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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcd5260a188264c6bf7fc03ea95cbdf34e3932c8f1488a7f6cb0e1f4037e6ad. 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/ed9f31c3-ddc7-4f96-be18-9e98c8074564.json and https://artists.proofprofile.net/proofs/artist/ed9f31c3-ddc7-4f96-be18-9e98c8074564.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Serie XXIX El Reloj Profético de Dios Pistas Coros Niños
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc182ad0d8e36f02a70b21e6a19c81f523b3c9982b485d97bba7600548e58893e. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZNWW2527079.
Serie XXIX El Reloj Profético de Dios Coros niños
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f95c2974e55534b9a0f9b538432f75ef28773eb4a3792d17663726e1c1f256a. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNWW2526956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7f5213c8c7e78e3b670aefb1a70f7d3e659ccc713774b11fc33a701afc211f. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNWW2526957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760ede6b4602e39ab4a006e693f47073c17e2e80b98915e9b88bad4102c74c94. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZNWW2526959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad0f3a21dd323ac484eddbbe471594d421c195698385940b9807e47aa5c6926. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNWW2526960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac48719956e4542566218b49af7f5f41904f1c1841679d3b695ce420ead0c15. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZNWW2526961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784f0c7a9850802fbb8ec5d4233621f63da17a8e6d1c44643de4ca3044c41073. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZNWW2526963.
Serie XXIX El Reloj Profético de Dios Himnos Mayores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338eb070fe469c73e352ff481a8a3560f095b1df22af8c004a2607f009543ab3. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZNWW2527002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1160ef160ba13155053af11efbc33b662d53b182f8fbe2071116a30726c0b260. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZNWW2527004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784f0c7a9850802fbb8ec5d4233621f63da17a8e6d1c44643de4ca3044c41073. 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/QZNWW2526963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8ff3950abbbdcfdc023f76fcc6964972001e6d7046605c5dde5f9c6b7ac7bf. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNWW2527008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4600d933fc9c236ba974931b811d5e8dbbbcb9025c98712871412891f5a54cc0. 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/QZNWW2527009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6bd9d675da150b9fd25dc53cd8de7fe90e44834ab97f52991166f20b0b6600. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWW2527010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd437a71f816ab0816c6c1899331e3721f9f4af85bd3edbaa702007c07e81f5d. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZNWW2527011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4724655fe8bf6815311d550922f22b36ad395bfd145e3cc0cb61b67703fa00d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWW2527012.
Serie XXIX El Reloj Profético de Dios Pistas Himnos Mayores