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 0x8f0d95cd367af4ca1806032a6d39b9bef08e4c11165953617b53c80004d7f5cc. 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/9f4bc47a-d7f3-433f-ad5b-5e0dec358473.json and https://artists.proofprofile.net/proofs/artist/9f4bc47a-d7f3-433f-ad5b-5e0dec358473.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 0xe84d47e7c9da25219099dfdcc09e416bb22dd34fe1a21e43e964925efcd2668b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3T937E8zkVoR9IvXdLkNJR.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/3T937E8zkVoR9IvXdLkNJR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7623744bcb78e6129aebafd886f8b483f37fc2fd58e684534120d8279fbb2e. 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/1BULBccWFEh9wnr5DfIWKs.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/1BULBccWFEh9wnr5DfIWKs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc298cadcb56f1009c08dcdaa58f8d290a4b8141079cbaa94b77feaa47fe754. 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/3iyon7CSDKa7vD8IT0NEj8.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/3iyon7CSDKa7vD8IT0NEj8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d8b39cc53215fff0b42ff827abd8214c55c8de6a2cc74725e745f18696426c. 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/01TS6Oxvq8W9A2vtzxXsjH.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/01TS6Oxvq8W9A2vtzxXsjH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e4c75fc2546a20f75d5b7d1e72e89696ca4100e17e1003057f721832c6871a. 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/3Cs4nbahB6QPXhCX4jhOrS.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/3Cs4nbahB6QPXhCX4jhOrS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00599a0b22b66d55f3addd8bb5c8e5569144f27beb6ee173fc8b8f2d9da12337. 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/0BkuVJwFEjNdtYnid4JaUV.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/0BkuVJwFEjNdtYnid4JaUV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb47592b338cb22a706afb37c9f52db86e47d30d6ed26f43de438ce89588a48. 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/3apmiisbMEm5lZrNezoPVO.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/3apmiisbMEm5lZrNezoPVO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8628f0b2acd75d23bcb102cb445d240a0e8d944bf446a149a393679816de82d9. 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/3MI40wzZiJsHvVyrdCMgPT.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/3MI40wzZiJsHvVyrdCMgPT.
{"copyright_id":"0xa2c4e8de731b01fa3bedfe5f1501ead2066feb27858c4958a8bff322e87129dd","isrc":"QZHN91926109","name":"Coroas & Violinos","registered_at":"2026-06-17T21:21:59Z","spotify_id":"1eOdN7jIVkYB0IkZyzB2oC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c4e8de731b01fa3bedfe5f1501ead2066feb27858c4958a8bff322e87129dd. 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/1eOdN7jIVkYB0IkZyzB2oC.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/1eOdN7jIVkYB0IkZyzB2oC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d308d420e95099348592b5f3f4bf71b60db2d3798793a5cf4db92f39d6643c. 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/5ZbHtSKNKrSFgNfkCatOS4.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/5ZbHtSKNKrSFgNfkCatOS4.
{"copyright_id":"0xd220e4c1b426a6997e45d5b0da05bb4db9c23bb9626d417611e0b31750a35761","isrc":"QZHN91926111","name":"Toda Vez Eu Escuto Os Corais","registered_at":"2026-06-11T05:11:54Z","spotify_id":"5CfWd4qbOdJmA2TooWAKK2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd220e4c1b426a6997e45d5b0da05bb4db9c23bb9626d417611e0b31750a35761. 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/5CfWd4qbOdJmA2TooWAKK2.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/5CfWd4qbOdJmA2TooWAKK2.
{"copyright_id":"0x21308a0ffdef0f7950e298569e85dca4cfa2f4118a4df0e138f8b95d18ba46ab","isrc":"QZHN91926112","name":"Rei Gelado","registered_at":"2026-06-11T05:11:50Z","spotify_id":"2H6G90wLbNkozAzMq2AmpO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21308a0ffdef0f7950e298569e85dca4cfa2f4118a4df0e138f8b95d18ba46ab. 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/2H6G90wLbNkozAzMq2AmpO.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/2H6G90wLbNkozAzMq2AmpO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bafeb238baade2049892f8efb8395a0872660129b1b155b42c0247de9c5f14. 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/7JUoGgM9HFunK6VYdXwhRM.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/7JUoGgM9HFunK6VYdXwhRM.
{"copyright_id":"0x8c3ae2343872827ee90cbff62140da4550fade51d0d6ede192116b7fdd0b2d24","isrc":"QZHN91926114","name":"Feitos de Água","registered_at":"2026-06-09T15:53:45Z","spotify_id":"2iMewBLX96NwYVuxqqi2tW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3ae2343872827ee90cbff62140da4550fade51d0d6ede192116b7fdd0b2d24. 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/2iMewBLX96NwYVuxqqi2tW.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/2iMewBLX96NwYVuxqqi2tW.
Flow de Quem Já Voltou, Mas Não Por Você
{"copyright_id":"0x5aade842b9883beccdf2a56359dd9348130751153113dde4e32ffaf52fff2b20","isrc":"QZHN91926115","name":"Flow de Quem Já Voltou, Mas Não Por Você","registered_at":"2026-06-09T06:21:19Z","spotify_id":"6H508w66mL3nCXsqj7UwnU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aade842b9883beccdf2a56359dd9348130751153113dde4e32ffaf52fff2b20. 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/6H508w66mL3nCXsqj7UwnU.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/6H508w66mL3nCXsqj7UwnU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941518a741d00e6379484d82dd2ac0b503c3734eb6014b84252f7c57bc67f0aa. 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/63LUTMAgKZFqW4etcFXWh8.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/63LUTMAgKZFqW4etcFXWh8.
{"copyright_id":"0xe0eaaee299058216820514e2d0c0f2c98de3b4ff2adb5c66a15af19c516b24cc","isrc":"QZFYX2242238","name":"Izuku Midoriya - Lairton Teclas Remix","registered_at":"2026-06-26T04:06:33Z","spotify_id":"4wL9DcxCT2zIntezDZVTj2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0eaaee299058216820514e2d0c0f2c98de3b4ff2adb5c66a15af19c516b24cc. 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/4wL9DcxCT2zIntezDZVTj2.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/4wL9DcxCT2zIntezDZVTj2.
{"copyright_id":"0x2bbf3f8fc134d595b9feb634fda9769b75847b77b206fa62fda6f08d457fa019","isrc":"BR8DZ1900014","name":"Vidaloca (Boss in Drama Remix)","registered_at":"2026-06-20T11:42:04Z","spotify_id":"1DM8LsqbXffA56qGvPKTww","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbf3f8fc134d595b9feb634fda9769b75847b77b206fa62fda6f08d457fa019. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1DM8LsqbXffA56qGvPKTww.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/1DM8LsqbXffA56qGvPKTww.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c72a283071708adbe1b50ba669bceb852f2fc860bf831ca8ff80c8b2ca8f69. 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/5TQd0Y4Y247bK3sm3NRIqZ.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/5TQd0Y4Y247bK3sm3NRIqZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47727acdb65b6f2cfb9e515bb561add7c1c84675a4bff322cebaafaf5fa2e852. 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/5Mv1Phiq4v5TPFpLEfcccJ.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/5Mv1Phiq4v5TPFpLEfcccJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb97922598e0a81e6a4d3512fb53cf1fbee0a8428d63505806748eca9327a25. 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/0QRnYbGiAwdpe9jfA6YF6o.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/0QRnYbGiAwdpe9jfA6YF6o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f5c36252068a139bdba0e7f105905a08fd1ad23fcfb562519074d7258a6370. 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/6PsLgoIxjhTgRpPrZ1QD03.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/6PsLgoIxjhTgRpPrZ1QD03.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f17a1faf7ad9b232d0b00f2ec25d1ff48d9f6d6b2a545416ac0371b13f98ecb. 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/1FLFQBah9xsUn13FtYkBLM.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/1FLFQBah9xsUn13FtYkBLM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d345a37f2652d5406c88f0b3b5098d1593b075764e4663abdace15677a559b. 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/4tJklWo2MaSlxSQQlwX1Ec.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/4tJklWo2MaSlxSQQlwX1Ec.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b94b0d7f7763e95742c4efbf17f8025ab47d2353213ec37be1254feb18fb79b. 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/4QnS0HvmsR3dBWEXYajy4x.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/4QnS0HvmsR3dBWEXYajy4x.
{"copyright_id":"0xac894ac136a91fb11cc28367686beb32acb23d614281156baf3207f0edc4e6de","isrc":"QZDA52129447","name":"Izuku Midoriya","registered_at":"2026-06-10T09:03:02Z","spotify_id":"0pwOjJMjCSqjZycInZnU60","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac894ac136a91fb11cc28367686beb32acb23d614281156baf3207f0edc4e6de. 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/0pwOjJMjCSqjZycInZnU60.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/0pwOjJMjCSqjZycInZnU60.
{"copyright_id":"0xbf5ba70e4444f5534dff5498dc2a93de9dc9fbaaea315de1988dfca1e567b8fc","isrc":"QZK6G2408859","name":"Victor Morningstar & Nathaly Willians","registered_at":"2026-06-11T19:45:34Z","spotify_id":"4N4yfEMLG76qkcMtdzurdm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5ba70e4444f5534dff5498dc2a93de9dc9fbaaea315de1988dfca1e567b8fc. 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/4N4yfEMLG76qkcMtdzurdm.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/4N4yfEMLG76qkcMtdzurdm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ab30a32fe688a99050e5c7cb7679eb9f7d76889c62eda754ca694eee7ad891. 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/5l9hsfsTUaQbW4sVMmrWTs.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/5l9hsfsTUaQbW4sVMmrWTs.