The universe comprises all of existence: all forms of matter and energy, and the structures they form, from sub-atomic particles to entire galactic filaments. Since the early 20th century, the field o
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 0x75d1f463fea040c1d5e9c4c69c656863da9062478765c71d3cabc720f5de6d91. 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/c79fc15d-6c10-4ec9-938f-abf508f52701.json and https://artists.proofprofile.net/proofs/artist/c79fc15d-6c10-4ec9-938f-abf508f52701.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 → 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 0xa94144eb1597fa61dd785bfc956c884ce42cb4c9cdb57b437948b03a7f51959a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAIN2412776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde11591ca5c39cde51a3629525520f9d6cbb83d2c5cb91572ebdf9231975700b. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/TCAIN2412810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebaf32bc14e4c3f32923222b7853799003365ba67374053a12bfeceeb5ea001. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:55:28Z), 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/TCAIN2412881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5582aea66f3abb8bdddfd72e3ecaa2856e817c77ca6f6ce1dff237f75edf83. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/TCAIN2412933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928e91be15163283b3fd48e82a7ffd8f0723504cdf3904736315af057ce98a41. 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/TCAIO2412945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec910aa90554d833b98ccb5568c6911f727950841458f3921c4d80843edc3c98. 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/TCAIN2412967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13284c04c9baccab55257eeaeeb9c1561a59c26f32d6e7302380be76b4f522da. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:20:41Z), 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/PLJ621300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e85f2c61f80612c4a03ed12fd6fa9ca0f2ba71e333a51f806f3591bc70cc9a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/PLJ621300445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb4a770a8cd2cf75ef17fe11ac6fdac6412a633249b60db2e4f680ad9e99486. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/PLJ621300446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6703773df43c05a690954197ba99c37bd78c6037f405252a96555ecd56f95e7. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/PLJ621300448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee84ff447fe87524f206d22a012fa867de7f1f173076df0f55f17e46fae9932. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/PLJ621300451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb506d41660c35f2c35d61e12be5cddf68de0bafd5f94cb1c37012c52e8f8fa4e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/PLJ621300455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d99e72650eba15875be0f0d48d94e1dab33e658781235178420a702e668e99d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/TCAIA2491326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b4a7476abadfa83867cf3baad3421d26fa60d91e3501d8adaee030530907ef. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAIA2491423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937f10b5123f43124e65d886df846703f4de5c675e66eb09f13536cfd18794cf. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAIA2491451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae07116cda234a074a2c5a1fbf936a79637ef11d3aeaa51e39283afedb9dde1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJA2456750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c5cc663a72bab60076d1d04c118ce1fc0f036e1b465ab9107c317cc8dc1d9b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAJA2456766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19365f61d728cad16a501e457f84b34414205fd8ed29e5b8cb30e3a537161f3. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:47:50Z), 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/TCAJA2456773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffafca773498444b13246645579a34ac9c9ed6fd0334dc282a8997b16bf55a9d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJA2457003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87c7b5c6d068a9d21ee89f28b217c43c893cd07a1b7d98282335752c531691f. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCAJA2456794.