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 0xd83deb71dc652876c4e9f67b8866411189985b51c61bfe13460a0b92f71f4648. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e0d7b37-17c8-4767-b2df-fa7bc8c1cff2.json and https://artists.proofprofile.net/proofs/artist/9e0d7b37-17c8-4767-b2df-fa7bc8c1cff2.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 0x44dcabbd042f988242dace22e488b6fd91b873b7543a5e811c7cd1591c1c06f0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR96X1865117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409fd7cc23a4e9c30dd60c2cc1929698fc55a48e9b822003e16ff4714feb4a6d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR96X1865121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7790ecf5c5399d4ccf24633df859e401e3305d26069eef7f326a0de598bc1f8f. 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/FR96X1865122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c0813516fe38c7458a8d53787fda3f100d90830e07761c97972fc9fff181e0. 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/FR96X1865124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd2b1fddb4fb8111c471905084e9f7cebd1df3246427b12e49c84856f38e1f7. 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/BRWMB9805655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9ca8e1c23bd14a638a6c08debd350522c5d7e9f406dc743849b5c3a15eb36e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRWMB9800356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e80ae49b92f923faf341cd7f9cc5422aa33f8baa8c8d293f2f070ad95a744e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRWMB9801141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd2b1fddb4fb8111c471905084e9f7cebd1df3246427b12e49c84856f38e1f7. 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/BRWMB9805655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39d2328855b3f6229179406903527e894285d6fea13282484c3720c69bd36e9. 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/BRWMB9801186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd536d1ea7aee3a9df4c6c3db0a29f99204309c5f52464a0ba55abc339fc61626. 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/BRWMB9801194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ed1beb211bce3b81dfafd02eeb165c9bd11b787e3925dd4478799682f272b3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRWMB9801192.
Protesto do Olodum / Revolta Olodum / Faraó (Divindade do Egito) / Madagascar Olodum /Raça negróide / Ladeira do Pelô - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f3517cb4329605d2abc9e7c8a2b97c6008fb2c17067572be02cd54bda47bcc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRWMB9800965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8386d57a0002c56991f83a9245b79e7472e170c9a5bde75fb55e5185fbbd9837. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/BRWMB9801142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58476094086e867e6ac8d894e95eaa04f80bbcd04d67774fd4ba1506895a956. 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/BRWMB9800353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb402fd5e16f51b850ecaac0fe1f19daaae68385f31e15ea4ade0228b92b3f6b6. 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/BRWMB0100480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155197837208172b67c829a83b5b67044b5527177f1b79432914c3ef59d2fa29. 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/BRWMB9801189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58087f20ad2ca4e49530f2ffdde587d9b7c08093d98d926670eab3a66bb19b14. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BRWMB9703997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbc2d28ee555302d7b4c1ac027a900a68ac546a50862af6c5d7a77c586159fb. 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/BRWMB9800357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bef6413cc302924c91244151c1b1846e0c5971602502e0f500e33410cafb7cc. 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/BRWMB9800362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9ca8e1c23bd14a638a6c08debd350522c5d7e9f406dc743849b5c3a15eb36e. 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/BRWMB9800356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ed1beb211bce3b81dfafd02eeb165c9bd11b787e3925dd4478799682f272b3. 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/BRWMB9801192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b016b46b0ac286b8d55036909814aacc3cfb0f7b5fa492696eb201700bcf2e0. 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/BRWMB9704554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c150bb0dea79cf86e9d46762ee1a997b7f673718cb540044779e6c8bc18f639. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BRWMB0100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd2b1fddb4fb8111c471905084e9f7cebd1df3246427b12e49c84856f38e1f7. 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/BRWMB9805655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0106b4f46723408ccb8ff0c8e32b70a53c54aa8a94de63ab8a11465085186d7. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/BRWMB9701498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58476094086e867e6ac8d894e95eaa04f80bbcd04d67774fd4ba1506895a956. 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/BRWMB9800353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e80ae49b92f923faf341cd7f9cc5422aa33f8baa8c8d293f2f070ad95a744e. 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/BRWMB9801141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddc85562b2ba56a0ef346f24223c5585862ed9737e71f578018aaa6a3c5e350. 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/BRWMB9801152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87122142d0588e371f0df4211ee1849e9b59e23135e9ed0deaa4718e001aa7a. 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/BRWMB0101079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8978a34f673ae32763f52b2abbf114628ef71d8d597b0fbc27442c25ed97c9d1. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRWMB9601002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b444d0518fbd1a74ce0d7a79796aece47a09247679c7fc8cfb5b55d58608522. 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/BRWMB9700858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc335cca39a719a1a3d71bb33b53d556746c0cafdeff5c4106cdf099a079c896. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BRWMB9700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18591688c9df2d2f6a514ccd17ecaa34ab2224ad0ba6cba934d7ff47feef914c. 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/BRWMB9800359.
Os alquimistas estão chegando os alquimistas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc060de504a55d8ab5410331f98149d7b056e4f00434dca0db675f94d34b4315. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRWMB9701937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03f8d400dc3d3e844eff40d6e6b39edc0d1780666bd0c692fd4d9a900c65b80. 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/BRWMB1800296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf56dfc4add0e2bf381914015a8124fc211ce0c8d5c2ac6ed5a5996e69bbd6ed. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRWMB9704558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15a243e60a75de3bf8b297f33fe48581270a4ccb8d267e0834fe6e06e3eb9a7. 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/BRWMB1800481.