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 0x7723c47ae869c0603779d1ffc6c1225a94204f46f0ae402344b7926047515b1b. 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/2265d480-67a9-49fd-84cd-f831d249e3df.json and https://artists.proofprofile.net/proofs/artist/2265d480-67a9-49fd-84cd-f831d249e3df.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 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 0xece6eaa5dbc7e6ee18978c70f5fe4100593499f604e756eff3e10964623f452f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BCSIU2000229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1305f202fcf7b0743ed5637489878eb386c26ef35e43acf21b63d7a0de8f91df. 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/BX7DY2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0418705af642fc3e2fc6b247a4b3cb868282784f33aaea3cc56246917b2453bd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BR9Z22100107.
Pot-Pourri: Paredão Metralhadora / A Minha Mãe Deixa
Pot-Pourri: Venha Arrochando / Pele Morena / Tudo Azul
Pot-Pourri: Piriponpon / Guitarra Chorona
Pot-Pourri: Muriçoca / Meu Pai É Foda / Pop100
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c9f0e4877c3248694323626d85a9a12a718483ecec8d470ca4e5612e94bc38. 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/BC7TS2200003.
Venha Arrochando / Pele Morena / Tudo Azul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b7b60ea1e331eadf5d51e6cd99cb61f5a850794a07604d71197dfb14b7a73b. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T12:45:27Z), 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/BC7TS2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0cb1f28e22e55e49ceea6f747d41a25369e2cbcd7290f81afa123c1bd9686b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/BC7TS2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e46f406c43ed67db83c781e59dc4ecedd521c0f07806d48dc92c2bc8efcab8. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/BC7TS2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4260569933eb0699a8db4366d28eee60a8b1361579f066599b898b97a56a34f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BC7TS2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a373f95151cf7e14fcc4005ccd78ccd1cc8422819076a54f58c11df2ac595f2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BC7TS2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65df9d0be22ca016cbbceb288c718b14650328f6ca26d5620136d15ba9f3bd97. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/BC7TS2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348db84d2687c6216f600cff44106fef5a70f989bbbec9042c69f73e8f078c30. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BR9Z22400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2347978ad8eb3fc7015d80cbb0d0b36971345cf9b7993205cfb217488d8eb94. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BC7TS2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17203e8134b6a678e814ed0b563321a2d5fbdcf44d0c54237b30cc2364ae1f85. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZW9K2404420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4098681c5d397ca38ac8c103e8c4411166ce9dfd08c7e17d424af7861bfc5a05. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZW9K2404421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4baf5d498fffc5d44d54710a12e741346b8ac177090aeb4a6535d2a290bb152c. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZW9K2404422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a2a13ac98e601165f9c4b33806ef4c37698d08ba4b2c61982ba3bccdf348a0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZW9K2404423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335c0d9daba5306331e482091357e5190be40b15e2f8cba50e6046e64ff51d4a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZW9K2404425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33da2b6070a16cfb839268acfe35fbe5efb004a96276179947e394e0528fb6ea. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZW9K2404426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5785811584da05f17e4a71ace4861760090ad521f5c0e9677952295b60a64ae1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZW9K2404427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59e403125328d36965569f87e2f61560a5202c0bb1a8aacb5c93dd815b26e5a. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QZW9K2404428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b00c29f4cea366e5b54ead9f79f60182d28d3e44e43f3ea69ec5c853b37bc4f. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZGLM2584738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a1bb9f9ff459f69162776bab08b0c904f116816180758e5a5f66a95eaadf14. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZGLM2584739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fb5f21ae654ffb34e9cd15959f672605ff3e1c1a877dc71f3cea14a6d2880a. 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/QZGLM2584741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815fdc659a220cba1a7aa657f443c7ded9d41e54cdef87440d7173295d4264b4. 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/QZGLM2584742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a4c73655804a00338e4a1fe16ace680c444a96873db64056761351994f514f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZGLM2584743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaf9079eb01c86d5377310a6620eeb919e7e4bb21647370b29a8bd656e78f1c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZGLM2584744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0291be6579fa6709dc76b7f554594a91ca8784c38f1f10d5016a4fa5b91d0f45. 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/QZGLM2584745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c5182b114fed9961f9d8c0848d8022f6b8f5a666466a548300efc78beb041f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZGLM2584746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22a994b03e3ee5bc8955b3f0c7d206d9587f7fafa6f71485373ca7d4b763e7f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ILTON2508995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c23dcb9695b20100271f5bbb590716533c3665e16f987781705b699b987bdd. 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/QZGLS2362591.