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 0xc1d75c16f29fdea1d683c18181bce4dc20fff74bded08908b5173f4d213eb678. 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/c6e2deb3-b9c8-4c75-a259-c8cae228aff7.json and https://artists.proofprofile.net/proofs/artist/c6e2deb3-b9c8-4c75-a259-c8cae228aff7.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 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 0x00ebe287924d200427202bea2846f36f01d29f079d262bff94fb83ba3ce103f2. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZGLS2096900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f50b6331b22d2ebda81a234414a88c3d694d0172a9b55e33ee1322ef21cd81. 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/QZGLS2096904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0532dd89b133f20c714c56be31ae14d03f51a67029505416b95c2a307f01afd7. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZGLS2096907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02451441160c4128e75fc312724945ca23ba4199b194c010d2f00ae08c451eeb. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZGLS2096908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b74003c6f502fc9e82f0a4b47d53bc8bb1cee9f574dabf48a9c422e62576de. 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/QZGLS2096887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4394e2efb09b13ced914d67a00051ae31ed0d976e726f3112e3cc52ab34a89. 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/QZGLS2096890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe140e8cc3af57e9fe09d82452d1e889b76cd6907c5790f22bfb75bccff84ef53. 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/QZGLS2096891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a68213a0aced129cf3ec32da7bffbaf7da4a55527d096962e259b237eb6f59. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZGLS2096928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1906ada77b4228ce92eb2a877e60d9e89296140c89a1533bf36a43a8ec185637. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZGLS2096930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134b55f399ea085f8be3d297529080c21a467000b5e0a213f09a8b9034bb25ef. 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/QZGLS2096934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ffb749f6549b09879438a3395b0d696f13edffb25c6f3a07229725b0cac211. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZGLS2096914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf322bd05bccf52c3361c4024de5fd9df4cc76778363de06ef6a05683cce0a1. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZGLS2096917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2adf2f220d3f43c7f4801e1e270bba63505a395b0d5e369036b7bfd241bd07d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLS2096918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f91398f4ba846b6178dc2e59ff8c8041ec65d79ff7ca25cb27790d5e474596. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZGLS2096951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd4d02821b582ead3dc09eed7ba0f856f3f26e95b058f2526ac0da110d817f4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLS2096957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e30ac97823483b23669f3b5eccdb4c37c7fa40c687d9a258df53291a8520d6. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZGLS2096958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10bc10df187881ffaf91d7a96e1aacea119afc56e70279a38d2d6942113831a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZGLS2096936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03331f112f6c0af500b90cf6ac62685d77d6c753a28becc7536d7945211c48a6. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZGLS2096937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ece9d210c7f3642da00d111555d926db1d61a55df8d27dfc8c036afeb0ab22e. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/QZGLS2096939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337d87b225c4ea499cd5db3e1b3513e5167dcb704aa2751e66667527747bee71. 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/QZGLS2096943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495550ab60a6638a036c5f224b0c573573247fcd53ffe671538d9cab3d158ed0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZGLS2096947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca78f56cc3e2ebf174b19c4af4ff005264f8765deaacf789156bbe660ea4ad2. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZGLS2096948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841b0e05ee852cd81841f9498ae7dce65c2a80165ff824eb6aaa329d6d2c4b72. 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/QZGLS2096949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71479bcdf1bb0a768c45e8a0e67adda330a8aab6f9d137b9d8346aaa0b4be2ab. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZGLS2103859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496dafce5a3370cb777d3af8e2514c19d3648b01d4217d1346705ab8e6e4b556. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/QZMZ92176286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc6a6c2c7c73389570a09683e867fe2a6a2d731861382545dd08a1cbd819b5f. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZW9N2215025.
Mix Corazón de Piedra (Sé Apagó el Amor/Espinas y Dolor/Corazon Piedra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff3a7ab13344a4cbdbef4e7cff203090b253dceccdf59700bff5c359c751612. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZMZ92596196.