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 0x116d32a4d1d0bcd33fc83c90abb7896cae362763b70caa1715ac8dab3e23566a. 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/aedb9709-a0cc-4c26-8516-0c66046c9340.json and https://artists.proofprofile.net/proofs/artist/aedb9709-a0cc-4c26-8516-0c66046c9340.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pulta e Bebedeira (feat. Chicão do Piseiro)
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 0xb98ae4b0988cf88d6007b5b95ff154913380ea5da3eb5fca641e8468f269d673. 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/QZEQU2144641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c914b83a381f122c24c9ffdcbd9ed289d9a1df99506b5bfb4f6dfcbe944e445. 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/QZEQU2144642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c35c54e534569625928247ac69460a05cf6da22d7c0ff53f96d534bfb77374. 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/QZEQU2144645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b09cd2539e29642b886bfb7e258b4d5eacd3f09f37ac0f50488e6acb31ed9bf. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZEQU2144646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4393bdffe9d163dbf5ddee341b8bf77efe89e9b27e5d000e24fcf8cb7925db6. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZEQU2144647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc997025040df8b7d9506109e26903c24a44e06fdf1cd62c741ecb4a5ca4becf7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZEQU2216008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81eb07323a623229686c089c2bca63d23e43cab65c33d7e1768bfdd43bc164a1. 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/QZEQU2251700.
Orelha em Pé Com o Amor (feat. Pisadinha do Vaqueiro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb18589b6e082bb8d6a1656d7e4f261f959c1134ad47eb9eba6a6c884e0aecb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES42F2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525afb1105bb28b84212b919038a4ba2aa9e752afe373cddd3859b2402b7f252. 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/ES42F2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc9f773ad1e365c73006542f783a6da5d7ca3f05295f16b13e0e4da5e44afb0. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/ES42F2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac146d9530918c907a30fe656f8fc0b253daf04eb528f39df995a5873dd2f52. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:19:23Z), 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/ESA112311023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9a512512c69b4b22bc33f89b80ad02ab03c69311c745b20a4a2d98a7833479. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:38:43Z), 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/ESA112314487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac9943c7ac2bb1f62877f7d804e1a33347573b90116c6e291c6ead780ec468d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ESA112314488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7334247509821751463379183e2428dcfa850df0ddbea7ce95ee7595b92c94. 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/ESA112314489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3afa2122debef9319a9f7e22a2a8f3d0793a674db6c1715d45a2525ec322bc. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:47:26Z), 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/ESA112314491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528a14b08f1536484d07366ca40d508997bf88f06fe780b84fdf24c0bf269780. 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/ESA112314493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407a59375c5589abb853fccc62567038b9c403ea9cf7efd418f301ea0260c5e7. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ESA112439267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17e9e0f235bac80583d801393cd9000d93a8b812025b3f867f69851dba5c3c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ESA112439268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edf928343522002d7c5462775cccb425139133d3b290bbf02ef53222b878fa0. 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/ESA112439269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37202d7d991d7c4c75032f1d30524cb18cc1068947f6478428ec67307c037d80. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ESA112439271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8279e0d3784ca3a057894a5cd602a19a27324e8a701b92f9fa6d3ad993e0adb. 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/ESA112443384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bc8756071e9859ef38e4de7f724e0c5f2581e8da40cd94494ad4a8869cda2a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:09:26Z), 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/ESA112559047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda26a1eb47cda54640d48e6b2e6ce03e5147a7042a625b6b03bf45c8d58efc4a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ESA112568765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ad0ba186731fd2468fa3552651ed121f9d0a9d45d0ddd5990ba6de05ecd5e5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:24:35Z), 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/ESA112576645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423ee5a58e7b3a1036abdafac27c9c6a39355b6a6c4f77cfed902dcaca2e42c5. 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/ESA112576646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8e4baf281f6b4955f226eb42c179a3fdb8635869c34cf6d8965944063691ff. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:52:07Z), 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/ESA112576647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13db0e6eba526008aee3d95e08f90c736d8381a39c9c423c0cbacec4ad95ca4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ESA112576648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff87b1ca56bac2415b052ce834b63d328a196697607b96d3c430fdd12f6b9c9. 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/ESA112576649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572ce0dce277342e64d6b0ae724c7ecc8f887e6d4c4a2c742df6be3779ce8672. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:55:56Z), 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/ESA112576650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec379685494eb9d96e56679e8b53098f0e4264711a4ceb1090e1ff357deee450. 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/ESA112583813.