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 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 0xe3f8da735d925eca314594eb693b6bd1cfa855a9bd680fdede3b5f416d59369c. 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/bfa102f4-2c6e-4185-a5c7-60e86bfe2cd2.json and https://artists.proofprofile.net/proofs/artist/bfa102f4-2c6e-4185-a5c7-60e86bfe2cd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amizade Colorida, É QUE A GENTE TRANZA E NUNCA BRIGA
Amizade Colorida, É QUE AGENTE TRANZA E NUNCA BRIGA
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 0x7e5dc8eb1a8b4755e51342648b9b92cbd47578610fe5e54950043869445d2019. 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/BX4IU2310139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3125d28fbd1bf042d65546ddc30af795cdf5137dd3642c0961d98d67688d58. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZW9L2362795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971c07cba8780b9531f32bef2d1fa2c0d1c99b491e635f0f441f956b7ae16999. 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/QZTPX2491637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02dde4f0f27772332f665a3dc8e93604c23b9767d07c71419fdea549f1ac30be. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZTPX2491647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf376a4fa25d9f40e0f579c6799a10c2e8812da7da84f4f4611e8d00bc2518f6f. 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/QZTPX2491640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ceeaed84754bd868c8ad5bacb343bdce7ea5537b8c5488d6d8d9126ab904afe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZW9M2442594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99690e6b9bd1175de2d3d53eb477473458b9516b00fdde132dab0b1b876c1d09. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/BKVXP2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8aea489b671c6bb45d95c9299bc9fd0d8ebd4d6082e18ca9a7c3d089818df2. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZNJW2569161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3935f2b89c0cd05e2ac63bb66f566e242bf129adfdb96f7a9bf219696e8475fd. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZNJW2569162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bcf35e98ae7e471e7ab38b1d1f6f7bcaea5d213c10833e48af9a9db3876ae8. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZNJW2569163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab070e626a810f102889f2729f8a8e7429f5e1323f9ed0de3e11ebbbc4d0af79. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZNJW2569165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26d811af0b3055e3ac6a5ef22516d17bba17bc69405996995a43da68600c65c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZNJZ2550698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e878a2997a44f1a1cb68ecece8049a419701e560dac958a41c0b343dd54d9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNJY2323906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe184e32ab8a84cfca5d5b1a453a83a8dab82436fee8e39f99e823390b423ba. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCWK42300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733d1e89e9de0cbef55854276d50fb7e0c3b884df0aa64e2ce2d026320f17632. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZZ8B2345820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c737ed7bbae029d575f8ec4f9471179cece3cfdaf8f6d9d8a08242313e6da3b. 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/QZW9M2405191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c845d6f736c24cb0eb953e50711b2c40801a8982826487cc43a76fef5e2fd51. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZW9M2405192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa97a971f7b3e8f3a90fa122d7d44c96d58feca08e8f710dd0a65986f2f9402. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZW9M2405193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c136c0f38901466769573048edca5dccb8984f5f4dc39455c94a7f29d359786. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZW9M2405195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60afd0dfd9f9d82da98ce73cf7fe8211f600695e10b9c0671815e3db680ffb71. 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/QZW9M2405194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b14e5ff4bc7ab8c721c534cecf558b6ac410848d901f988000109925f7678c. 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/QZW9M2405196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d88d997f866557eb8c144b0fad4b58baa89a0001bf67c3c66d3c5983af7f408. 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/QZTVM2455109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16274d82fae3d5af8ec1e90e1230e8f04b2819c197212e0b5680e8ad0d94578. 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/QZTVM2455110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94747dd2c888824bd5c4342e455a0134bb83c2a991991a5a97c8dab8d5ec020. 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/QZW9K2467185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe8c76bc01396ff9a032150c6bc006656d5ecb59134135dc60aa01250797abd. 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/QZW9K2467186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217918b108d2a16b9ff446033b1cc8ab651c5e18a4f8827d06b7a651dc272af9. 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/QZW9K2467188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b081d2a2f3c533a5cc50dac7a5f595881403450ce05aa958cdc549f68355a5f. 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/QZW9K2467189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6fa0ad625462806279c62159abf0dfa0c3a0f38f7f54f21a1ca00f0d6cc3f8. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZW9K2467190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494942bae1e8bda1226d02f65d464616335d61603de8b671e2f862c835d3e8e1. 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/QZW9K2467191.