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 0x847c9c4b354ee1fd27e722bc8727da177545226c934476ba25b625b6d2fea273. 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/9e7fab18-6df8-4ab9-8dfa-32c90c66b5b2.json and https://artists.proofprofile.net/proofs/artist/9e7fab18-6df8-4ab9-8dfa-32c90c66b5b2.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 0x3786d988f3688eebaee2e99297d0a9256e19664c0a0018366dd1648dfb676f1f. 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/4Mub97GoWiJab72AhOwmSm.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/4Mub97GoWiJab72AhOwmSm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049bb29b915a16e27b45e54ac6a0d2baad23b0dfe048a996536f424a3ad69c86. 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/74U9mTcuuv1B8s9i9WoA82.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/74U9mTcuuv1B8s9i9WoA82.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5d011d24f9be9ab66913c21b10f4d7177d39d876059e9184a6b1665f3324b1. 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/25WUVx5L2TyqPAo2RFIIVh.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/25WUVx5L2TyqPAo2RFIIVh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ee73cfe6af126888542b748b0b18a4a078087f05642c1f617f774a3b5befb1. 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/6gCnzhhx5k7g8ruoTaYhPm.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/6gCnzhhx5k7g8ruoTaYhPm.
{"copyright_id":"0xe9d515cf18e10c78efa8432417130cdc853cc13f7dcfe7a921990b6caf572bec","isrc":"BE8LH2400101","name":"More Than You Know","registered_at":"2026-06-06T05:43:12Z","spotify_id":"2askebCl8b3CcsOsgLHlKh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d515cf18e10c78efa8432417130cdc853cc13f7dcfe7a921990b6caf572bec. 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/2askebCl8b3CcsOsgLHlKh.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/2askebCl8b3CcsOsgLHlKh.
{"copyright_id":"0x38bd929bf913da499eac6ec73ad098429ac988943f5296bca67cd98c93fa16c4","isrc":"BE8LH2400057","name":"Hey, Soul Sister (feat. LoudNæss)","registered_at":"2026-06-05T05:20:30Z","spotify_id":"2isbI4gZlCYQX0RZoufh7Q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bd929bf913da499eac6ec73ad098429ac988943f5296bca67cd98c93fa16c4. 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/2isbI4gZlCYQX0RZoufh7Q.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/2isbI4gZlCYQX0RZoufh7Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee740c8438cef6253192d778b49683f31416c8f5d52d461d1d16aa2ae4971001. 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/4LXfyrdQeUgidcEitQAxQB.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/4LXfyrdQeUgidcEitQAxQB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5302dd466a455d43fea24bbf7c706f33738b6af1e5a4919ca2968592da81292. 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/5dYPn9pM9TUZjY1MBrUf2I.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/5dYPn9pM9TUZjY1MBrUf2I.
{"copyright_id":"0xaa7a2e40df896bf74da2610dd8e96d914c156a2bd6df9d711a7fc36f4da21f15","isrc":"BE8LH2400224","name":"Hear Me Now","registered_at":"2026-06-04T13:16:00Z","spotify_id":"5W79faqsqjL3NQ2YfnqUOI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7a2e40df896bf74da2610dd8e96d914c156a2bd6df9d711a7fc36f4da21f15. 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/5W79faqsqjL3NQ2YfnqUOI.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/5W79faqsqjL3NQ2YfnqUOI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5b9820bf3a2089ab5179c978c28fa5260d03dcb8267af9f6971b2d00245d4b. 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/280x2fsuToJfktA1U0TuZX.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/280x2fsuToJfktA1U0TuZX.
{"copyright_id":"0xfa59aaeb6beb3377d7acf7e9743c8d0706544a645a52c2d460394cac253151ff","isrc":"BE8LH2400104","name":"Just The Way You Are","registered_at":"2026-06-05T15:27:25Z","spotify_id":"5UTlaJts9YGcqFBboRRT4Y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa59aaeb6beb3377d7acf7e9743c8d0706544a645a52c2d460394cac253151ff. 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/5UTlaJts9YGcqFBboRRT4Y.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/5UTlaJts9YGcqFBboRRT4Y.
Adventure Of A Lifetime (feat. Dom Fricot)
{"copyright_id":"0xbfcc9d9b8ba2b672aee18076a0a9c0b7fd3665ac354ae155c14d55716fcdd7ff","isrc":"BE8LH2300367","name":"Adventure Of A Lifetime (feat. Dom Fricot)","registered_at":"2026-06-05T07:08:11Z","spotify_id":"72d2mfCsKATJbw0UTUopr6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcc9d9b8ba2b672aee18076a0a9c0b7fd3665ac354ae155c14d55716fcdd7ff. 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/72d2mfCsKATJbw0UTUopr6.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/72d2mfCsKATJbw0UTUopr6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cf233c31be0988fec1b5d265abef68c078b63a5bcf0121bdddada7f51d52a1. 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/4koxf6SQNfhgwGz2FWEPsX.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/4koxf6SQNfhgwGz2FWEPsX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2122aedc8fd3f4297530529dde84672e7308f68d39171b55909bef1c822ce3bb. 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/4CquKFEgYSl3ZTFpePkFYG.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/4CquKFEgYSl3ZTFpePkFYG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37999a7da47faf5bc4c04bc924f5d9e7e898eb04932978df5179b8dc0f797876. 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/5HAvxGYX1l1n5WHSiBWcnL.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/5HAvxGYX1l1n5WHSiBWcnL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f75bd6368d5571d11b7faddaa80dc3c7c5032547ff9a7db7963b125f2199c2. 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/0lixZ8LBf5ExbK7kfwe4qo.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/0lixZ8LBf5ExbK7kfwe4qo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ce4f6dc13f7cb56881d24bc6c726a1a1e3862631ad7d749a322c29827e510d. 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/3kRcpQ9cyCQjhx2lKKh1LZ.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/3kRcpQ9cyCQjhx2lKKh1LZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a1c9db020806e5b8e990453c562302709a58682f85cf23ceb0ecfd1ed3610c. 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/4kfTKl7WStOR90qxY2u2tB.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/4kfTKl7WStOR90qxY2u2tB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729f6007b0ab6fbc524b68a828bf7191333d1ff4df59d5cefb1e2a41551d1a62. 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/67ATAskdoaA465N4uGXiPc.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/67ATAskdoaA465N4uGXiPc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99108d36f40cb0399c6c99de9f5f6365224b30ca353578859eec23d237dce559. 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/3jQOAjy4uCfOi380V0zMNs.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/3jQOAjy4uCfOi380V0zMNs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec94754596f55836ee416868947e9db59ee0d8a56d0c6c471bf69f62d895d1e. 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/38hDiIvm3WRBKNJnM7krcH.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/38hDiIvm3WRBKNJnM7krcH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea288ce6ccf790a629f15cd4aaf58c53308a8026e2303b632951b1cdaf6f0e64. 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/7FjLnUhOGLR8VG6tfLH5sg.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/7FjLnUhOGLR8VG6tfLH5sg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4910cd830777f1fea705321d04f502710c59763fa76039d05a323c6ce9bf414e. 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/6TONxF5JWvRf2Rw7BcTZ4u.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/6TONxF5JWvRf2Rw7BcTZ4u.
{"copyright_id":"0x665dd7cd537fa1a2f2a28dad8de39ef903c70051d92e842792d52b3adee018bb","isrc":"BE8LH2400285","name":"Murder On The Dancefloor","registered_at":"2026-06-04T08:52:23Z","spotify_id":"7rbyFT85XApwFEQHA3DG5p","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665dd7cd537fa1a2f2a28dad8de39ef903c70051d92e842792d52b3adee018bb. 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/7rbyFT85XApwFEQHA3DG5p.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/7rbyFT85XApwFEQHA3DG5p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e507ef8e5301a6a5c7257caac2543aa5cb1d263016da6768d0be142e815cc7. 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/5PcQDHIkOz1E8ecgwRNa4W.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/5PcQDHIkOz1E8ecgwRNa4W.
{"copyright_id":"0xa5416f0b7e75aa6e1c42c2649438e5a1df580f672edd8bfdfc2f45ac44b3824d","isrc":"BE8LH2400031","name":"Island In The Sun","registered_at":"2026-06-04T09:56:59Z","spotify_id":"5fMygCxYWAoueOENZsEy9V","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5416f0b7e75aa6e1c42c2649438e5a1df580f672edd8bfdfc2f45ac44b3824d. 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/5fMygCxYWAoueOENZsEy9V.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/5fMygCxYWAoueOENZsEy9V.
{"copyright_id":"0x07e5959c88069c4e5fd314aa4b11ef6f161293ca028b5e064dbc5250136d1680","isrc":"BE8LH2300292","name":"I Ain't Worried (feat. Chris Medina)","registered_at":"2026-06-04T07:00:03Z","spotify_id":"1PXtoiWiW1QYPrptq4quXm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e5959c88069c4e5fd314aa4b11ef6f161293ca028b5e064dbc5250136d1680. 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/1PXtoiWiW1QYPrptq4quXm.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/1PXtoiWiW1QYPrptq4quXm.