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 0xdfd5b408aeaa4fe7cbe277139e0a8369c10ca717cdb49db07af577444a707b1a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab473942-bce4-4213-ae5c-f063b898465f.json and https://artists.proofprofile.net/proofs/artist/ab473942-bce4-4213-ae5c-f063b898465f.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 0x1ededae9f6002ab27514ec046a52fabd64a5b5ee799e54425d2ee445be46c488. 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/BXIV82257236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d58c17448a3bba16efa945e960ed5d56819d1d643b4f4377f7610f8aabed8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:05:48Z), 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/BXIV82261925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2236db4d9cd41f3bb2ef0b228dcc2f3555c711dd9c2f9687332ef8759aefd9. 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/USANG2295279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228217e805c91003937c8795c01df6e8623d03beb491249c250f568c6be7355f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/BXIV82203626.
Montagem - Fica na Onda Com a Tropa dos Cria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa352133f3d73f1c007dbfb3c6ebce5e83dd743de33740883f68bf1594e27d956. 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/BC3PG2401261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e83c4c88a7d742fbf98316f6515cbab337d5d822c13ea2f1444a064d8538d7. 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/BC3PG2404133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af1b7e5c782aa6d49d4525e40b8728e70465300a38b25a8709e1cd11f1c4870. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BC3PG2500881.
Bruxaria Of The King The Power The Master
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdcb4a0f462b25066187d2e29dbbc4d0ce9adf3612c103d6bac293a9b88d893. 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/BC3PG2501584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd6ab3390928ca8f1ab91b0789e27ea55726b9a202a8273b65761598554534b. 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/BC3PG2503070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71670e665b9798f854417e58d8affb74dc6f03f93b4a100f56611bfdd57db372. 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/BC3PG2400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a050f16e36ff7b2ef9093d356e3a4377969116c60b6a6eccf85ff791260547. 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/BK2242400739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eaed635b249e2c0973641381a9416f51e329389c4c25b4b38d4ec5771d5e54. 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/BC3PG2330797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ea99306f133ce0159ee14f57381029ca5fc36731bf0a9af624e131a00c0bfc. 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/BK2242401327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0726bb40ed1553f8ba0fbf89960c0ca3a2ac49277268f0562d4fa52a1fd65a30. 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/QZNJV2409824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54218087a851760925ae827d160518ef15b357fc8f7f292b0a77e2da8a0b3701. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BK2242401323.
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 0x21eba77aa957556eb23e4bba90a2ca65cf4d230e5fbcdd690974bd2f24fd9a6d. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/BC3PG2400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3282238aa615f08b29fa9cd72a63d9b3f28d8e193a14bd20af412151f022c4db. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BC3PG2400092.