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 0x22236404fefda1cec729b70b420ba78271ca59e634efe2fb121907be148be51a. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3ddac16-64c3-4e3b-8463-71798ec24edb.json and https://artists.proofprofile.net/proofs/artist/f3ddac16-64c3-4e3b-8463-71798ec24edb.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 0x5ad6f42cab6a8790651197d9f1b964c59425c696e881780f5974546abf4ca378. 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/QZTB92557733.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8127c692be6cc21fff29ffaf28147e837ce06a8b737ba5ac76acf91132df97. 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/QZWFH2517874.
Fim de Semana na Quebrada vs Reggae Funk 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e7e83a129b01c35cb5aa32444a24187d3a778c232c6e5dd7025f7df0e9d9e8. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:43:03Z), 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/QZWFL2544632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d7a5c854254be632e18449b665773cf9462256b636ec6792601e8f74454a63. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZWFM2592759.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b4e7f804226bcddec0c31fd4702dc3435c779ac727e16a7ce4647f7f6d8636. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZWFR2543092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0d59a081664dd1cb4ae3afcc9a182868feab47f54780c89fd8b69da91e5e42. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZWFS2580981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf743d6ec11b1688eb1245eb04999f6efad9665d8829b76118c5ae39a2499fff0. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZWFT2539343.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2831bd3608d87ab55466365809cc579ad0ddb0146a621fdf834ad8dc7a32c62. 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/QZZ7N2599913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4531cc1f3431f6fc4d37059775353398aed41e43813e478aeef901a1565e5480. 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/QZZ7S2524813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7565934e30648fb2e5f7768cdc87848b1b3e248a48d446194b27c1b53fa0a6c9. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZZ7V2576221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98cddc44c40bbd5bc6b264f8384555dda33af26fd5955cbda1ced19edbc96a2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:51:13Z), 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/QZZ7V2576340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ab40b704616cf0cfd76f8288431e071059a6f7c13ef72289faab901d2ec80a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T01:00:49Z), 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/QT3EY2557315.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad2b4458c4e6c71b8ddf4049245a0219a89c2a68527b090aaa726284f5f4fe2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QT3F32501471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e59b0083ba1773184004b54efade71fa08bfc35bdca6d53f3bfd189323eb0f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QT3F62568949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733f1cdcabe994d4b02948a2bcae50760fb730659c63dcf228d7c2f29c5e2fa0. 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/QT3F62585656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f33e93414618effc8e30e1bfc3c5a9a4738b3dd4871664fed5a711ff9df6d5. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QT3F82557141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e9db45c5fb428ab2b3604a441f64cd05cb3dbb9ab60c0d433a098551733998. 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/QT3FB2530796.
Dobradinha Melo de Pistola vs Reggae Funk 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dde330148efc61e8af0b0421358cf4b594870da293150090566f68a7c041dc. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:48Z), 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/QT3FA2589165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc28965c291fa457f6c2fafe5f787d608f77de0d0ed0d2aa215b8e3158abb57f. 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/QT3FG2572561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bcfb39f239881792b649085594053df50f146a993363e7672a72b2badd6e01. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QT3FH2572116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202b1c19cf26686b9ae8600b2720876012774b8b9b2926bb3e3cc8993daaf537. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:02:07Z), 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/QT6EC2539483.
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