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 0x29ad35e5c4eefb9d3290c68694d59987de780d20350d5c6ccb93c446735ffa1a. 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/80a7dbd3-999d-4de6-a982-d0d9d2fe3168.json and https://artists.proofprofile.net/proofs/artist/80a7dbd3-999d-4de6-a982-d0d9d2fe3168.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 0x0aa8608f52c6df6c0d18d8bc861b51c3907a3119100f5375cc5644008e31f521. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/FR9DZ1902239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9475fecf8d9161f0bcd89e1c9142bbd03536d06d25b462e87b76ca384fa12b4e. 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/LBA132100409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f0f8799869a7e7a0cf251149b1497641fd95aae0243b2d2cdda8acdfde5cdb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/LBA132100392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe512246da2f0ec343542d01875b6b707da0df8a56190eeee6a7063b381583acd. 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/LBA132100390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad949dc4a13ef2e388599ffee6713890729bacf2654a0739ee7a80ec1fa7bb96. 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/FR59R1893933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a91e3a600476d7ae2848fc6cdaf36918f1bee9b830e457132459fdc6de0ee0. 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/LBA132100386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084dc841f146723cce9ec8e717f588447cf2d764b1b2226400ea028873cd6784. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/LBA132100384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18afe0d0d54a1032e36d7358131f5d914af5b9701446eeb2a9dd23f205dcf031. 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/LBA132100382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca4ca6a67924e4f7a4296e46cbb8edcfb67e65c2a0eb52c5e0da3b02db26c98. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/LBA132100381.
Nebghik Ou Manbiyanhach (Live Fekret Sami Fehri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547b74711b857833390e57de6f10f4981389316c25f74d866afd5d183c9ae669. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/LBA132100485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196ef30a43a56d53dcbbc42d1383220c4ddb1f697197f079e8c376b68ff6e10c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/LBA132100490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecb9922a82d584fdea1594195b5c0dac14aa4b82ca2da72318e955d8d340b1a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/LBA132100458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d23c9bb28d1d5a5447b7110632aa0b9c48ea4453bbb4c51d8e409b18a9a491. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/LBA132200471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f7ce3026fd551ef81476a8a732750ef3a90c11e86d2bd63a7408b51c5b81ee. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:22:58Z), 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/QZYFZ2463732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf557c970051baf03ef9ace8a2f5c8f7425ba3f04e9e84265beecaa133bd8815. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/LBA132401046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ee7455106a4b8276cad343bdb6e4214a742d435cf26614786643a9239df3b5. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:38:48Z), 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/LBA132401873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d5cf18675bb6b6debb51fdd125414f6a3fe52475a34afe4cb9ee06ff4bfeab. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDA82529541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2026c5d2b6cc9efb4ac2d19a1417063b48ce137e08201a9abe732ff77c8e5f5. 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/FR2X42539915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330595e571fd5d26d4b1c4c28978418616cfa845921fcc62f345ddff8bcb1494. 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/FR2X42595094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a256b696e003e3b6cf26b5af6747440801374706166ea729d1ed6766d25ba3. 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/DGA052540064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327b8a3b1b536a435df1ab0fc206c2846f845612a9c3915823d2e837160a01e8. 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/LBA132501248.