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 0x04d0863acacab10dec00d0a9950618e35fee85683d972ea14f9a672c69e1d1d9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29b1b339-8780-4af4-9aba-c9b857c865ad.json and https://artists.proofprofile.net/proofs/artist/29b1b339-8780-4af4-9aba-c9b857c865ad.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd456455afc2493df900ad8119378f5d277bdaf2c15e4a3099ab0b8292224c1c1. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZ5AB1908182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cc24c5198e30c747e96b9c601cc1515a374a7311a7b7dc03eb906a83f55e88. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/BRKO11800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41e2a680b9a3190df58dca4dfe0a654e3d811cd09fa89c448a8cfa3f6d3d592. 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/BRSME1801415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0ff5f1d8ec2c777ad5cb63f3424abcb9349a52e270b436acab42cef368ad64. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/BXG6R2000554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee499f6c2c603fe477c1eabc72a3d465ac52ba30a5fb497541f6c1697640e4a. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T09:59:52Z), 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/BXG6R2001234.
Mc Ruzika no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7616267597656940c26e6e28da4c654152c892cfdec8cc14d7173e88d298490f. 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/BXSSW2300704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b0cec3a6348ce03e3abbd1528550ca3f53fe526f4c487bc549f0c1ac5dbf7d. 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/BXSSW2300705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2466b79da6b0480653ccd1ca56833e8a073658f713ec7771166804dda9246e. 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/BXSSW2300708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62aa7f8001cb403cb407592bd2cb7d4cc0c075e5633c1b876c49540ab0930484. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXSSW2300709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d73ab92a2213bd6bb863f61f41d63e459fe0f202d87ca6f7e7ee44ebca017a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BXSSW2300706.
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 0x1e8624c08485edabbe24885fa7f8cc1ad0c5781cad65500da81c3f28d656bfdf. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/BXSSW2300707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd0d3ece77eddd7a0aa800dfed83bed8adb021b76da8e3b8c59618842e8a181. 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/BXSSW2300710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba8226d8edf0d96bd7f41ed1f9dae88c33e68043ae7489f228a7380cb10193e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BXSSW2300711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4862aeb1450dc9670add7048c0b92094a604ab4e0d6a466efb87897dcff441cf. 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/BX7P32300544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20100dfb98971bc794ea78ea4405a55db4a3f644291ed9fdd629a56d8cc1d66c. 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/QZN882418127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbada3031aaf3b0a04e1428f30dc23e6214b06e341887d854d9f4142f9a925057. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BX7P32301062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89eb4a149400f303fc3d9aa4c6da70bac2539d14936a780d987672810feb7c6. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:47:48Z), 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/BX7P32301048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd13b820896371f3ec5e5bd7545e32dd3499d0fd41083fdaf4cd69214597fc52. 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/BX7P32301049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65f541157e0ab0d0895ce6537e4f6d06e33d9782f99c3ce33a96939369a412a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BX7P32301057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6baa5525638d6e562f6c3ea11a1e3c11569eec661ddc6c4d001c117c516f77b2. 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/BX7P32301059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174d42267b643643878fb942b814dd2f08315e80d737249d6022859ddebdbb70. 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/QZN882549430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f572c4b76acbcd80c5d3e6874a581341cc9e3c86174d3d3ccf62fa0b9759e9. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:53:55Z), 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/BX7P32301137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95548594a6728a655d87ce21c8eebd9ebead58fbcc3d5a2343f8cc7ff6161c2d. 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/BKP1M2400333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48568ada1ed91971a2534d60940e264a38062a4f3396530ff7f901178cd236b. 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/BX7P32301256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5b919ff9c281e1818e6693afe6485341fd27b25cc720f34ed337bdc07325f4. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:40:21Z), 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/BX7P32301315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0234422a43b1f96a7abcdedd21095f7113e1ef1406ba7fb2c810dbfaa751c68. 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/BXKG22101380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619ec5895bbd5fcb37a2afaffb03313cb74a9a80a436a23b795e4eb8e8042421. 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/BX7P32200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de92b5a4efca6ace64ec24b621e9ef8e2f75d5825ca009550edcf3f08a7c42d. 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/BK4442300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f759f30c6083edbc1f70d4c4b001bf478e9cfb1b342b4e9ac54814d14e575. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRAPI2100213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aef641789f2bc714c9eb0415db4df1cde714141b9fac18a31b1525f1bac6bb5. 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/BCV112200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee5414cf376213c842748b7864f23c64984a5060e023200834e713ae9620899. 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/BXIV82165409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa121563821818296c08d9ffce21d97dcaef150f41dd2b54ace2e2e8cc0e1e936. 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/BXKG22101541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb710fc36ef1991c731d0a18e1d4524511a27ee57b32e14a1070244a3cab45135. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BKTC52400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a52be388a040b244a826300bca80168eb92eb417a089f4d72ea584a7fcbe395. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BX7P32300938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a21929d3c6fee28d8bbc386e32a917320127ca30004d7ed6711ab9df327ca2. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BX6W02100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa25a9b8e1541cf8552aa361588d88e4d262ed4e81fccd0b7d227196d5df7a88. 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/BXG6R2400938.