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 0xe7d6a3c8c6b97d34b8d601d6112d2f9c327e5213a1ba9ebbfc8ca7bd1b4eaece. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92bfd6a3-01f1-4865-bb2b-630ae369d6b7.json and https://artists.proofprofile.net/proofs/artist/92bfd6a3-01f1-4865-bb2b-630ae369d6b7.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 → block OTSBitcoinBlock must exist at that height 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 0x1b0ac92c3680c9d55ed27a6bab50cd5ac8d2622364b606f5180689225b913518. 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/FIBAR1200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde02422942e4ad9ec0a5eb9eabd01f4e18b8d6e5ec91d40b48235cecb8ca1d2c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SEYOK2431521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe2f24b74a42e3210f287a28434fd3602850fd6b850d064720b55af609350e3. 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/SEYOK2301755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1e5a12a0ce00b5c2cf9302f1234e817ce3448f21c8bf3d0ccbebf8957b2f3f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SEYOK2203495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0f21c21fcd8034d8afea300bdd473c0a01968c2fa5d8ad467527c4f1f13a6b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:11Z), 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/SEYOK2400850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1449dc462a252a8aaaf94a499d002100f2274e82ffdd8cd728494feb302d53. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SEYOK2047724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde02422942e4ad9ec0a5eb9eabd01f4e18b8d6e5ec91d40b48235cecb8ca1d2c. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/SEYOK2431521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fec8afeb66f9c5533fbc61e5d823554e47ceff8c914820ffc07ee6deafb2fe. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:28:50Z), 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/SEYOK2326037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56aeb9c75de4674570626a8c27379296cf03f0dbd0cde07817a53a7871a93a4d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FIAAP2504902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8798589a0f16d585e0b793df2f97511fefad8cee1afdd103e72504c09b782a91. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FIAAP2504901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56aeb9c75de4674570626a8c27379296cf03f0dbd0cde07817a53a7871a93a4d. 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/FIAAP2504902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b9a51e6e92e48bcdc8c73b67e1c22e7660bafda4af535e4b47b0d4ee099937. 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/FIAAP2504904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a594895494acd822ca2c3e6f8b54771069f2f67c552b96a49c65747fd2262ab. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FIAAP2504905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d262e7ada33db7e98248f5ba2284e9157f6d63ba45af7d3407df21bc56149c. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FIAAP2504907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dfd856610cf466fbc81bf73dd99fc25d20286c9728647966cafeda3f0d8b5e. 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/FIAAP2504908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3003044d9495ff8b04f5c7bc5390e174b1fdd9145b3d0407787bef4f85bf0cbc. 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/FIAAP2504909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0ac92c3680c9d55ed27a6bab50cd5ac8d2622364b606f5180689225b913518. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIBAR1200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bdbcb70f77750159f0784c0c639d5e4e260d92a85a28d21b4407440f3033c2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FI3CM1900010.