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 0xca6f6738d37df0032e255c2c11a0d7ee2974ba5a8811c527e17b62253ffbcc7d. 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/28755c33-194a-4293-8f9c-6cc65337d493.json and https://artists.proofprofile.net/proofs/artist/28755c33-194a-4293-8f9c-6cc65337d493.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oblivion (Original Motion Picture Soundtrack)
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 0xd35ad560482c14c1e2895fb271bf3e5bfd9bc8ee160fd69bc70aacae79ab8cca. 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/0v9Ud7xm4hiYEFu5nKcYzC.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/0v9Ud7xm4hiYEFu5nKcYzC.
The World Es Mi Familia - From "Coco"/Soundtrack Version
{"copyright_id":"0x6d48ffec6dad6d3466ce4fbf80fe19a7ecaec0f366813995c64b775850ca7c35","isrc":"USWD11783646","name":"The World Es Mi Familia - From \"Coco\"/Soundtrack Version","registered_at":"2026-06-05T06:56:25Z","spotify_id":"6myQI0BFJNyW8MKkNH35Fh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d48ffec6dad6d3466ce4fbf80fe19a7ecaec0f366813995c64b775850ca7c35. 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/6myQI0BFJNyW8MKkNH35Fh.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/6myQI0BFJNyW8MKkNH35Fh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1c654ec2b95273379d033e085bf0dfaaa9b7b1c13c75e2c821c0b00a2a7837. 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/5enkqK9P5NU5SofFUOl9e6.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/5enkqK9P5NU5SofFUOl9e6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28451f00e9681d299f6afc2e70aa047668e3116132c75f8999efa2efc62d2ad9. 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/6TXjm95ccVAvzv6QeW1Z1j.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/6TXjm95ccVAvzv6QeW1Z1j.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b331e6d03d4904e1b582dc17d06e772de7f18ada26e37965b57dc752bc05901. 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/23hwmf8pb3L5ZP5c9AU8hn.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/23hwmf8pb3L5ZP5c9AU8hn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac143da0c483d30d10743982ec37427fa99427cf2dafe82dda5e31205a1612a1. 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/1ztl4JF98F6Q3qBDYcbsuf.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/1ztl4JF98F6Q3qBDYcbsuf.
{"copyright_id":"0xef2bd965bf623c68b257de1a16a27a1cf72ddcb4ca124bdbd572c031a5e5f2f1","isrc":"USQ4E1300625","name":"Undimmed by Time, Unbound by Death","registered_at":"2026-06-05T21:30:51Z","spotify_id":"42HVD6SpPhX7yUrtp8vKwX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2bd965bf623c68b257de1a16a27a1cf72ddcb4ca124bdbd572c031a5e5f2f1. 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/42HVD6SpPhX7yUrtp8vKwX.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/42HVD6SpPhX7yUrtp8vKwX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15608c63a3075d960f2f532ff3df3b0c69c273c401b34d9834c4cc1d80aa65f. 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/56yeEws5o3M6ZNJJQHarU4.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/56yeEws5o3M6ZNJJQHarU4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d15642d1ace04d4491896f7a06566a4f0075de9a8db16ed1751f83b7fe30f7a. 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/1TfEXMKxFXj3T48XnzSX0O.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/1TfEXMKxFXj3T48XnzSX0O.
{"copyright_id":"0xc2e2f2bc45b0adfaee5a1bd0becc5f513a870b11f38871a97887eccaf6d41f5d","isrc":"USQ4E1300619","name":"Raven Rock","registered_at":"2026-06-05T16:47:26Z","spotify_id":"0NXvmibOuzAssQdGOUtLoJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e2f2bc45b0adfaee5a1bd0becc5f513a870b11f38871a97887eccaf6d41f5d. 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/0NXvmibOuzAssQdGOUtLoJ.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/0NXvmibOuzAssQdGOUtLoJ.
{"copyright_id":"0x2526a7801f344cc46ffb5ea0977ddc9d622225165ff234cfd9a8fd4608c9eb7e","isrc":"USQ4E1300607","name":"Odyssey Rescue","registered_at":"2026-06-06T17:13:16Z","spotify_id":"1VStyTXpzVz2ddcKNWUSuf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2526a7801f344cc46ffb5ea0977ddc9d622225165ff234cfd9a8fd4608c9eb7e. 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/1VStyTXpzVz2ddcKNWUSuf.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/1VStyTXpzVz2ddcKNWUSuf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf197679b17353e4816744da0dfec54542b4454cfc2e62f8eda433a826aa9d9f9. 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/28HNVo85hkKziWWA0Chhzd.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/28HNVo85hkKziWWA0Chhzd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28aa58a55238c7595fca818d30de826dad0f86ecb94d6564cab7972d4d721722. 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/3NR5o4kKsmMsQHF86xOAK1.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/3NR5o4kKsmMsQHF86xOAK1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799d1acbc90a7613600ed64193e86606f24eda4da4c03025f203be2280594180. 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/6M3hRvF4T0NxAYGacobllf.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/6M3hRvF4T0NxAYGacobllf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0511567f87229b6dce890b88616e2c651ab2c6014c6302f37a76bcf6635fbf. 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/17SYLzau1wtDByUdmXGvjf.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/17SYLzau1wtDByUdmXGvjf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88c17845c2a22e61304e504853088f374110f4fd17cf0368dab8a28e53f973d. 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/5EVERO2jvaOTCap5CCaMhi.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/5EVERO2jvaOTCap5CCaMhi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2921a6c4a080ff9c51dc7a6d4536c2cd4810300c23349c8e90a265f738bc0a80. 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/1BvYYCzcpN6ijXJC4V8nID.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/1BvYYCzcpN6ijXJC4V8nID.
Oblivion (Original Motion Picture Soundtrack) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b331e6d03d4904e1b582dc17d06e772de7f18ada26e37965b57dc752bc05901. 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/7wG9nLas18kZL6kjIn32I6.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/7wG9nLas18kZL6kjIn32I6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1c654ec2b95273379d033e085bf0dfaaa9b7b1c13c75e2c821c0b00a2a7837. 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/2rtbG7o8FkxbisplneTLow.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/2rtbG7o8FkxbisplneTLow.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ae006e215113b61c8865a6fce81bf35b15bd3ee1b79aee97a31d369073e2d2. 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/24kkOI4FZCUwAGdVIQr8jA.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/24kkOI4FZCUwAGdVIQr8jA.