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 0xf5dc4f17289eab8d738c4a1cb5d6bab35f2b379248f6ca6d535ef70fba223f18. 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/75541dd3-e3c3-47c2-8317-cfa2cbbcaea7.json and https://artists.proofprofile.net/proofs/artist/75541dd3-e3c3-47c2-8317-cfa2cbbcaea7.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 0x5d6174fbd213ebc2b9c3302359988bd562fd74bf67b283999edadd84ea808069. 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/0sSLJTfrmlMt2kgCCAPZxV.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/0sSLJTfrmlMt2kgCCAPZxV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa506995124360ff57afa12c217057b1e405b361fcf2ad1ff7f62405fc25ca65b. 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/46VCukHPsGP3l65sXiErzL.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/46VCukHPsGP3l65sXiErzL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b9e961d82d64435b6386fd2975daa96b6590b021b819252f30e729b2bed775. 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/02yaWPsxdeKY70H9m4uONI.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/02yaWPsxdeKY70H9m4uONI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0accc37ab7161dbf482e9f8cb8f9426b048e2aabaee395b67483bd35569f8d2. 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/1boMTh5HEfAKdXSjyGll2v.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/1boMTh5HEfAKdXSjyGll2v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76727cc12d9b3d2feeb0136606670e4249aa6b3901f38f006f97860c0b6c348. 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/7dLqhygzj3uuS32jQilHPy.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/7dLqhygzj3uuS32jQilHPy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963eb6cc8cd27d602d06ce2dfbf61bba87df45e1488e55d0f29a61675151a91a. 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/2ZWiYlfME5IqOOI2ba5cWg.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/2ZWiYlfME5IqOOI2ba5cWg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153550c77af03b218bab8712393021b0bf43e4a292056c43e97948a3aa909499. 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/3miTSu3HgxpO7uPhML8uQr.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/3miTSu3HgxpO7uPhML8uQr.
The Bloom Series Vol 1 : Fundamental Frequencies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c60277d532dcfd6fc581093e69b52722483cf924b4181fce366aa06e2a9772. 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/4YDpg6V8jAXDtoBuk8179H.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/4YDpg6V8jAXDtoBuk8179H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50815d212dbd6113d743741bf5098a995febb23002f81b79d6a450a9c24cf65. 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/5FAWLZ8McCgrGAISQ0CWwJ.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/5FAWLZ8McCgrGAISQ0CWwJ.
{"copyright_id":"0x15aed9dad235e97fcc87890dfb187f76d47e56d9066b63c55c271c5767acd02a","isrc":"USHM21919349","name":"O'er the Land O'er the Sea (Live)","registered_at":"2026-06-18T14:55:24Z","spotify_id":"2TxpoVGlUy0C9PuseTBAZN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15aed9dad235e97fcc87890dfb187f76d47e56d9066b63c55c271c5767acd02a. 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/2TxpoVGlUy0C9PuseTBAZN.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/2TxpoVGlUy0C9PuseTBAZN.
{"copyright_id":"0xcefe163cc280940f0b9b520251f31f3e0f8ee94e86a5873c17990e3af06ef625","isrc":"QZFZ71945979","name":"Stromboli - The Human Experience Remix","registered_at":"2026-06-07T00:29:45Z","spotify_id":"4NZW48bF8tcwmS0eqrhg8X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefe163cc280940f0b9b520251f31f3e0f8ee94e86a5873c17990e3af06ef625. 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/4NZW48bF8tcwmS0eqrhg8X.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/4NZW48bF8tcwmS0eqrhg8X.
{"copyright_id":"0x833053aefb99901bfe5b03526db8ed75852b44fa78a390e04b18a2887a9a657b","isrc":"TCACA1496086","name":"Caminando - The Human Experience Remix","registered_at":"2026-06-05T21:13:25Z","spotify_id":"56FbfRsNKkkDgDthlSuh7L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833053aefb99901bfe5b03526db8ed75852b44fa78a390e04b18a2887a9a657b. 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/56FbfRsNKkkDgDthlSuh7L.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/56FbfRsNKkkDgDthlSuh7L.
{"copyright_id":"0xcca8bf96b7b51e31cf4a6a7775296abc506150f3da5e23b5ba6df530cc99dd83","isrc":"TCADX1883213","name":"Indigo Sea","registered_at":"2026-06-05T12:11:46Z","spotify_id":"6u1bJVM3f8AvEfGDGpkBSH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca8bf96b7b51e31cf4a6a7775296abc506150f3da5e23b5ba6df530cc99dd83. 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/6u1bJVM3f8AvEfGDGpkBSH.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/6u1bJVM3f8AvEfGDGpkBSH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd44100e286383a84673cf228a01d43681e72d2276e98eb2c073be3f018f3603. 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/1ffSj40TYVjofIrJhCMfMH.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/1ffSj40TYVjofIrJhCMfMH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e95954f89c42f0d66c7b945cf8115d07e1102212d9cbb0c9391fae314ed9b32. 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/3FCICgO0kndQ924rV5qyw4.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/3FCICgO0kndQ924rV5qyw4.