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 0x35526cbad24e4c06b0d84be1bd94b12dc9b67a6f965b81a1c22aeba83bbbe68a. 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/51e265e2-3121-44ec-8a19-022188dd49c8.json and https://artists.proofprofile.net/proofs/artist/51e265e2-3121-44ec-8a19-022188dd49c8.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 0x852645b3ff346dfc67643e04767fcc1d3cde8973d3d5b7c1a3c3b042c10d5484. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:42:47Z), 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/BRWMB9703135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b2992aa6d25824ac8e4aebcf659152b0c8c26c39ad1fe4e7d4e29b77f50b3f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLRD52217102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b72a7d47bdad1d17f1269e316dd05fb49edcf7dbd8c55eb9a572ad66550ff4e. 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/NLRD52217105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11aff7675e48045e39a31cc277b46fec0e2d6f7a0eae2479888694737c48329c. 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/NLRD52217108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b12732cf2c819641bc3edbb5ab3c013c2fa4d8a71ee61470b704b6342c1d171. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/NLRD52217109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992da70b8ae13952b1a1e55320cbc49abbc636d2ff03b4b547a32a23b9a60ebe. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLRD52217111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3be89f6fa0ec593189572f33a55f3cfb457627264e923979c07a976403fde9. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/BRRBM2000813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389cfea30dd4141539f2a409683b2488acbfc005e792959618a06611dea0ef6d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BRRBM2000814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553e8a1636c007292b67ea2b17e57842a6dc2feca4f08ac4003414d7086b287f. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BRRBM2000816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9630218cfd0f81bc1ae88ad352991d71a7d83df94447346a9fa41ca1ca513567. 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/BRRBM2000818.
Encontros Sertanejos - Zé fortuna & Pitangueira Vol. 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48f702578c5e407450e4a93a874a8d8ca8c511439ff7433039761df43147dcf. 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/BRWMB0300557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42142473dfcb85687148c10b724c4529fa0bb0366865dcc6a5200b7f8b79f482. 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/BRMVP0200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a50387ae5db085070edd9ead80a5c0110249f5ef2b6f1357c1808cc9fdad0e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRWMB0300566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13859770a39ac0745f57a5b61f5dde0cc0709f713dcb92ccd9525430b2a2d494. 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/BRWMB9703148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cac2808dbd297293d6becf16bdd0b641bcadd8b3461bf9b3e9a5cdac4cf86a. 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/BRWMB9703143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cac2808dbd297293d6becf16bdd0b641bcadd8b3461bf9b3e9a5cdac4cf86a. 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/BRWMB9703143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fce4cf2a14389dde6903674b60243d71956c0480812e95b223631654db61f3. 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/BRWMB9703141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a0360f5cbe5ebc3f11818eb01a7736ecf0eae0a5bbff56306749760f5ab096. 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/BRWMB9703136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89118d846e66e16b917bf5116425e93657fb57e378b9dafef33aeadad997e40. 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/BREMI8100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce07ab6e67d155b144a93a1d44d9ce8598ca5e46dccc1e7d0f44fb6e2b820455. 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/BRWMB9703144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ea52e4e2bb37ca70e17c7f74c97c42fafe6e9724c5f23ee273ee7a2aea573a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRWMB0300561.