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 0x833a43199ad440875f4ca77b032ad60f3351db9b63c5ded691bde957c89ebc68. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecef4dab-160d-4006-89be-cd9f08103dda.json and https://artists.proofprofile.net/proofs/artist/ecef4dab-160d-4006-89be-cd9f08103dda.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 0x151b4b1e14c511c53128f123915b8c9d06026727e12651d4af031d365e8b174b. 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/BKFIN2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33da377a6cf56484b7ebf2517c42fedd077e8ea3b52de9d8a5dfb6fceb060502. 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/QZS642237017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73dd9339b656a95f49f6c3996dca5eaaa68ec9aae855938d0fbad24a4130d269. 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/QZS662263864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d52d16c7929fbe7a97da372b2ca3b84ed38b8a87cc46bc0b5e56a53532483f. 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/QZS662207474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825595cabe1c3f44f9a96e6875d03f405638e582df7f66e19afb4951d1a92e0d. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:40:31Z), 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/QZMHM2276445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffa92b06323720ff59e5f87509829561684ca4af9d0f65110934dffc76fd352. 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/QZS672277983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4200ae9c8ea04ec3f953a022357823d88ac502391642cfac3f10b22dfc2ba0. 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/QZS672293857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dec4d250101e67a9a6ebbb9193d5703fde4c27952dd44816ac6597c2a2f6731. 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/QZS652283674.
Adoro DJs - Alírio, Guza, Mari Herzer Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ec65aec8b4a4bdaf7e294cb9dc3a99e12cc8e61cbd157d973480904a3f728e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZKDK2228501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb466c8870d63784221f7abd693e5c07999178a460b7730dd440503b7374c02b5. 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/BC3HV2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe642c638646a9309feeca709473c88af502f83f7920a2786dbbda41f24835dac. 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/BC3HV2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42159a1f5fe8446c9ffbf74fe88d7184c742a175b175717c5fc783aaee8fa4a1. 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/BCOCK2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057a7305359182225b54760d2a3ff0da524ed07cd665c070ed52cde8f30ba7a7. 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/BCOCK2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f81427a5e033bde1b6b61f23a4b4133215a311c5d496dda14ad80980cecb2e6. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRTRB2071293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bc210a6c180ccc36d639c9d46bd3f604dda9ebe1aa4f2f0c6ebf3780cd34c1. 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/BRTRB2071294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc821ed8432c381bbc7ccbae825416832e3033abcee28fe920100b8000c32c37a. 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/BRTRB2071297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de784c78f77f27012276e66b29a65e0c615c11b3c7e137502eab4864d79d8a0. 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/BCDJT2400010.
Ontem Eu Tinha Certeza (Hoje Eu Tenho Mais)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca13f58f3c53ca014fd8288f0a2697b613a34988335c8d7c3349b6859754b266. 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/BCDJT2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89c1ae60c159e8234110ed1a79e5bfb2b76bfb169b1aaacf0521854c02ff32b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCDJT2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d687ae0b3a6ffa8ea9cd434aae5bf48876e5ffda22ef1cbf17295ab3b2d00e5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCDJT2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dfcb648589de0767b484358a21b18a1e00a34517f1dce537877d61927d95a9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCDJT2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241f2e08e7d71c64d2a9fc322236836f76dc46eb678066f5403df95989e9ca0f. 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/BCDJT2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a4c3c26b8e887644c5dc253b09db57308148a372a5064eebcdf8f2cacf43d3. 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/BCDJT2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3413c36ecbf961af923bca2fb590e7e2afd5c2e1cd5aff9d3cce09a11bd769. 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/BCDJT2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59596cf45b0f25b6696289d4a231d345164760ec009e9a7bd46d2753435b6eb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCDJT2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de784c78f77f27012276e66b29a65e0c615c11b3c7e137502eab4864d79d8a0. 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/BCDJT2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953b78d8bc12d11d9f8cfb9378c9cd1c754d9182c583ec461a133f27a4d3abbc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCDJT2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5019dd3c134e3d732469966f9751807d703631652bae715a81a813082434b48f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCDJT2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116751ba57dd1ad317fca4d79391016a83dd9e0468ea21efb968f366acc4b353. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCDJT2400001.