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 0x0d684ee049eb386e1350b1a9472b2c80a6d4af78b87e8eb439dfe30badd4e023. 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/1a877c0e-d216-47ce-a5f2-3a2aa4395e27.json and https://artists.proofprofile.net/proofs/artist/1a877c0e-d216-47ce-a5f2-3a2aa4395e27.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 0x921d877f404a1ea28772e9039d41e639e9a2a1c415c1c81731fdf3dfb8db8f77. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QMBZ92569156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9035f32f354adadea958191efb532d119cb7f98311e401eeb2ea7466db19fe89. 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/DKBKA0400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa59df2bce00a411e781e4fa042af87766400638099ebbc2f37abb28195724b5. 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/DKBKA0400511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab9ed0e30c0cfa181a93fa82e9ff37f8db1e4cac01b8fb27c80fcaa444a44f7. 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/DKBKA0300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1157294cde0b2e458f8858db3a22d6a004e3246cf304caa57ac28d245019cef7. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/DKBKA0300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b79bc273e104ce42d5d8ddb41e7ac2cedb96006da6b0cb58d278b16973e76c. 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/DKBKA0300613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ab765f52c07df395334ebc7166a761fba60b4c04a6e0fe464fc3af9e360ca5. 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/DKBKA0400595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a847ba5bbae429714c805989338d72aa87cff74178f237be4995b8a342d04f. 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/DKBKA0400512.
Rise (Leave Me Alone) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2dfebecfe719bcc35c7930e064fc288580a896c16b802eb68f0f699f06c161. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKBKA0400115.
Rise (Leave Me Alone) - Airbase Damage Remake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b2604af67893f45678edcb28c18e1226b2e64a1ab01567efe71fc51ad0c0dc. 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/DKBKA0400514.
All The People In The World - Copenhagen Clubbers Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf17a7368c4b180992bf9166eb6be9b49fa4d3f37119b336e8ac4226e7ff6b7e. 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/DKBKA0301027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab9ed0e30c0cfa181a93fa82e9ff37f8db1e4cac01b8fb27c80fcaa444a44f7. 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/DKBKA0300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1157294cde0b2e458f8858db3a22d6a004e3246cf304caa57ac28d245019cef7. 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/DKBKA0300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b79bc273e104ce42d5d8ddb41e7ac2cedb96006da6b0cb58d278b16973e76c. 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/DKBKA0300613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab9ed0e30c0cfa181a93fa82e9ff37f8db1e4cac01b8fb27c80fcaa444a44f7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DKBKA0300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cec9b0f74343c2fbdbfa8c6c70b888063bc2692ebc66695a8170f62c7fc53a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DKBKA0400513.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
All The People In The World - F & W Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1494a11e554b7d6a2e73d1f04d5c43602dd073353906b7a3dbea382e06ba2c6. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/DKBKA0300972.
All The People In The World - DJ Isaac Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cbfad5b065a460aa5eb26005fac2419aa2daf39a63e0e94933b0075e1ad10f. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DKBKA0300973.