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 0x95381f4164f2be48f7c0128016d749418936663923adc27cb93ba2dd8814d803. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/378dd7d4-d2bc-4e61-a383-8b73ec63fa1c.json and https://artists.proofprofile.net/proofs/artist/378dd7d4-d2bc-4e61-a383-8b73ec63fa1c.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 0x12feb7c2d7aff01379f4569eee0cc99152d090ea4bda425f428badc3c967f2e0. 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/GBSMU2303672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0c841c39a163dca2468a89f3d535e9ab9790f8cca221c2189ef3c0644c3cb7. 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/GBSMU2303673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad44c1506a011ab5fb70c1bb3e76de86dd94534221009b9b2a0a349f048b6c6. 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/GBSMU2303685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e01265f51de9a17c57f82eadd838185c199344c7762b9981977abafd16e450b. 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/GBSMU2303686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485097b77744748771106bfb3707070e30d27b7c6f36227eb5f2690766a928d9. 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/GBSMU2303742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92f580d2282bba45f566f0f125c9e6d6cd2dde2a634ee781e6129093933213b. 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/GBSMU2303743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35563151158c2774298046e56b5b08406151c7b14d670594efd577c79526ec2d. 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/GBSMU1997114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096276d6d78dea77c0a9207c819647fe42e29c30a22554f733224544fe3ce5f9. 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/GBSMU1997116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aefb19002d73cf6348da8b98ea768dc26cd52439e7c724e1a7f9ea68301373f. 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/GBSMU1997119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5989bb019e3e7c83f4932ce81309487d02e569b76b56baf209c5d3b2ee0d38. 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/GBSMU1997120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e91cbe1409ff70b3979abed0fe793aa3bba9bf9ccb34122b9e7aa0f700908a. 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/GBSMU1997121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84f32e0bc336da50fff9112ef3671887dc566dcf927065f98836ffc0b06acfa. 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/GBSMU1997123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb106cc9393bde4f8e7f8addb3fa4632dce80e973a5ac92a9f09d383fbda959. 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/GBSMU1996453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b2e72a1302af8dd72c3fc9e4d37ff504be613582771b4f222702d21097d383. 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/GBSMU1996454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e78e45710411282160de8485eef4999ad1d4c37215ef4c30a25a0d7a72f1308. 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/GBSMU1996456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd844ea20c73754e193de62128c8fa74a1efe9a594e06795af0af7d294d9dd518. 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/GBSMU1996459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80f1752554e47b53f73e734de9e033b46326d6798169d2042a40228b510dedc. 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/GBSMU1996460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47a72272443c0c575fbe3fd5a5291363b9caa86465a44765e84dce6a5bd1fb8. 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/GBSMU1996461.