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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa364088198536b0678d6f9c32108c20acec94055107095de612d91d5a39f27df. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6209d321-cede-4b4e-ab47-02150ecb6f24.json and https://artists.proofprofile.net/proofs/artist/6209d321-cede-4b4e-ab47-02150ecb6f24.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba75b6548e3612c1c9b499d12c418fa4694b18af4b99dde7c6b21b2c2a23e52. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/GBLPF2503477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fa90d29f1904fb2bef2a81ed9c9aecf28a3d26aa8c65dad7195aae45a7b592. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GBLPF2503480.
Wuff (feat. Hauwa Ayawa, Lilin Baba, Umar M Shareef)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefacc26541b237c36095256b75fae29d5403a09ed4c7a8aba20f722d83a9a2a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ZA56E2315184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab032d3eebe2aad6f382e1aad23038b381d497fef0a360b8d3ff365503fef7d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ZA56E2416490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036550ea17d58b94740bb2557bfcc9dfc9b639a8bc627e37a48f5f4bd56767d5. 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/QZN882407405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c0d4c52dd8e12a0b11f6cfe9fc65fc33c266efa030eafd177d0dd67aa0fcdc. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:32:46Z), 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/ZA56E2526923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5999642e74d724af1a694a7a9e6dab906dc970b071ef98ff922e7498418a0b3f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ZA56E2526924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6169ca1b6c57dd28e49685a7ea7812545348bbdde3a2d24b410bb809666e74a3. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/ZA56E2526925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320cd10a9086957303c5433f5ab1634179c780c801b18cd99a731d67c1eb7007. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ZA56E2526926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e01f6d262abfdf8493d14b7cfc20317b9d92f1bcb87cc5831b098d6825e99d0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ZA56E2526927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b979e41774e8deff8009f9e41082f1ee2bde4f282c9362da575fd70340cbdce. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ZA56E2526951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc8b9166906751ea22f6549d5f64ae8331d8913447e68888429f9cf69daf1b0. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ZA56E2526931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ded1e7229bc4a26ef7aefa3e31f5cedafbb2ce7bf7edf7eb1a365f6989f588. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:30:11Z), 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/ZA56E2526988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61c2b5d46f7e8bef4c0471226b429048a2d3200c2fe1613eee8030a8d18cd62. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ZA56E2526993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66e8e58cf1fcd20b5c3b132e8ac39767b80c52d03477d401d413fcedb281763. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:10Z), 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/ZA56E2527358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664257969fa7dcc6f402218bcb979b0a2b7cde2bdb03c3d59f9fc0115c56a104. 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/ZA56E2527544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ad2eab2c172d365c0638dba094d9067173597a8c9178719917e61f52d7e784. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/ZA56E2527548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1064757634ff1198a5e98b552bc08832451e7424039e914cd45da5f9a37b425. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ZA56E2527549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01700490254a0a0cc7526ff39730dc47857f1611d434af5eebd98e6fe4881226. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/ZA56E2527558.