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 0xe5134199847c9ab67be999452b243dcb89ed1e9359450e7e09ab7c52e1828407. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd6fb8ac-df06-4894-8c4c-82c35d1a97a2.json and https://artists.proofprofile.net/proofs/artist/dd6fb8ac-df06-4894-8c4c-82c35d1a97a2.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 0x83efc85a6ff656c8954ae53684d59a61f7d978909ce8a4f5993c11008685c92f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRMIM2362309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fc5b210f0e4eb65d6f2e5e9ad2a33bbcc414947c2aeb805693c9eee6399ecb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRMIM2362312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdc0cc6cd13ae76cb14fe1094c9c8e3a6f1d3beb16780b5061ebbd566471a28. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRMIM2457154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5570100b83700fcae06c0effdac4358c4631e99c7ab323b1e512a2f59a16346. 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/KRMIM2450092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f850da2c98833b4546b5b5ef6c25c34d3b5dac1ce41512cd58a8afca891a16. 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/KRMIM2445965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb56dbda8342d029ff116148dcb0e2e7365c998ee0b8ca3a242abb668d2e547. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRMIM2440007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7664310aa5c323d4c06f500c18974e40feb5391f3a3cc2c5fe9f6cb3912c3f8a. 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/KRMIM2440008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8fdde0ff342710341d01671e9cc56cfda9cfa93862a891622e559c6902906d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRNAR2235454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7876587d4ddefb3fa86f8de7a53a0d6b8d07e5adaca0d7e9773822d109f8a9. 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/KRMIM2103347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1b0a6243cf4916777301a89aa7aa98d047b4f74ae568e0de505c489295cb30. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRMIM2027261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc4d493f2ea070fa084d8c3930d04c87db1c7ad6e090a659706aabc3e3c0274. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KSA002401831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321ea312af3badc9ce0d4bb212087104feb9ed1fb302a5b3110600aa076c7ab5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KSA002401832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477fc851fecd969202e5820e5e27565ad9f321f0431f5ef2c220838695b13c1b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KSA002401833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea02110e3779c6cb33c2c8dd441e093bd1fe6d5a675a14472d065080c0fb4b5d. 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/KRMIM2420803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a9ae926150bd7b3bb3a76882874716e0915143a9932b8312c594fbe7efc2bb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRMIM2451187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7732a3a12d8e1b23ae2c47b967d9663f30e14833dc55046ed00186727ed0a1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRF632105090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28df03c4f920d096923c0549a518bb072ec64b9dad50224ef0c5856c3eb67c86. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRMIM2429152.