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 0x143be5b05e3c4edb6df45a196a383e2a51183ec4ef1669d72a2364c3eab51d3b. 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/4f72b781-9573-4596-87f4-50462cd74847.json and https://artists.proofprofile.net/proofs/artist/4f72b781-9573-4596-87f4-50462cd74847.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hidden in My Heart (A Lullaby Journey Through the Life of Jesus), Vol. 3
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 0x9eee754df4af9511ab4cd857b7574de1dc0467a602a25580973746e8a0eab3b7. 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/US8CK1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f663ef4d4be5db3a7ea4b97cb2b5daa434b90e68fe415128bfc79dc22d92f9f. 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/US8CK1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717001502041b172375b5f51c587e81e0f02f17c6bdad36de26a052ae90a3276. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US8CK1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3bb2488a28a1372a958190f7cf8baaddc44c3422a0d135a208b89a358f0350. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b00f086645d046091a91698b29d1651721a7471109a889c3f7206febdea8bc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996d7e92c0367cf112f83705f839753853d734b1075e4af8887df0ad56ed0bc0. 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/US8CK1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd546a20ec45d4167e20154e6258a7b8b808be7c6c680395e8bd52307c63607. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b7fe5db76b15b9efcbdda5acea9c118a8a9eb1cf82ef7c7e163c9f2a881a10. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d11400335b602d38c3abb3f834af575a3db2b9d19a34537935b8fd8edc156b1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba12a3034c71c25717c0d04629923c204d9bf2573757e87159c4b834d1ccc97. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US8CK1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab23056618ddd5eabaf29d87b173b6b3c501f16976f7d38118e87da31c57ee83. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US8CK1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f04f17646ebf5f11c3680b5d3f7aa9249673601035c11433cafc6b5404db9b6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301b0a8fe5bf8264936b7e9bf11728d6a44a0b918bce7229c09a0bcc47e76565. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US8CK1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7b75ba1610f4280c016904da2a391a497c83e80d604036ca54a7b048ea154b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US8CK1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca6073974794cf68206427a3a20dde820688cb551ee70e5fa1a6d65161865f6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd96cfa77940bc4c3c96b215d47aca24ecb9e893929a34e11b1b0d7ad2b42ca. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e6850103dbe6d53e921c2860cdabbec25a80818bb50e3d4e976f1395b1bd47. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af9833e8c98c97d256efeb049319c7766f34506573a4f9bbf75c1061c091268. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US8CK1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0497230874800832eed5034968d93c78b0f8be7f9cde4a6f47c149f78ca94379. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US8CK1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68627f6f69fbdfe633a1268afd47e88bc268bfb48a632279ebf54d0e6659fc16. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US8CK1600007.