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 0xdb3fe4249a982e779266a65293f1f9c4130644416d30e82e06f5536a3c0034d9. 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/d0952b7d-2983-4fdf-aa09-ffffd9eb8698.json and https://artists.proofprofile.net/proofs/artist/d0952b7d-2983-4fdf-aa09-ffffd9eb8698.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 0x74db68db6b5285fcccbbb8b36a6c4aca9edb231817428fb14c1189d2c6a42006. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4L7nGapxnVDHTejzf7KTdC.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/4L7nGapxnVDHTejzf7KTdC.
{"copyright_id":"0x2fcafdd16686a4812661b1fceb1a1dcdced0bc34029188b5c512caa04343738e","isrc":"QM7281705465","name":"More Than Music II","registered_at":"2026-06-29T08:04:35Z","spotify_id":"5JaEtzu4L6yVsRQNoyM1f5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcafdd16686a4812661b1fceb1a1dcdced0bc34029188b5c512caa04343738e. 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/5JaEtzu4L6yVsRQNoyM1f5.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/5JaEtzu4L6yVsRQNoyM1f5.
{"copyright_id":"0x66d331ddabe7e1dda128fd6cba29fc4eb552ea2472dcefebe0f97a09f2196757","isrc":"QZDA71895299","name":"Better With You","registered_at":"2026-06-04T10:21:09Z","spotify_id":"1xhiKL4UgfkAfnCUg6HEpA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d331ddabe7e1dda128fd6cba29fc4eb552ea2472dcefebe0f97a09f2196757. 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/1xhiKL4UgfkAfnCUg6HEpA.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/1xhiKL4UgfkAfnCUg6HEpA.
{"copyright_id":"0xe9807c30d9d8506ed43bbf229bdf0e5e944f4849f6f9bd502dfebdb80aac8cd5","isrc":"QMRSZ2000307","name":"Change (feat. Chris Yonge)","registered_at":"2026-06-29T10:22:09Z","spotify_id":"3A8hkVJnEOPi1jyTdcbOiH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9807c30d9d8506ed43bbf229bdf0e5e944f4849f6f9bd502dfebdb80aac8cd5. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3A8hkVJnEOPi1jyTdcbOiH.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/3A8hkVJnEOPi1jyTdcbOiH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2055ee6edfe0586c2d98c2453fcad897573769a7bf1b211833fcbf8a9017b23f. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6DKIZ0mw7o0BRcNf1rxQnO.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/6DKIZ0mw7o0BRcNf1rxQnO.
Even When I'm Happy I Listen To Sad Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6be2206f403d578096f676520d3e5f11ad116abbde0d7864458f3c568e08d76. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3DGjF1ENeFUn9k38tZNwDX.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/3DGjF1ENeFUn9k38tZNwDX.
i never thought things would be different
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4225d1c1d91a1d4a1a38083abc41a426c22c8b0837ae758a454eea52d862656a. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4wMqdz7kHaihAUV8SwOs3y.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/4wMqdz7kHaihAUV8SwOs3y.
Everything You Need Is Right Here (Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70520b92ed5e6e8f7570a62556165df0b3b82fbf0a1c7753db3feb5358062839. 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/63qDLpHcWXIQi2HpZvZ810.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/63qDLpHcWXIQi2HpZvZ810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70520b92ed5e6e8f7570a62556165df0b3b82fbf0a1c7753db3feb5358062839. 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/33bsjVKh3d420FGPoMqhZT.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/33bsjVKh3d420FGPoMqhZT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6909218ad6761587bc86a9361cfb1bef0c98f87f55610f9ac48827b5c934ff1. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Kc7jKos90fkMqaHJrLGcA.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/3Kc7jKos90fkMqaHJrLGcA.
{"copyright_id":"0x234747b1a56c24650eda8cedf5890168c62a7aff87fee10f9f89b949d3579b93","isrc":"QZWFR2413156","name":"Infinite Days","registered_at":"2026-06-29T10:49:05Z","spotify_id":"1JGbKymfWouLsnaCFDOg1I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234747b1a56c24650eda8cedf5890168c62a7aff87fee10f9f89b949d3579b93. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1JGbKymfWouLsnaCFDOg1I.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/1JGbKymfWouLsnaCFDOg1I.
{"copyright_id":"0xfceb3f947cedf6fc4ca38e3df3b7994179dadf41f554ed9e564d4665fe03934d","isrc":"QZZ792462305","name":"Storybook Adventure","registered_at":"2026-06-29T10:49:53Z","spotify_id":"0Z6dTdYaTjXDiwGssAsWRW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceb3f947cedf6fc4ca38e3df3b7994179dadf41f554ed9e564d4665fe03934d. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Z6dTdYaTjXDiwGssAsWRW.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/0Z6dTdYaTjXDiwGssAsWRW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec995ce6d7e892f5cc8738f1384a984b1142cb0c55badd2f1fc529ac10a1001. 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/4sZNrDjHFhG1nnazgwuw37.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/4sZNrDjHFhG1nnazgwuw37.
tell me your feelings and i won't tell you mine pt. 2
{"copyright_id":"0xc1c5fc03ef51035bbc00d64760233c87a036e140a1fe63ade2ecdfe4f1063acb","isrc":"USSM12301185","name":"crow's nest (feat. Ollie)","registered_at":"2026-06-06T04:23:03Z","spotify_id":"376RbjUwbXiUaIVFpdgsZf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c5fc03ef51035bbc00d64760233c87a036e140a1fe63ade2ecdfe4f1063acb. 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/376RbjUwbXiUaIVFpdgsZf.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/376RbjUwbXiUaIVFpdgsZf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf583bd712213c115292a77b567721e34c2595db028fa5694bd26fa0573cb417. 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/6VWGRZPV0pGUi9sX1jQDLU.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/6VWGRZPV0pGUi9sX1jQDLU.