1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638cb92f69bfe957386418abafebfe48e13ce43763f8198d970b3ff4e6f8fec6. 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/c3d0ff0d-90fd-46b2-9ed1-19f33b7efa51.json and https://artists.proofprofile.net/proofs/artist/c3d0ff0d-90fd-46b2-9ed1-19f33b7efa51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa99480e6c4e180c189528d689380ac61f41424e4e3bddf0a62ab78ff5e352ac. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68e1defa0a09ebfada66ba62d48b90f8c9a03833e508345568e3102760c8a48. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefae2fa10a7e21f9df22b4ddb612d0e3036304b1729edcc11854a5a189b416c8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cd516f4e90d280f81ae6deafe3c4f2a3478c0aa6abfd17c4d4899ada0633d1. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbaf1df3e2a0abcc6ef8ded0964994de0b9a15c071e64eb1ed0490dddd01909. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c25f13024eace857e01c110a0ed1e8bd8b58a65da82cc57f789426f34602d21. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976e05dcf59b1c929a58fdcc8ba870f3f0fe303837f21600f60a0b3180fd4f41. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f476fb612704f38fe14f520fc44da133ee79c4e4a50b00f1aa6df2d4b17db3c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63d233c666477e2fb0ace0b122e8671f631aaa64b59aa2f8c244f258f2ed7bf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbba4b0c9d550da7ef1ac8da974b5f758614c5a26e6454faa7ba732f968ca55f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4695f8357b7472994d9587f684ea31c290efb4f5c3990c8162dbceda284589. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ad312ecfdd261a8a5227ac15f7dbfa28bcdb53ed58349cbc728c4422ef4c20. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe435b6da65205d33a3af6eb3754aadbf682a43813572925c75b707e5af380896. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ccc2ddc557f4a5365c66bf577d29182d52a3cceee69d39149255681e4a660e. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4091862de1c41ab22683ad6643b35d8827017e0447bd8e11316dae4e6a5c5ef2. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031739c999b4528bc5f70033e141a5e9f8af2ee90015c02839a630b75ca5ef55. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560454952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b746564d47e16747bc8b08f800f7c4b20e8c987a158dbc9bbce0fda667e890. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560455007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dd11b6cf80253777330d12197d96c3c5cd7e707b9928ed1ffb5df439ede14d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560455025.
Suid-Afrika Se 25 Gunsteling ou pinksterkoortjies
Suid-Afrika Se 25 Gunsteling Pinksterkoortjies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65793e2954f57cb20c85937dc21e11b8cae915def457a0c581711353cfa0681f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23199dc388f6ad01472b28c3b3559c19013d29cc39b84bb02bcf7828c5f042b. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa087a7dc882a5f9aeb178e1f49b76b842b6da9668aa0cf2181e847c7a6918c9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3ef689a03f9835cf156fc14535a06cd2e6fc96b81001fb063c70e7b057e9b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fe1ea04b0560b4dea5dc54dd31312ac1c4e4ebbdc10b675540fa69529c4d52. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3870659fcea95781688b86b40382e66cb4bc06b6cb8f67b91e1d18a3d03fbef2. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596ab3ae5ea69d4060d4204110e07786c4b36b7eff922b3c3ca8b55ce46e06eb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41705d81afc11eba581a22364fed6342fdd6d2d9d04e67eee50f66f9ce427f8. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d2fec35048198500a26551245be9223726307f3edf41be9c1876c0dd429176. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1346152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018fb30c636845529a49ff9c4be435749fe547abcc8e621a4c416f9508d15417. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2260994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50be7e6f88969034b9eb92db9d8b566202f1bda509408361835ac1876872122b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2260996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e10e635cda7bdf98b82bf3f4f481c773a3af322c339efde30012bdf36f54f52. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2260997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e5ab11069524b5f820060b4ad85e8027e2cc092896e9fcac6f2a0635cbb7fa. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2559202.