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 0x5cad00b1af972746c7859311738ce3a643b38bc4b93e3f048657d76bd503cf4b. 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/d97b748b-f040-47f3-b5a7-c6eccb391b4b.json and https://artists.proofprofile.net/proofs/artist/d97b748b-f040-47f3-b5a7-c6eccb391b4b.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 0x1aae8e536548d9b75e974f45e9951d352ecab2d34487b9f2ed4c4e40072cd0a5. 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/6EjTmLZVdDfp66yawG1CDb.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/6EjTmLZVdDfp66yawG1CDb.
{"copyright_id":"0xc826335f8fe0159b0b28bd95d0f4af1574f7b27cf3ebc66dcf9beaf35ae8263a","isrc":"GB5SH1600063","name":"Do It, Try It - The Blaze Remix","registered_at":"2026-06-05T22:04:39Z","spotify_id":"4aWVftDrp1H1b8Nk5Xdxv0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc826335f8fe0159b0b28bd95d0f4af1574f7b27cf3ebc66dcf9beaf35ae8263a. 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/4aWVftDrp1H1b8Nk5Xdxv0.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/4aWVftDrp1H1b8Nk5Xdxv0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5e7bc3de7cb087dad495785951538af852304d62d40f2c2a1116b9b5edc987. 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/397sfkANMRKEuchzPCvlFL.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/397sfkANMRKEuchzPCvlFL.
{"copyright_id":"0x8628d3258a7cf16b31d0fd220f9a9e16c65cc2833191cc097612cd7b64e584f6","isrc":"GBEWA2202030","name":"Slow Wave - The Blaze Remix","registered_at":"2026-06-06T11:48:33Z","spotify_id":"6WcCrwSixrGS68YSWeCLOw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8628d3258a7cf16b31d0fd220f9a9e16c65cc2833191cc097612cd7b64e584f6. 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/6WcCrwSixrGS68YSWeCLOw.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/6WcCrwSixrGS68YSWeCLOw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5e7bc3de7cb087dad495785951538af852304d62d40f2c2a1116b9b5edc987. 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/6aaPSiYD5ocv3UZqweJEAm.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/6aaPSiYD5ocv3UZqweJEAm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16383b99e395c5a001fe445a0083434a19f86a9625b589b3f004fc697435f739. 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/66NxOrXcSsTJI1hmF6SOw5.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/66NxOrXcSsTJI1hmF6SOw5.
{"copyright_id":"0xe5c36d82d82ca6f1cac63bf0f37d3d0e787442bf0fcc5ed1404a78f04761c99f","isrc":"FR59R2442177","name":"DREAMER, Pt. 2 - Sleep Soundscape","registered_at":"2026-06-06T18:26:20Z","spotify_id":"4J5thFutjgZhwxj2KtHM23","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c36d82d82ca6f1cac63bf0f37d3d0e787442bf0fcc5ed1404a78f04761c99f. 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/4J5thFutjgZhwxj2KtHM23.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/4J5thFutjgZhwxj2KtHM23.
{"copyright_id":"0xf903109ede097cb29e22e48ecbe147a47f458c112931cc2825da21d51e3c187a","isrc":"FR59R2442178","name":"DREAMER, Pt. 3 - Sleep Soundscape","registered_at":"2026-06-07T14:37:35Z","spotify_id":"0qtzYzyLnOIQ5YNgdPfWjh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf903109ede097cb29e22e48ecbe147a47f458c112931cc2825da21d51e3c187a. 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/0qtzYzyLnOIQ5YNgdPfWjh.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/0qtzYzyLnOIQ5YNgdPfWjh.
{"copyright_id":"0xe5338a470cb269fb9ce561727f0a70c6f72c398d0adf8159827cea525c0a07e4","isrc":"FR59R2442179","name":"DREAMER, Pt. 4 - Sleep Soundscape","registered_at":"2026-06-07T14:37:29Z","spotify_id":"6aYHwmcxiyC00kXspfSWb1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5338a470cb269fb9ce561727f0a70c6f72c398d0adf8159827cea525c0a07e4. 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/6aYHwmcxiyC00kXspfSWb1.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/6aYHwmcxiyC00kXspfSWb1.
{"copyright_id":"0xf5140acce261a75c4342545fb6c6f73c21d1c24ffb72dcd8cee6dab5d86c9bbe","isrc":"FR59R2442180","name":"LULLABY, Pt. 1 - Sleep Soundscape","registered_at":"2026-06-05T13:24:25Z","spotify_id":"3elHEIZWPjJOFWg0sRaNaU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5140acce261a75c4342545fb6c6f73c21d1c24ffb72dcd8cee6dab5d86c9bbe. 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/3elHEIZWPjJOFWg0sRaNaU.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/3elHEIZWPjJOFWg0sRaNaU.
{"copyright_id":"0xd24e8b2cc59c2b9c5e6a6d5903510a8fd2ba49b13bf442c8f134e113e2bde9b4","isrc":"FR59R2442181","name":"LULLABY, Pt. 2 - Sleep Soundscape","registered_at":"2026-06-06T12:55:38Z","spotify_id":"0517JJFDruVraKH0ELCkdA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24e8b2cc59c2b9c5e6a6d5903510a8fd2ba49b13bf442c8f134e113e2bde9b4. 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/0517JJFDruVraKH0ELCkdA.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/0517JJFDruVraKH0ELCkdA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2256be108329d03b7c38dd1f133b751494f1e0d2ce84693ff0c2296208db296b. 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/1caUJqwBhNUe1xmxkji5YV.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/1caUJqwBhNUe1xmxkji5YV.
{"copyright_id":"0x2b2e2584ccf4594fc2d2967849ec19f47ea655865c8ba5679f28b7dfb9c040fd","isrc":"FR59R2442183","name":"LULLABY, Pt. 4 - Sleep Soundscape","registered_at":"2026-06-08T04:43:43Z","spotify_id":"3h4mQvqcpzVPRS58kIMPLR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2e2584ccf4594fc2d2967849ec19f47ea655865c8ba5679f28b7dfb9c040fd. 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/3h4mQvqcpzVPRS58kIMPLR.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/3h4mQvqcpzVPRS58kIMPLR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f22c9087b1d5f31d43bc0137496ab43218009d1447e0002239f3ead7f75c7e. 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/6OUCosC14wZTh5JW4RMtNh.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/6OUCosC14wZTh5JW4RMtNh.
{"copyright_id":"0xba79e93318f6fb8125a90faf3fd27c18ddfd2428cd92ff3f0624a300c95645bf","isrc":"FR59R2442185","name":"BLOOM, Pt. 2 - Sleep Soundscape","registered_at":"2026-06-08T04:41:01Z","spotify_id":"4wieLWisIxxU4581pjx6DW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba79e93318f6fb8125a90faf3fd27c18ddfd2428cd92ff3f0624a300c95645bf. 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/4wieLWisIxxU4581pjx6DW.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/4wieLWisIxxU4581pjx6DW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578d97c8742e99b7491f69f0540f9d514d4f03afd1c30d80e48e75aba8653e49. 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/5vsAjbZfcyQ0oHtQJlJ1Sf.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/5vsAjbZfcyQ0oHtQJlJ1Sf.
{"copyright_id":"0x57aec62f807aab737e3bdbc3242bdd12a4ae74bbefd54de33c9cb62d3c64224f","isrc":"FR59R2442187","name":"BLOOM, Pt. 4 - Sleep Soundscape","registered_at":"2026-06-07T11:50:46Z","spotify_id":"6e5P6HDSR9qBtAHXKThaEH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aec62f807aab737e3bdbc3242bdd12a4ae74bbefd54de33c9cb62d3c64224f. 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/6e5P6HDSR9qBtAHXKThaEH.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/6e5P6HDSR9qBtAHXKThaEH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363ec8b7d6b169c6357d273c864f6d4c36b04f9220f883761c387a7d6b0244e8. 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/2lDyCExkaaCPXlBJ7FZJJC.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/2lDyCExkaaCPXlBJ7FZJJC.
{"copyright_id":"0x6374e5c01763026d9f5dcc3c05fe1a4c17a2c33e7a1dcc7beb7390f09c5ee55c","isrc":"FR59R2442189","name":"DUST, Pt. 2 - Sleep Soundscape","registered_at":"2026-06-06T05:28:27Z","spotify_id":"0egx2ylwFp3rvs2dYOErwH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6374e5c01763026d9f5dcc3c05fe1a4c17a2c33e7a1dcc7beb7390f09c5ee55c. 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/0egx2ylwFp3rvs2dYOErwH.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/0egx2ylwFp3rvs2dYOErwH.