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 0x668939a64c3ca8099bb49932593e66a970558ecd4c82786a11113ff5e79d1d98. 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/99cfdd79-7560-47d8-90bc-54d1b5e6592b.json and https://artists.proofprofile.net/proofs/artist/99cfdd79-7560-47d8-90bc-54d1b5e6592b.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 0xb2e44cf5fb96cd70f068692fe5623f5b8eebcccdf64f135823abad0067531550. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRVXH2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02f69e981fb925de4da4e0d8341043d23df93a1dd132fde6be3f9ec2bd93046. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRVXH2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1689057a5297e7e615d7b143897c81806b26259dbd960d84d01d6dedfc4e64ca. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRVXH2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7819c7a7f3129da098cff388378fbee6b0613af81f496de14d69c2383f1871f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRVXH2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad67ff2f036b1e193db13083aeaa47e517598c0efa5d4c92775fbea0fb8f43c7. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/BRVXH2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8eed8a42351c235ded6f9bc56520d825f5853a9b011734c8c5512fbaa52d88. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRVXH2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa900252f4fd7f0da03c4ff99ef8e1822bc132f143fe8f6f2def7ad80ff45b9bb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRVXH2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b23dcc7cb429ce1b4af5fd0b72cd841c951170aa80fd5d66f3f1c9256f106f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRVXH2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1922307794997f60d411827ee17a53760c84a3d03961be7b89c03cd293ecfa56. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/BRVXH2400004.
Nem Dormindo Consigo Te Esquecer - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb68eb9529498e5545ef51ce14b1d548cb20107bf70200c191615b4bfd8c564. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRVXH2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fce768931210751bd8ad237c55ca9ab4238e3e5bede48344461a1a78bb9722c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRVXH2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf311c6ec3b17c4dce8532e8616b1c279946f68363e56188720fb83be21971ff8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRVXH2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4512e6f6911dca541620194be052186a297ea9b6af0713d440d52ff6bde83d6a. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/BRVXH2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e064277d3555648c98d2608331f744831c5811a40c38ad8c6a5308ebf8208eb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRVXH2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acd3d6785a90cdd34ecacfd4f3a422025d65498a6301f69691cb7085be1418e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRVXH2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3a04bb45251d4e470abb5017d8cc8117439d783e7020b50c61c7cd8c9d4987. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRVXH2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1575f8efc7b69a54c111434ba4a6061f1094467c74c0eef7f86433bd4b0e059b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRVXH2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c3a7a8e682c67e3cfa3b147b5a2846486a9c8da47bc4e2495e7e55c103074d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/BRVXH2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17e82099b708cad2d7c3b0adab43fb09d06290cfac723c96d043e5ea0bc95e3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BRVXH2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa14167103a54fbb2b0a156ccdd5de0e64fffbce54c0af7dc5846b83d7dbfe9f. 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/BRVXH2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c56c0f7b3852f08c4e2366afc1275418e4c5c00bcc68de38643d1edf4c28f52. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/BXNT62209450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd443eadc187aedd264e0ac759c81bb6f5ce3e0cdf831d5d758fa33e31518b6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXJBS2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9688565c0ca6d78d0b1a6b30618d472beba47d6690a0714c7ca091560c82d018. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/BRVXH2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9688565c0ca6d78d0b1a6b30618d472beba47d6690a0714c7ca091560c82d018. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRVXH2300011.