thumb | rightEsteban () is a Spanish male given name, derived from Greek Στέφανος (Stéphanos) and related to the English names Steven and Stephen. Although in its original pronunciation the accent is
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 0x527abba775836a167787a91ab16b4ee79b6e0e489b31823546b1722ef06f86d6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59530c0d-e704-4aca-b50b-ef55c25d04d8.json and https://artists.proofprofile.net/proofs/artist/59530c0d-e704-4aca-b50b-ef55c25d04d8.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 0xe4072e435e960da6022cd73c3218f66268b51eb3db31d4ae73c5ab1a1f6f9e13. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:11Z), 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/QZMZ92123250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6103d44419d7bf8a154bc16b2763753d9bb04ca8ddd9047893a38a8790187701. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCADU1869015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842b49068a2726130d5196dfbb9cbe68dd65ac4dcb110772a0f8e08eb33300b2. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZW9M2364639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52923d517ac77e9cd202e943dbeac6583f0389111a3b2fd4e6311e8420768dd. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZW9M2364640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f1d0d3306ca004e0385cc23f1cc16a6e9e7b40b029e4bfafab919f393ad608. 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/QZGLM2457284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baa3c5003a71c1e91d487a7553a95c4dc419e5e7a9af7ef67f76778d24b3a2f. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZGLM2457285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc49fadcf8ce0de86d7e95b5324b96059380a7a96032b8a4546e84059095b05. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZGLM2457288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3e523ace7787e2faaa528fa3292829bb17a8f8042ae9bad3cb33ecd5d55af5. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QZTPX2471379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12e57601e29216e8e033161c7efd00a86c69f27525624a75233f46534a65896. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZTPX2471380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9506d76c0adec8b1083b5a6c5b3c7bfad0fdcab94e8aacd35b6e93ccb2d350d8. 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/QZTPX2471381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2343e78a8d4949ea53b02894ea09848d6bff9ecef247e850293a662daf17ea4. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZTPX2471382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e88660c1431d514ae21c51ec1ec00eef1cb9bb7d54207d7b0619febb133071e. 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/QZTPX2471383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65d0eeb2e37f120ab3aaefd7414c368068d75e75b6896fff1af31a2ec4a9608. 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/ART2V2000004.