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 0x0edb33d96fd14690a6b7f36311e07a8e547a34dd34ce6b69160a0bb10390be5a. 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/2273987c-1ecd-471d-be98-5e5c77338229.json and https://artists.proofprofile.net/proofs/artist/2273987c-1ecd-471d-be98-5e5c77338229.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 0x65701fa678b698b8ddb0ad74970cbfae0f09f78f91760314eab984ea398a4128. 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/4zEJ9xyUUkEQiN1CPTJOAB.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/4zEJ9xyUUkEQiN1CPTJOAB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3455c47e46aafc92afa912e4ee887158c9832e6ffc2cb19d7e55a567aac204e. 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/3pfQf3DGv4b2C9yESWYhr9.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/3pfQf3DGv4b2C9yESWYhr9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a36710657fa9a4e97f8f268ffa3169c6b005323026979185e96a6359a495eb. 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/3iIoUjQlWhu2dHJBGNM8fx.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/3iIoUjQlWhu2dHJBGNM8fx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3c7049cff52872348cfb5954527e95ea04175046d267c9aa8460bd8a052104. 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/2OPmUnAH2Cwrk91ATYnAEG.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/2OPmUnAH2Cwrk91ATYnAEG.
{"copyright_id":"0x9cef116289cd284fdedcbc4084676bf88292ee8cfb817aa13adf61091f512c2d","isrc":"SEYOK1928553","name":"Ordinary Objects","registered_at":"2026-06-05T17:27:44Z","spotify_id":"7FqsFGM81fclaRlNXOaCyO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cef116289cd284fdedcbc4084676bf88292ee8cfb817aa13adf61091f512c2d. 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/7FqsFGM81fclaRlNXOaCyO.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/7FqsFGM81fclaRlNXOaCyO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a19a82d61eacf2190e9bd932293989638af7331ff31c24480f07e401c305afb. 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/0qndlSq5rDIZTXEpvYHsYT.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/0qndlSq5rDIZTXEpvYHsYT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee47ecaccf65b548b29760c5c912060e617331c3526be616d94638e157df2135. 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/0T825IPXlOACKm6a9nB7BD.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/0T825IPXlOACKm6a9nB7BD.
{"copyright_id":"0x6d4fbe0db9ae7312403d2f9a7f7b38c4a4583cf11def71ef09dc4810ae32a186","isrc":"SEYOK1928556","name":"I'd Rather","registered_at":"2026-06-21T06:39:19Z","spotify_id":"1cechF5qsez2sjjMMdSt1B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4fbe0db9ae7312403d2f9a7f7b38c4a4583cf11def71ef09dc4810ae32a186. 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/1cechF5qsez2sjjMMdSt1B.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/1cechF5qsez2sjjMMdSt1B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2482e5f9be3e598fd45a449a77a5e66d0626a37d50e3ff1a45497765975247f5. 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/7bQP7TOMQT1AjWNRoSdwjh.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/7bQP7TOMQT1AjWNRoSdwjh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739bc9b631710f671401f79080d57ec16d4d3912e43c118ebb6d1c08745487b2. 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/749EL9ibbnQItKJsMWPm7H.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/749EL9ibbnQItKJsMWPm7H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3319e670b7cf01097060201f10a522855221878ad321b8949d2dc7f8901b91d. 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/4Z8myr285Sp84PAvgjSFH6.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/4Z8myr285Sp84PAvgjSFH6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef54b035d4238a66f52db1ff34232e7a4df3a497e6425848f26bfabe21d186c. 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/3xQC1KBLXKF7y9nKb1Une7.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/3xQC1KBLXKF7y9nKb1Une7.
{"copyright_id":"0x4d07db10512001bc50a7d58f45a215e7130fbd6ba050bb5f0aeb5ed27b37f5d9","isrc":"SEYOK1928561","name":"Road To Cynopolis","registered_at":"2026-06-05T13:23:47Z","spotify_id":"0OQTTFGyCqiDNeLfPTNY9P","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d07db10512001bc50a7d58f45a215e7130fbd6ba050bb5f0aeb5ed27b37f5d9. 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/0OQTTFGyCqiDNeLfPTNY9P.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/0OQTTFGyCqiDNeLfPTNY9P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772caace8c2fc65e1a9731fe816fd21282a31b6235798325dbe170c3fabe299f. 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/69z8jFwwut4RLyfEFgWQuU.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/69z8jFwwut4RLyfEFgWQuU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33809ea17b921f45179af121f4fdb01d415de5ad05270ba70fdaa659f7e75b6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6kr4CK2imxLSyg5wGVkWmj.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/6kr4CK2imxLSyg5wGVkWmj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d5371d395f270159b558c5e0eec05fea43027d6e24197cd50c71023ece9d46. 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/615nicptD0pj7oGgPiWW5x.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/615nicptD0pj7oGgPiWW5x.
Panzergun, Pt. 3: Underground Inquisition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57306d3f38680c453eaeba22a0859355f6b5676c806cd68ec41e01ca52c5f4f6. 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/50XTXUuqFNNCZFJquckkH4.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/50XTXUuqFNNCZFJquckkH4.
League of Shadow, Pt. 3: Judgemental Day
{"copyright_id":"0x81f73b424368d45c01e8b865aafeaf7c91d04895c10bbe54aad45715a8ddfbd4","isrc":"QZDA62117283","name":"League of Shadow, Pt. 3: Judgemental Day","registered_at":"2026-06-11T14:38:03Z","spotify_id":"2Gc1k5zdtRLqOC05ewrxZ1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f73b424368d45c01e8b865aafeaf7c91d04895c10bbe54aad45715a8ddfbd4. 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/2Gc1k5zdtRLqOC05ewrxZ1.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/2Gc1k5zdtRLqOC05ewrxZ1.
League of Shadow, Pt. 4: Penumbral Lament
League of Shadow, Pt. 6: Flash from the Past
{"copyright_id":"0x186f6b3d6076b486b9fef5dfcc58144c1872608aab2a85ed3589ff54ef134a97","isrc":"QZDA62117289","name":"League of Shadow, Pt. 9: Reviviscence","registered_at":"2026-06-22T05:33:09Z","spotify_id":"2ymsMixoafjWeTYaTiDNG3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186f6b3d6076b486b9fef5dfcc58144c1872608aab2a85ed3589ff54ef134a97. 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/2ymsMixoafjWeTYaTiDNG3.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/2ymsMixoafjWeTYaTiDNG3.
{"copyright_id":"0x4b42055d01bfab44e48b42dc2bb87e5f04544c7cc4ca7f16468e9878e52887d9","isrc":"QZDA62117291","name":"League of Shadow, Pt. 11: Ascendence","registered_at":"2026-06-25T10:20:10Z","spotify_id":"0HSkXosHxcx7OE48pT3Rnk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b42055d01bfab44e48b42dc2bb87e5f04544c7cc4ca7f16468e9878e52887d9. 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/0HSkXosHxcx7OE48pT3Rnk.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/0HSkXosHxcx7OE48pT3Rnk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a18463ace85fd2b1ac5346a77c484fd3733ec984492a08cb321178c855f59c. 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/5lStVuf1utjewRgoVykHu7.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/5lStVuf1utjewRgoVykHu7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23e9b494da5cd03f556454fef4d30a11b3fa42861c07a9ca5f39be2f86569cd. 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/3iSlQN0Ko49AQq1XabNX33.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/3iSlQN0Ko49AQq1XabNX33.
{"copyright_id":"0x6fccaec7a82db006c2a418628f5800bb9f99b17d5e7ca86f7c009cccb3c53973","isrc":"QZES82021497","name":"Deuce, Pt. 9: Supremacy","registered_at":"2026-06-27T09:11:35Z","spotify_id":"6Yi9EhGHLI8MSqUOryv8hO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fccaec7a82db006c2a418628f5800bb9f99b17d5e7ca86f7c009cccb3c53973. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Yi9EhGHLI8MSqUOryv8hO.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/6Yi9EhGHLI8MSqUOryv8hO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a18463ace85fd2b1ac5346a77c484fd3733ec984492a08cb321178c855f59c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/54ex1G42NENy5zgc2GAGrO.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/54ex1G42NENy5zgc2GAGrO.