Pantone LLC (stylized as PANTONE) is an American limited liability company headquartered in Carlstadt, New Jersey, and best known for its Pantone Matching System (PMS), a proprietary color naming syst
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 0xf29d29630471fa560c9fe582e024c9471fe6a32ac8bc1cfcc69ce98c33782ae7. 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/cc3b8145-fd4c-41d4-8b3a-63a8995e653e.json and https://artists.proofprofile.net/proofs/artist/cc3b8145-fd4c-41d4-8b3a-63a8995e653e.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 0xef05a58fdc99c11b58998f101c6a8f0bed04d8de3ca46703428e5c9f40984514. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/FR9W12027876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28424c3ebf6b9f9530dd5e143af1f0fe165756eaec549f93d482eefc7856d3b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR9W12027878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa924dd902913111b10fc7360b6fd2c731a54b17ad6b9efe4786686b1b6c74c25. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:31Z), 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/FR9W12027877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70aab88bbc7e94ba9e021636edeb8afbb1db5d6a3e13ddcc2d1becbdcc4055e0. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FR9W12027829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe785cb07c56172c92d28324aca08b3cc67e834b6b11bc6c1de6ae502993bad53. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/FR9W12101680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e78171f858b8c954b93650cd97775726877d9f75bf8b54d8d8abc9f340b91a0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR9W12101692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0f5df80af1f64f77b057a6072c617dbdfec13b559f539ea83b89781c2a16d8. 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/FR9W12106326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e30f5f9392f435043beeb7194caa0d4cb5eec62f36d9b390d64aa143d92fb58. 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/FR9W12108055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cff13778180650eabef0e28d7cc86d286cef02ebb47d7f9d5bccba898b78c5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR9W12108056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d1838e889d12369e5ee66fcf5f9ae88971933a88492c0cc98b26503c2a7d38. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR9W12108058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa604566d25db369515cb9b671b9c451fec424ba6800d64699c7794a0c7d9902a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FXQ892100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb647858acc1ecddbfb92bb1f4a82ab7aa704de7b7836e78bd47fafaf286ded0f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:56:22Z), 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/FXQ892100137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc180f75627d271ec879795a146228a1ff6c672148d6970f1760dc7582c3d619a. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:16:36Z), 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/FXQ892200177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b7492ffe32e092158d3dbc55596209e1d7704b536c54d94133e23885590d0d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FXQ892200232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c00d890da527891d27b05428437cf7e8ad7d81483a991b06285e0f68a7b426. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FXQ892200396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94768734f20c98b72dd8b3c8f05410396c5e9b9cc628ce9c97fafea792f31109. 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/FXQ892300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d6c57189a7ae427142eb271e3372f5aaac8375d6ac9a5d22914084690041d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:12Z), 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/ITUVE2500133.