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 0xbf55cf6d2076979f2361399b48726eb9000acf3318e1da0bc3b0550448a04143. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b2c366b-1ca6-48fb-ad66-b2d211ff64bd.json and https://artists.proofprofile.net/proofs/artist/2b2c366b-1ca6-48fb-ad66-b2d211ff64bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Procedência - Apegos e Anseios do Meu Canto
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 0xb1733c07c137cb710fa65823cd374c41444077403b162aeed988d93c25d7370f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRACT0400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf501d62a5e979a713a053c329c5dfbbe2959d85e9e664a22725923e90cd6790d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRACT0400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b9bf168451ff7a07340d2fab7cef7fd240d16d623ea467ce6f315ece5748a2. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/BRACT0400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d87c8a85f9d206baaa4d9e4fd11289a04d5fdb8201ea8f58dc69fcc68a1c57. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRACT0400227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d400c895fd7bd311acec9462faa96199490dc0ca2820493e543e33d54d8e085. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:42:56Z), 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/BRACT0400228.
César Oliveira Canta Anomar Danúbio Vieira - Lá Na Fronteira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33a90b09c4d4d03670d29de0efd83f219389d78d9533044f317fb7648448524. 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/BRACT0700998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d0b4dd389badd18e8f639060e7e5c6b07bdbdfa0b53442af8a822eb44262ef. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/BRACT0701003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c06e794bfc60a79c4a5c5f11689f89a3668cbdc6a25e792ff0e5f5b6793f53c. 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/BRACT0700963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe614178e7c8d6b31089a2ffd5661943f14c83951e267d631d70d6c834154c968. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRACT0700971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce06007a442d50e282c719028abe62974d8c8008f368c4be3d88226cc505570. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRACT0700973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f50bae49f0c952d91dbee3f98588467d5eb7704f21afa606ed99ec8ee9e586. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRACT0700948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e81ad9baf54f579255dae11d9b482d4010817e66333d75aeb4189d04cf357d5. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/BRACT0700957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f94d717f5cff6a11085cfee1878b29ea38ce05e19dc4d61113d3b7ed738baf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRUSA1702265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789e953dcf5241d9441c279a1daf43d48760c11d07f4fc9a6c917022f64b48f8. 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/BRACT1600412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e455a714e10a0cf3280d826af529c65c01d6b4edb021a6c74271b5810e826c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRUSA0301105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f5aa361842bdc3a2ed37936b8ee94d945161a1b16d4f1471b9ac88b01e9c93. 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/BRACT0300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e455a714e10a0cf3280d826af529c65c01d6b4edb021a6c74271b5810e826c. 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/BRUSA0301105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa032ddaf61583261418361b0b62bf3b21f80d319af8205553e071fe98a4e38fa. 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/BRUSA0300891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c1a2fba993a71ce267884f2212208fe09a1c002ecbffe01f58837d22fd1975. 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/BRUSA0501115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4415a916cb181bd20c561d8474270fec4b3d67fa14c0383e2136eba82566b26. 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/BRACT0900330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883d57b26a25fdebb0c21b9c1a8d67619f27e8e8395f275842d7289d7f50675a. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/BRDI51501360.
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
32ª Califórnia da Canção Nativa do RS (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bc4803aae12849bb3d769e6e23dafaf81a6b57e10cecf82ec07452d2b8d192. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRUSA0300733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b27cb7784f129b03161d02dc71c7a92ff1f729ee31a761d121abc90bbc03de6. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BR2EP2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207fb7f5282c2e9eb94d92b41942df0f7a30e57070854e824d0a6d844b511015. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BXDTM2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cbbde10189d645be5b6b6bf409b87ab0bd6c20f733c1ddad9379569b5c7fef. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRTMV1600315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a8f10d722ea9c331ad1f8235d6e766f10aeb5c52a0c58d5a944e468dd4f9e5. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/BRACT0400223.