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 0x10b86c32ccb46120f9cd366b0d612a5f743a4b69c2a846068973f4e4cd0abe17. 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/f66e6163-b855-4e81-966a-bd7024ff65b8.json and https://artists.proofprofile.net/proofs/artist/f66e6163-b855-4e81-966a-bd7024ff65b8.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 0xa2335cb18da17d95ab931bd6e35aa549760dbf7860540b5aadd53def2b869f04. 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/QZTAT2172071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82260c68a0ba41f4d191dde463eeae53ab180c9d71fb5b18a8592d8ec475f3a. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZTAT2172072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07a49e6556c6958aa0e1a42d2f1266cdddcee531d11ab2601416549051e9c42. 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/QZTAT2172074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04869832f1b9fd050c542a6fab132f9edb90464af7258cdf73863a7d33e51f77. 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/QZTAT2172075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9f309cea4b26876e5de2ac8d09252d6fb9b0c9b1cb041f2b64034f4e17d2d4. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZTAT2172078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354015f7df994f69b880d351edea54e0a794e45d31b7d188f28bd06d058e12e9. 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/QZTAT2172079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4d3f2e5c346e17717a0c09ce97dce6fcd18e5716aa8c4a14ce11fc71812ec7. 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/QZTAU2157774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c26db8e65e3f3bab3802fbb7c4b87f962e3b1bd9492d12d2596e08fcabec5c0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTAU2158521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa168c9d53661307b2c29ae28c4ade4492abe13a882c4080e3c9b7e1356370adc. 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/QZTAU2158525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e0e2196b1e31a497879898ee7f800c14b1e84925788a9f70844cf355a1d378. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTAU2158526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2727e84809d6e0c7cbd9a19a7d9d0fd34eb896ce0c84877a239cf2340b934d63. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZTAU2158529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a067ba5594f7da2170bcf207864d8089106c122d5bc1f4f347e8386aa21c59e. 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/QZTAT2161101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2a17a2715c5f8f5d3b2a66ae53204e83e282017a5392131f6963a6e6ebc100. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZFYY2233541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e12384c5d177f5ba3b31a444b4b84183bb1c07ccf42c650034a61f72dea7f9. 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/QZFYY2233545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd146098026cf471d773bbd272391737f1eb92fd3e7f511b104b4379b2db4372b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZFYY2233549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e318324bcddc268915051c071289d6bffd3823add3ff0cf72b7346a33205037. 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/QZFYY2233551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb69f67f53c56bddf60eee704aaa26a74abb7a8c47a9a21b6a376802c4c6e6a0. 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/QZFYY2233552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c8d881e6d6d6e26f2aef9613587e27409925495129891db10ec8b05f0bb119. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZFYY2233648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4faad95fe293018f80334c82a42c26e3d468b46da5f5feaefb0ebe38dee4f8b. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QZFYY2233481.
Dulce amor de Cristo (Coro Principe de Paz)
Amemonos de corazón - coro Nueva Jerusalem
Estar siempre con El - coro Principe de Paz
Aunque mis ojos no puedan ver - Coro Divino Redentor
Su Amor Me Transformó - Proyecto Asaph | D'VozSión
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d39d5621f8372ce53430763bb51ba53c639b3862c49d3cd0f5e8cf1d865ff90. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZTBA2230162.
Te doy la Gloria | Coro Unido Divino Redentor
Jesucristo es el Señor I coro Divino Reddentor
Sacrificio de amor (Catores del Rey 2018)