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 0x07c846cf2cc14a70a0b5276492e5631f3e0de8b9ab058acd1997dc91d65f9eb1. 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/f6cfe8ef-781b-42b6-937a-6a1917658d2f.json and https://artists.proofprofile.net/proofs/artist/f6cfe8ef-781b-42b6-937a-6a1917658d2f.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 0xb2ffd4c5e16806929f0e73fbb5bd8759100b89c110c47be1227c98de388f3e31. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:38:53Z), 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/BRRPG0300966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bc020340737e833bfdf8f84f0981626f47593d049120c3dc79f34d266a9130. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/BRRPG0300970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d961d31072a81b68a040a3d4705f0e485332bc438ffbd3c7fec41cdceb5174a. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:01:43Z), 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/BRRPG0300971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c9b46c098035371fd0da0e20f93cd19d5d4848a2030e6d4533d17d2a6e030f. 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/BRRPG0300972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d281a69031c39e1991301981a969edadce5aad76f1b2037ea3ff7f524d5091f. 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/QZZ662321000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4362369b3c8496b22b398bc6b852c0e6991675699c95b964e742583d9ca76f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/BRMKP0100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b3edc1f7f1dbab0bd2fe34c8c868270a1d3798d4ca47ae6375d29c5773ebdb. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/BRMKP0100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd347de34170dfe9e50d3832d5dc7737e061d32dc28a8dd2a03fbdb5bef31f54. 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/BRMKP0100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee39980fabbf057f7a69a8e3d6051101ab74824ecffca4da27341484ee15c37. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:28:21Z), 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/BRMKP0100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968e849386d6cbb4c8812504dc56b7eafeca31fab0a752379845137057377cd1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/BRMKP0100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8926f01c2e2268aa1bee4946723ad47d001b26736b893ad4caee09f20e510e. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/BRMKP0100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa013a7f03a9ef83d4ce73c3ba584193a7d0fba52b1487c82ab4b1a791874fab8. 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/BRMKP0100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f50e518694eacb3e0526cbd72b5734cf503149bd104ff01d0883167cf59ca7b. 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/BRMKP0600363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623cd336b91497dae05e2ec120566cb918ecf618364245f02c54fb8e5a092f18. 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/BRMKP0600365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7530775508fb12bb49d8ffc7f8fa0c8b82b74289b84025d4e62af43bc4ef10. 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/BRMKP0600369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ac780a44751e3e6be133caa7c14daad67504b26fc5a0eaabc79b46cc381f5a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BRMKP0600371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16779a1f9c68740364b34a47297ee8173ba60093cd7524341f92babcee9dbce4. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BRMKP0600372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf46dc0f7ffbceebde13c0e79cb3d967ca0d7c54f8cdf18d3063e4946810574. 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/BRMKP0600373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1710d97919f042a9307f0799766bd53034bd156745380019f8611e580561d643. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BRMKP0601254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54f71126f2a2e5a4e1aa951a6b6e57b99185c3a7bfee857db9131e0fbb4c1c9. 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/BRMKP0601256.
Explosão de Louvor - Collection (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da7c6b49c5be25c313c7e3060998688b12ccef120957305bec1fb0aaf669f45. 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/BRMKP0700294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcfaa2b5e2b10278c4dff8dfb47b51c12a0a92a1f83f74d2d7f18dc1ddfd238. 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/BRMKP0700295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308823428e81368e3bee4e65f56581de611aa0d07143692fcc975287349fa777. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:02:33Z), 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/BRMKP0600367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a72a4374b3968ef1dc9aa9cd233d960cdd94d40ee5901bb8b09f5b89f71de41. 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/BRMKP0700292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa71f4cfc8b81356345a6da82f6add107e054624e18f433a699b3b862667432. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/BRMKP0900226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a4bc33553b3a41b0d19885c7650a335c99eaf142e9c572ba31050932f5e226. 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/BRMKP0900227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652ed4b18a6b939f0e1c2c8daecfd2a63fc5828613fcebce0d6751078a909fc1. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:28:27Z), 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/BRMKP0900229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa11343a891add6e3405916f1138fbf35a7a028749ca5cfb2cd8c3f8028a7154. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BRMKP0900232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b0284fc6c7e42a983255cc0c45ff003eae4f40216a2686f08c8af7d211f302. 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/BRMKP0600364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c7661449862ad1d38858cf6e22ea61c9a5027c82ffbae6c989f54712fec1b7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZ5AB1918327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7e88c27173c3011f1c6d05d537099da1c33885764ce6ca95da1eedd6095428. 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/QZ5AB1918328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd9c158a1562606a448e3c747ac4bcdd1d0099698c5779c6784f5e06a1d3cdf. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:42:50Z), 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/QZ5AB1918336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124fd2784370fb39718461a4ddaac487a37b4aea11c7b6b216a928fd5659cb8b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZHZ32021039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce85bb40aca5ad9d5c2c18269260048a8fba5a2bc6c521829e59a39339fbcbc. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:34:01Z), 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/BRAGX2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38b2b174492719eead0d1f0dccdcd097567f19d3294725cfddb166a37b70e0a. 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/BRAGX2300003.
Filho Amado (feat. Nickolas Robert) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cdcc80a43097ae5ab6ccc052c465056179e8c4a5652f747e09f82c5d38fb70. 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/BRAGX2300006.
Em Tua Presença (feat. Ludmila Ferber) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dac41187fef830a23eaf467787af64c968a2f9d2d620fa6ebaf2b14f60ec00. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BRAGX2300012.
A Voz Do Senhor (feat. Bene Gomes) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1365f74269de69dd8c9dae0222ba60916759fc85e8f8bfc3a41c1c5b6a4591. 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/BRAGX2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf026ae9c1ef9bc788092a595b3415cb70f29937bc2b18528a801e5f308231b. 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/BRAGX2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e33fe4e993dd4a8a0a17097c67b708197c47e08822a68d432edf5bb56f0ef12. 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/BRMKP0300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f92da7ac7bea20862f1d46f0d8dae872c15836ff887d5a5b2485ea49e22c93. 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/BRMKP0401006.