Protocol may refer to: Sociology and politics Protocol (politics), a formal agreement between nation states Protocol (diplomacy), the etiquette of diplomacy and affairs of state Etiquette, a code
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 0x15d71538de06978842c45b372713224c2af379d8f6d1a06a3ab8616d950857b1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/657cc7bc-1a5f-461c-af0e-47cbaf130ec5.json and https://artists.proofprofile.net/proofs/artist/657cc7bc-1a5f-461c-af0e-47cbaf130ec5.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 0x8d5d66acdc34de0dc3c38fb8dba168fc4cf5f4d8061d9f276d642bcff9377197. 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/QZHCR2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be22ac6f4daf0db100cfd846dc5692178116d1498ce33097efc80344394f95f. 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/QZHCR2300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7605dc1237fe21fc43ac6752805a95e7c1c4828b1f9654a92105120506c56a. 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/QZHCR2300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ad543909040eb74c5005a5e0a8f8748d26ccd3b66b582d4e606028581e980e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHCR2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5a1ee3aa9334a34d2b86a505f3b63ddf08ca53bae6e98cb175c75173ada54f. 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/QZHCR2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0616f7b377d1f9c6a448b51d8bddbf3ea255689e0d05fdb0921e6ce393e782a9. 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/QZHCR2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a80b92155795601be4d0e14129663c9fe38ea306d8edfefd2e237bfd90da28. 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/QZHCR2300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106bdb7f177996e9f38bf57ab3b611ec416b09cce308149ed894232c54d8d0a0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHCR2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24487208f52be59c42a89faf206f19709c7df019fe3cf21f14b0329eacee2ca. 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/QZHCR2300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ceaa3795981d58267a0e1d542208e83703c4f7472d8b4b708877ab56560179. 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/QZHCR2300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6da8a14b373de161a602edaed39d81365e988b5735fd2b92615ae931eea7ba8. 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/QZHCR2300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c31942d1867e764dc4c856577161f3ea674f15abc1a5da729052043ef7f864. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHCR2300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c21b84260965a22e98a0dbeb0b750b6a51848cd4300445cbdde08f50e9e138f. 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/QZHCR2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f3c295e93c92cbb97817c0aafadf495acfe23a73b764cda9d32b0abf9f4d10. 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/QZHCR2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae411dff5f3eb94edc04cd8998f0dd849cf070acb5915ee2abc82445d979e11. 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/QZHCR2200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1476af0a7696ec4a1b680de6f094a4c7b7f20b0544a33108f3895ee9640bd3fe. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHCR2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb57a1531b8e9a4df2373b6e0226ffcdef84a986738299aa47cb90e651863c9. 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/QZHCR2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cce07eea598e94b9df80d7034cf5b0db584f4299502e6e679bfcd6ae5d9a3e. 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/QZHCR2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7dfbf43ca1d156c9d62d0b2ae7f7f378369ea86c3c59454f8091f35bf5c5a7e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHCR2300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4675ba627a7b8e1b47e5d9bb114030d30ce536e9cc3b801acc27af0a845d6558. 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/QZQAY2344809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf827aa0d1b76ce0e9671a8854a6fcd52add54dc8bc281e1675db92af81b2a8. 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/QZQAY2326511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e16efa56f259e69d449f8f47285c8d9b706334e0bf6b8af7a18e5061b9f301. 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/QZQAY2349313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1476af0a7696ec4a1b680de6f094a4c7b7f20b0544a33108f3895ee9640bd3fe. 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/QZHCR2300039.