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 0x0db1f162a86c3d5d0a20777b97d211b033d0174153567e8a534b6d0da4db344a. 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/0efb187d-3082-4893-9d14-5ae0fcca2a11.json and https://artists.proofprofile.net/proofs/artist/0efb187d-3082-4893-9d14-5ae0fcca2a11.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 0xa07925415be3de622f17fa38f105bc8efd9d6d82e4ff53de2fc12c7eccb8b28b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZLBC2513711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cd7d14be2cbe0cf22be9567ee2eebb4bfc259afd2eec0826b9a48c8b6106cc. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:48:09Z), 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/QZS642316009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea18402cf76b034969681e77e1d28f62cb6774a0061bad0e891baf685df1cecc. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZMHK2349114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a8aa7a48e89fec2da448d73b0b68c9d7c7c1c82f928e22e95005c5438be69a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZMHP2300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18fb8cc07581f05c01d53d993d0d7b02807c81ba6344e9d23e7427531cddae0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZN882327720.
Mostafa Ryad - Presents Last Night on Earth
Mostafa Ryad Presents.. Last Night On Earth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cca6ec678dc747e4594d84797fbbf37e238c966f9ead0b76dd0e1d115e9ee8b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZMWW2350798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec359f19f3c2fe61a47a7fd7ea96e7e7b9391bad16cd709ed0a3fb1d9c0a56b6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NL8PU2300423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5602878fc3bd680706ca6facb2b9f1ff0a9ab91ac529eb001fc0290f188b8a0c. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/NL8PU2300692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5602878fc3bd680706ca6facb2b9f1ff0a9ab91ac529eb001fc0290f188b8a0c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NL8PU2300692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a3be32f37e0ad76320f79b31c47ece381c259815c7df964f08d9ae38ccc215. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USL4R2493407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf431041b5ebfce09b8c60df4e6fd5690df9cb03e6c2595e3c8edc7c2bdc1e8cc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USY242409385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf431041b5ebfce09b8c60df4e6fd5690df9cb03e6c2595e3c8edc7c2bdc1e8cc. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/USY242409385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a596218da9def46f8a27282eec7a9bd5ac9557226d7b5544895a2e267695a80. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USY242409383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eda4a78d9f2c1d607c9e0623aea3c8ff1678fc30099068f61a07b6a3d372075. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USCGH2569197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf5e729bb0663ec7e4b5ebcb21030ba09f56b74e4cd36712a47d12b0f276beb. 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/QZLBC2505244.
Mostafa Ryad (Presents Last Night on Earth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603b7edda0d6ad540664472de8df354c4120d6003ccfc520659c9319a1f39b10. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NL8PU2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1f105b3aa0b2c716654d262f5fd15e30676af830fbfb033e5fa356e0ba0ad9. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:21:25Z), 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/AEA2M2500518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ac992f9aaa994d840de7a944e63f2c22f568d10f99fe4f1ac750f07b2e6707. 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/QZLBC2508890.