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 0x699b6c8fbbdf76a925efa9adc235079512df9f5ffb16de17f7abf231956b888d. 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/283c86b0-6af7-46fd-a51f-9bf39b557f8a.json and https://artists.proofprofile.net/proofs/artist/283c86b0-6af7-46fd-a51f-9bf39b557f8a.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 0x94784d11727f0646fd58564233166d59327773dba5860616ad34f747c3ace45e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHZ31965656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e3a20f8d602f46afed3b2779a739a138e5070c74f534f02d9bd3dfe9c86859. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:05:38Z), 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/BR0RZ2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6d2e3c07a042c43776eb8c05c2888519da49804ad053ba5347ad81cf0e3f8f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:54:53Z), 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/BXVSF2100076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cd35582082d73fffece9547acb78c73006f1fcd623f027a9dbe918efbd8ce3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/BXVSF2100142.
Pagode Pé de Mesa: Sei Quem Te Deu o Presentinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f946939dbc5b59eaee0f7059d30952df771099946f928b51cbbb4720f80c272. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BXVSF2100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56009581eea1e63d083489c7f4966ff9e11dbdd36e245808be4c26668e719b04. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:25:48Z), 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/BR04F2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9bafc1c86e0b46b6db1128659156b8747c9088cd02850aed42af75d8ac6faa. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/US7VG2311762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd610f715416144809ed89d4b33a4059c5e1ebccb00ca740badcf26ee7f1f382. 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/QZW9N2256634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00aa1f7008818f0a99ad698624fffd9c1e0c20719b96b1bae065476d0946fd2c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:55Z), 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/QZNJX2347615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0143ba5e6b774d58f14f0adacf52a0edb0e884ef97cdbd0a3a6c29d32da3092b. 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/QZNJY2594325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb083f6610435bb68dd3f2846234e995e8aeaacd9793ba4954b47dbf92ac43bdd. 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/QZGLM2165928.
Os Melhores Funks da Furacão 2000, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6114218a62abd07e4c14e1d6a90ef3bcebc412fd0a09909527141371edf07ef3. 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/BRFUP0300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cdeab6572c3df91c0d2d3e9ebf3a557d971e66be38f5eff2109135c0b94727. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BRFUP0800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3337b7edf98cb20713e02c361fc795f9930b81b5d935f7d3607bd73baf71ff96. 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/US7VG1464340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c43025bd99dfabf9a16db87abfc29d4b77f8c1af693c12b7b5b9beef9a851e. 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/BRROX1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622e23311aaf2f405c2be2bfe75af37c56735ecfe2a8e404cd3af628b8e7107d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:58:54Z), 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/BC6M22407855.
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 0x48b42dbf9ac2055fed8ee831d0f78c5fac2dcad2022759f1124220b41e46c62a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRLRE0700190.