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 0x8d6038ef7775e7aff9d130853c8a5b5eeaf3f476a719d214d47dc6f88f94c2d6. 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/5e16a800-737b-4b30-bd4f-e5c998c65ea5.json and https://artists.proofprofile.net/proofs/artist/5e16a800-737b-4b30-bd4f-e5c998c65ea5.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 0x39101c5bdeabe2218ab8e557a4b93af0580a3582ffd43d276300afeadaeb615c. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZK6K2245730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11b61d379c66e75d5a47fd70ac9c027d45c7d78e908bdc99cf0cde0198eb77b. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZK6K2245731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583db3b3fce0063f361cc7ea2d1c87a0d674c1530c459fa7ab9105b67ded67aa. 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/QZK6K2245711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c184cb0e160000c46bc0261a9e7c232b5765afc29e199f166135c5f67143fe0. 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/QZK6K2244597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b86076bea03279b761972181db5a41ee90d7d3c1d9a93b0a9fedf1d91b3cb7. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZK6K2244599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7663f8402b39168918b478ea3b9623d5b2b8f7cc6265d11b89512316b8bf75b9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZK6K2244601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a8a1a99070f8282bfa30a63ea7dd4963ac01415a5429b5d980296da4f9743b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZK6K2244602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f45d3fbe6b5e544e9951a0ac793e9471ed00b5da250fda7c9c9060591a5ff0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZK6K2209209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7986951c89dfb66ba83accb45195f08cb226f542407f0058f55bec3167e295cc. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZK6K2209217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc7634f1d974d775a32096a0cef9136a57a7ddf63177f25039e25a8fc4d5614. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZK6K2209218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e1ddd6b18526397441d51f22c6125cfd26a3993bff8acb5ca3944ab7bdea28. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:10:38Z), 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/QZK6K2210283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd80f980b080aa832f0bc3ad93c492696359839f75e5be5088236e1d44520b3c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:08:18Z), 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/QZK6K2210284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648e0e316abb645a57a433b3ad92b099beaeb527b4514da26beb353245d065da. 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/QZK6K2210285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9856a1bd84fd7e61f5a8d6fedba495f5c940e9fd7f5f7666fa1d19706c0f78. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZK6K2249085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25819bb93a9c91c5c77ded099d5586700e8b1df11f2edfd33d2822bc2221c062. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNWZ2240148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c70f511022f26483a3e3113af72bb3cccc17ef03e4e7e80b4de000e20ff08c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNWY2272071.
Saca La Negra/ Al Conjunto Sabor - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5efe8eea29d500946961d7340a5602db12b6952552a8e63e2f8821826a4a701. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWY2272072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce49680078512e407f18048fb2d403a8335123faad5fc0ae554da73305184290. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWY2272073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b39fa72139ec0c5227a9770bf6de0c8c93aee2a53f6bbe47cb898ed9e2eca96. 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/QZNWY2272074.
Mi Linda Chabela/ Besame Morenita - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5726bf40d281643a890c0423f8d749ba6676f63a670503ba4e4be47e41daa2aa. 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/QZNWY2272077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f5da9883c8c0a4ba01aab43cf1220dc137c7f3be20d4821741a8d93719488f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES52375035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5effc91988d4f498cca7badb450dfb75a145e6c1f1dd4a68bd7be12312aa0062. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZES92517390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8957c4cec06ecf1f0aa61c00b2821a31030f21c7d2cea913a9f5563cfbd43a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES92517392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb39bff16e08e56550926799a6043b98d3fe23f48f2247946a0a14a4c14cbb51. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES92517393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25348897e2a243936abbf554cf8e9f1bc055e22a363714819df6a6cec968a04. 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/QZES92517394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3de5f617759b62d74bad6a33e03d2782fd6abb1e634fcdc6960ecaa3659e507. 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/QT3F32528539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf435693edddcf536794a0859327f51368cc508a9f2ec1d8e3ac02de36d619b5b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:16:22Z), 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/QT3F32528540.