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 0x81bdc26cf7db065bb70fc736b360f55c3cd1aa7db25f0f6e7102321b87ebb02c. 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/b7b4a72d-a664-433f-99ee-45c2f1248143.json and https://artists.proofprofile.net/proofs/artist/b7b4a72d-a664-433f-99ee-45c2f1248143.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Wild Mountain Thyme (Will Ye Go Lassie Go)
Believe Me If All Those Endearing Young Charms
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 0x6676aac9abda65b4242c46377e171397bf858c4319423bb2c4956b3eb8ca9df8. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5fuHlidd7QXaLCGPGylTrl.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/5fuHlidd7QXaLCGPGylTrl.
La Véritable Musique Irlandaise - Les Plus Belles Chansons d'Amour
20 delle Molto Migliore Canzoni Irlandese da Pub, Vol. 1
{"copyright_id":"0xd6f90da3e083ad25bdfeaadedb884ad4d6e69f4c698081e8a01f489dbd5b0579","isrc":"IEAOF0700097","name":"I Loved The Ground She Walked Upon","registered_at":"2026-06-25T09:55:19Z","spotify_id":"3gcrVzeVlYlBqkyMh4SwGJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f90da3e083ad25bdfeaadedb884ad4d6e69f4c698081e8a01f489dbd5b0579. 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/3gcrVzeVlYlBqkyMh4SwGJ.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/3gcrVzeVlYlBqkyMh4SwGJ.
1916 Easter Rising Centenary Commemoration Collection
{"copyright_id":"0x4dc438634669bd7ebdaf8a3d0ec122c688b843e76c4351ae7611ba6c01346940","isrc":"IEAAR0800034","name":"Follow Me up to Carlow","registered_at":"2026-06-07T23:08:37Z","spotify_id":"3IKx8dtqniBeKhqANNI98M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc438634669bd7ebdaf8a3d0ec122c688b843e76c4351ae7611ba6c01346940. 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/3IKx8dtqniBeKhqANNI98M.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/3IKx8dtqniBeKhqANNI98M.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d9c466414f910b86c3327cf364ed3622a43bd650a76bc6fa7a7f7d3350d837. 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/684W0NzsO1bjtgIMp3b128.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/684W0NzsO1bjtgIMp3b128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc613b5ded3a546de00a0a94f5910dc6a805d257d77a43f82eff02710e37059d6. 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/5fL7I0UgFTlXGJIy2uRqpt.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/5fL7I0UgFTlXGJIy2uRqpt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7790a4695abc2d66040a13c7c3b951f92e8f504851ef0a0da621ca4766db0d. 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/4AsGDCBFjaBMqzYigt3o7t.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/4AsGDCBFjaBMqzYigt3o7t.
{"copyright_id":"0x2a58dcdc03944f384ff223c0fd80704a6717c01bd21a8c3a10cf078ae4bbdb4b","isrc":"IEAOF0500003","name":"The Lark in the Morning","registered_at":"2026-06-18T20:26:25Z","spotify_id":"66pws9lbw1WNNXRklZoQZR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a58dcdc03944f384ff223c0fd80704a6717c01bd21a8c3a10cf078ae4bbdb4b. 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/66pws9lbw1WNNXRklZoQZR.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/66pws9lbw1WNNXRklZoQZR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56afa02d0b2a14e00b32f6f9629383775b276c6abb003cbcef90a11bdb22c19. 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/0khSxevrOodrvO1HmGbnkY.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/0khSxevrOodrvO1HmGbnkY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6676aac9abda65b4242c46377e171397bf858c4319423bb2c4956b3eb8ca9df8. 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/7d809OgSoNEmvH2rlMWldp.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/7d809OgSoNEmvH2rlMWldp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdf125d7e9e7a9c8b0d8c8a649f4a08f499620c5ecf466da8be63f24eca1e86. 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/7M65SjkZFldc5ruG7etbHF.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/7M65SjkZFldc5ruG7etbHF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd529783eb536962f9fb49e2bf9e2449ce18343ab81c3b1645ca373a5dbf79c. 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/6oJp3kxZfOSO46BUsFk9ga.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/6oJp3kxZfOSO46BUsFk9ga.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d9c466414f910b86c3327cf364ed3622a43bd650a76bc6fa7a7f7d3350d837. 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/72A2CAkKKYUmuXgOlfn1ws.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/72A2CAkKKYUmuXgOlfn1ws.