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 0x5f0a53f278d3cd60ecef213986b96f7a483ed988ae356471b1a090c3be330360. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9aefa569-00cf-4c5c-ae60-8c5e8a5594b8.json and https://artists.proofprofile.net/proofs/artist/9aefa569-00cf-4c5c-ae60-8c5e8a5594b8.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 0x05e6400a55b1689d721f262fdd45769531cbefb73c5362748127d9cc67931e41. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCPT1410040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cc45baaab6d3070576a8e761b9b4691e67db5bf8a5f59b29cf8ee4275f7792. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCPT1410041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb378e42797b953fbe380cfe3300316a432d17a5979e63dd74954fbf4d1e66651. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCPT1410042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02bbea5a041fd50016af5668ce24c6494f8ff9a12a9da393c6df4cd1f52ddc8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCPT1410043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e4093573265c71cdd63aac01996493e7b8663124dfe8f399371d337635ef49. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCPT1410044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb763c1a3147c8b87944d922a3c858bb5a62f6591be436a8d7aaeb361d71c405. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCPT1410045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210b869f43647b13576e1f615ceffe0bf83f2487d472485a92f92275088b8e1c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCPT1410048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819335a61d548dc6680208febf646cf659422e26e326319f173af377884a1483. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCPT1410055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfbfc57ecb9bd138c56fe0b63a1cf9816021c5af46ef019bd537d0dd09451ed. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USCPT1410056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5335810e387a98d24130069189a19db55c37a1143ef15a226f677ad878b3f812. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCPT1410058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c9ead9a92cf7fc932db35767b307e3e13db4b2660870201912a2514a07d98c. 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/USL4R2479456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabefc1fc2bda581d2ac432145133bd64bce70a1ab8876ef821e0eae93f6f3b6f. 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/USL4R2479458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01666e951775c2d5cb751e3c3a4d99a0c6d6ce37c03884b273d0fc7972a7a2e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USL4R2479459.
With its Mouth to the South & its Tail to the North