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 0x194b09192dda990d07352afb7672618c98fe0b42092f389cb8c1ce319fcd6cf8. 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/e15c7a2c-4c67-4358-8348-b1d7e3c31fa2.json and https://artists.proofprofile.net/proofs/artist/e15c7a2c-4c67-4358-8348-b1d7e3c31fa2.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 0x2408cd8dd105045237f4fce2495ce5c19237b29c916c27df16a86b3cbf24634a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHZ51909350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69da0d59a4e5dd848b9ffb61491633e6b8c39ce420dad630c2c6a2906ddf2b8f. 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/BXYAE1800031.
LEVANTAR (feat. P. Oliveira & Caíque Ribeiro) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f309be569b29952651fb8f568b4040150ec915b0f6460c9e0dca6099ee386b8. 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/BCSPH2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d7d35c1a1f26c4395a99da0f6230474fd14312d6209a01f34f1eeb0bfc61e3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCSPH2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d7d35c1a1f26c4395a99da0f6230474fd14312d6209a01f34f1eeb0bfc61e3. 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/BCSPH2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088cacc1608dd08d1a3f975e9139fd7b63e3b69649c8ba8fff29ca568da3d13f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCSPH2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ea5a56bae6a03b25180ca21d2b84800fbfc0e93f14873d4f8063309ddef0dc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCSPH2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f309be569b29952651fb8f568b4040150ec915b0f6460c9e0dca6099ee386b8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCSPH2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf579a7ec13857703a1d612498c16f34ca2a07658b060697ce9c4be482669583d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BCSPH2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77817682c13fdde42273a875c4cd23074cb984727ddfb54905131b3742b64913. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCSPH2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d6766243ad71642471c6e270167c464e7358abd40a5e0f0434b5b8cf55b0eb. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:11:38Z), 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/BCSPH2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc70bbf7bf99c7a0fda625080c9ed052d443c70393dee3e40d949c9f43c1a26e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTPX2260542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff4d0118959fcd5d526053e633d385458896b7e9c2dae940393a66c17d454b8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRRGE2300422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1605af0fcc5e0f42efe79c5412613b744aecd76510d9dff93f51669b8e469ba. 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/BCLV42000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edeaef826d4303491084edfae73bfa53bed30248e872b8fbca1ab6aac1c5f7b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZMZ92056999.