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 0xf58679a2fb4a56252859deed7d0cc22b6844c0980df182faf4a73cc9adc34f75. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40e36371-05fe-43e1-9436-c7c32a0f976b.json and https://artists.proofprofile.net/proofs/artist/40e36371-05fe-43e1-9436-c7c32a0f976b.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 0xb91da86091725cfdf611430cbfdfd097fbcba01a2dbc3de3775f92a8ea545f75. 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/BRYCR2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69ed4bed6fac4248e5c26d58b16336b63183492e1585358cafde2e25bea4ba8. 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/BRYCR2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1943763a9d19cb3fecbee751cdf77d14702ebb4d040d8f4f3ec382551a112f8. 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/BRYCR2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168b662b2bce4dea5a52617d83bcb0090253bca3090876a042187ae7bcb9b15c. 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/BRYCR2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c0ce97e655ab26a5abd3a33aa27fe213ca985f7ba76ec507ceeb20720beb29. 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/BRYCR2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9037a8b60d64c29944611ede5efe313baae7150084f57e4d65e97c5469a230. 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/BRYCR2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf89cb1a3b7faf232f84e918f143aa0b7a8ab60142dac8dd9df7ea7a17ba12d. 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/BRYCR2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5566c92a6a76734746dc77cb088314caef7c49e8e505ca5ffea0ceee0afedbd3. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/BRYCR2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890a4281bc63bddc47f0632b38853083ac5436975e1bfeb2c15e9126718e1c00. 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/QZ5AB1902087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ede81e3b766a08b05e97e28fc166b2423bcb27cbe31c2f187d1e4ac1c8cf89. 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/QZ5AB1902088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2962e96c44507be56a93b1fddf0476d9a1e1c112ff0f95f0512bcbe0fbdad2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZ5AB1902089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ed98c66b410d0d6ca079956b215dae5c9a13f1c3562b173d90e247051e0837. 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/QZ5AB1902094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c6e6f1292f20839dd1be73b4bd3a3bdb9c93c0b2852c8e4c06a49ce89bbe29. 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/QZ5AB1902095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f3d405cbeeb9e1fe6a5e8e7c79e346cca8af6993817d77b490dbed4c1d4630. 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/QZ5AB1937146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1a6ed0a1391fe8df91059d2e7ce9d551042fa89f4152718b37365645251aef. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZ5AB1937147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdb07b476faa5a0e3f3c2b49b10d42d1e722cdcba20e12ddf6742d87d2a6e1d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZ5AB1937148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41324eeff52f7b68fdebcf42454c4726f282a79a8e6c62abb4429e9e37440fcf. 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/QZ5AB1937150.
Bendito em Seus Olhos, Maldito em Sua Boca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e40913dbdb7fea1e861c773f6b94723037bfbd048e53fd0bbd6cdbba636142. 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/QZ5AB1937153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e04a78ecce46fba2230ec16872c13696e6e91b08362e014be1ab4a2b2fb71a. 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/QZGLS2090013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce96db9bdc86a0d9ffb479a1d77e9b30ff595023946c692527ddaddb3cd5c8d. 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/QZGLS2090014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c60c008bc4bc308f62f1159f47cfd6fe875d7965485120d2ae1ea2e81b387ed. 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/QZHZ42045826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0f00a118d8ba4334f7ae323aa77f5da334b19a6b64a73d4f269227d8e6018e. 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/QZHZ42045828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369c29015cd3ee5116bacafa507aae6d5c5a0e6816864ccd00d9d4f1fbf2bdb0. 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/QZHZ42045830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32314f4181cfe977373a8a2667fe583753f8f79c880953fb7a68b3cad4e498d. 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/QZHZ42045831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ece2b996a5176ba968e5881f88a23b573abb4d2fdd4f67f0ff79a80edab05c6. 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/QZHZ42045832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9037a8b60d64c29944611ede5efe313baae7150084f57e4d65e97c5469a230. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRYCR2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf89cb1a3b7faf232f84e918f143aa0b7a8ab60142dac8dd9df7ea7a17ba12d. 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/BRYCR2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91da86091725cfdf611430cbfdfd097fbcba01a2dbc3de3775f92a8ea545f75. 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/BRYCR2100005.