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 0x3513616aa062e6564402ff3ac894860680f534c56e9a777981997db757e9b5d3. 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/19ae036e-c871-486c-b16a-b2fd79f5b687.json and https://artists.proofprofile.net/proofs/artist/19ae036e-c871-486c-b16a-b2fd79f5b687.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 0xa1f9bdacf1d0f79ff1df51167f9266e2e662b84bb120ba5279c7ddb2b418e41f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BKRRW2200005.
Espuma da Cerveja / Quem Será / O Grande Amor da Minha Vida - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9d19256ec27b62d3307dfa3c031dcca3026243d9846a6970aead2c730917a7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BKRRW2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695575567cb17ed273ace281badcf29a31298d03618ab3c1d9768db945ea17cb. 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/BKRRW2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9911e03b5abab8d552558fc3768394cd7acc1336218d82ca7a91f68630b3db3. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/BKRRW2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523f8bd23a8a4b4166e40eeae2a00c01ce08bedb5df4da8abc4c7dac1f699f86. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BKRRW2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea34e572806cf7e160484a96175bc71adf456f57b0291ff79452be338e68643. 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/BKRRW2200010.
Amor de Violeiro / Me Apaixonei / Coração Aberto - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad7e4b2b2649d1857cc4d672f9ac9b4f8319141709b7e34c60c3d7e7da147fc. 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/BKRRW2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac627bd493aa8c69aa97ea11c5bd2bc2bce59e4da2f7acf90515f6af0bc4ebb. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BKRRW2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51a7a3a2199ce68075a91872fefb9250b8fa9c508c8fcac6971128c1e504325. 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/BKRRW2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac925929545c2193d7f3c9315bf25114ad458145f7ab5dc7f06a6121c1b4ba8. Chain 2 (Bitcoin): anchored in block 956995 (2026-07-07T04:27:57Z), 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/BRCJF1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c24864f30deacdc2ac2cc85d2a46fbeadc16b54fef22db8389cbabab005c60. 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/BRCJF1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25e9820d701c528e9340ada92607b95fac67a53c6a5d6b3ccbd76414536f8e9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRCJF1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af85d0b914c6ce1aa5ec93623dc3e1622253b75e089dc54449885a731ce7f30. 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/BRCJF1400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b9f94ac499237d1da805bf35c2fb6d41e43e5c7ea21a193ba48ba89b35974e. 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/BRCJF1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460ecae35e605382c12353d4846b518e31a7465d6dba264fcde24751de9b9a9d. 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/BRCJF1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbdbdce07a9397f29fb9c02333cbde1d1f8ceef5b87bcc964348cc49c57c15a. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/BRCJF1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80480df162701f232253aa5ccfd9e1032900233b5987e336ea679815ef7c69b9. 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/BRCJF1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2c8036f9fc543dcedc8ee56015368eef9e17acd5e5e6fe1a6ff74ae234c843. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/BRCJF1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48985814b80e088ba6e5073254926f3ae24a329830ef2c35233e9afdba2342b8. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BRCJF1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb4c233919a7bd3e8c085eaed95e335530160667a76b3b810e8ed42084dd007. 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/BRCJF1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558af1bee10bf6268b4de7c259d72f92e0dd59795153803d8328b72db1d1c7fd. 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/BRCJF1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7be8acb6b11ca54efb83453d3b0b4c94a036e04c3ac8a2fd1c762b7250ba3f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BRCJF1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55568ebb02e11118548083f67b8ee030bbf9f1ce1cd759d2a9e678af816f4c7. 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/BKRRW2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3f187a9d4bd4252eaa7654958491cbe9825a8544f86c96443d3805d7bbc0a5. 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/BKRRW2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be51981b53ccdb9e7efb9b26267d9822a7ae562a0dc9627c678ddb35d0ace96. 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/QZGLS2399757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0109827995d9756569cc9cb6612f2666167407f9ff20e71c8b1f5772dba048. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/BXBQV1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403a10fe4d2cdb36f03c1af2b30ffb411e39cc274a4b685fa44ba07a9a953de6. 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/BXBQV1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5bdc8b6ac57fd94c5461ede266ab92672c93442b2e7c9069464916d6d184f7. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/BXBQV1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713063e25b988943a8437cb64050ede0638a43c0fe29ad7739c02d9e7bf9bc49. 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/BXBQV1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c8d014c7a951f39cad39f1783c62e3380f877be64811fadb2bfbd2e0763667. 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/BXNT61600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7355b5f9b6195397b03e047d50432bcd0d5933e60b093e89dd16bdcd8e6f7347. 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/BXNT61600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b5d5a0e7afb4aeae0cf7495ae5c08c044a815f5e351cf8830ffb210a870969. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BXNT61600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e6e6739944702382a36932f9282621caced9b4745c69fe6819733c7a4254c1. 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/BXNT61600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60792aac3cab63f0f9c2b47bff4a051dc84db565ccbb0a5433e591d953f1983. 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/BRCJF1500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9112ffcded0234ef9d98a6d308570bbfedc59e886cdb38376ba7902f42529c. 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/BXNT61600001.