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 0x4f6cf467209954fd742642ccee62f4ddb2423367965bd7e11400e33deb1ea73a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0c1df70-2b0a-4b35-8f9c-5278bf61ccd1.json and https://artists.proofprofile.net/proofs/artist/b0c1df70-2b0a-4b35-8f9c-5278bf61ccd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nome Sobre Todo Nome (Live Session) [Ao Vivo]
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 0xf5500d71fe02a5bbe0f9b8113d7ffed0b3715a417287c64ec33b0405478887fa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BR8FS2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976492e302a700ff2ca774378eee626f605df243c7dfdb6f2e1a5c09a402a0b1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BR8FS2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06aea71f0b3a8343be300e9aaf44589c802f6cc40e39c57589a1553ca50934f. 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/BR8FS2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93252b95b01634f4463ffd9ff54406fc3c80e5e1829970f4919897a4e6c5dd78. 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/BR8FS2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21e1d76225ef7369363e7b3f5225986519a70cfd479704654332312f62da479. 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/BR8FS2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5032effc3a7281cc6622533fcbc81df2ac3a3d6b8f8d914bdc73660d1ea379ac. 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/BR8FS2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48b160b573798a648bd85e61c937b2937997a5f4cf443323e7633445fe6c900. 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/BR8FS1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a448462d07e86d1aba474a4c3044f0259deb97c6bbbd2ca5187cccdf3383de9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BR8FS1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4ca94f09dcf73d5d20963fe6abfc31af57511faf89bade136282a30c93a0e5. 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/BR8FS1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36123bf0028fa6c1c3569e761026b6fb4698498cbfef408e40771378b937aa61. 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/BR8FS1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7953d3c96fcdb16f22c1807c66829ffd91d1ea79e30b7dfa6e4329eb35eef82. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BR8FS1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b03dc9b2d8ff18bebb5790a13daebf9a566c4688db3aad65442d2df3cb01f9. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/BR8FS1900008.
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