113. 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/0r94Ho9DOZeieuPS7SEtV6.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/0r94Ho9DOZeieuPS7SEtV6.
Truly Madly Deeply (triple j Like A Version)
Truly Madly Deeply - triple j Like A Version
{"copyright_id":"0x773514278dd18ea2bbd4c2c17578fc9ddc43d56feadd8e636e83f23605796103","isrc":"AUAB01900262","name":"Truly Madly Deeply - triple j Like A Version","registered_at":"2026-06-07T04:03:25Z","spotify_id":"0n7lCJk4zJiLpM2pnC9jkm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773514278dd18ea2bbd4c2c17578fc9ddc43d56feadd8e636e83f23605796103. 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/0n7lCJk4zJiLpM2pnC9jkm.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/0n7lCJk4zJiLpM2pnC9jkm.