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 0xa91dd3021002962bd3528c1f7e6dfaba1c4ce2f6aa6886bd0c22e596f49320b4. 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/258c0de5-4267-4b36-b8d6-688c8145ab6f.json and https://artists.proofprofile.net/proofs/artist/258c0de5-4267-4b36-b8d6-688c8145ab6f.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 0xa86bf2d4d86c6793c417226b82db7906bd5f70c4d260b9df0b5f8f05273a709e. 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/BRCID9000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9546e08b6cee794d1e170345b84561b873cbea212b1c4207e5044d550ba399. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRCID9500186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7812ae5bb887adaa38888e3b5663825df12f00b27a77bd8e07a5c1247ba944a5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BRCID8600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf33a12f1a38661c3fbe0a03af899ac402fd38e92b3be6e73d6fe854ab9a1a62. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BRCID9700213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2727f1997d00caa8735aa3318e0447314f15923eeab67d823bf72e1a7a03d60d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BRCID9700217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6135b8a0566113490475088dac5fe2d08d755e72eda5ba33ace4798335e36771. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRCID9700226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2727f1997d00caa8735aa3318e0447314f15923eeab67d823bf72e1a7a03d60d. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/BRCID9700217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6135b8a0566113490475088dac5fe2d08d755e72eda5ba33ace4798335e36771. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BRCID9700226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba92b7a10843c006ce396928a78fc556886ac1266edeb43e3067617df15b96b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRCID9900352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a9b35c4ec146c04002e7f8c5a1606be96d6285f7afc5a6855b31b1fbef6f5b. 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/BRCID9200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8211d445b22139f27f6243bb4d51d4a1f31ed280b4acc1654b858965ffccbed9. 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/BRCID8600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d514b03cc29265da64070524b76096260c253df4d44ce0947f18e7f21c33c5e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BRCID9600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab3274c8fed3a77a380ccb868f2cf517d04bae2f09cca6b888b6c2dcde63e1a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BRCID8600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c69e499bfce770ad81e5be1e8c6dec7955f42e5aa52bf3a09ae661e42478c1. 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/BRCID9600087.
Anos Dourados Vol.6 - Tabajara Visita Sinatra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d514b03cc29265da64070524b76096260c253df4d44ce0947f18e7f21c33c5e. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/BRCID9600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3e5292bd62c78f95a336a4fcfa644bf4bd0d982aaffeb2e0e8c81ff085a1eb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BRCID9600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849b084accd82ef92200cb2b7183bf803f7af8396e80fd2b35d42dfefc828c2d. 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/BRCID9600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed80c8eed0fc69678c52d7f66840dc889c4ea9d05c34dbac25fb4e0e1eb7cd35. 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/BRCID9600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3e5292bd62c78f95a336a4fcfa644bf4bd0d982aaffeb2e0e8c81ff085a1eb. 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/BRCID9600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849b084accd82ef92200cb2b7183bf803f7af8396e80fd2b35d42dfefc828c2d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BRCID9600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed80c8eed0fc69678c52d7f66840dc889c4ea9d05c34dbac25fb4e0e1eb7cd35. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRCID9600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d397c9d7e94566a8632bd90aea90902313b35e868ef38625e7563bee21b528. 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/BRCID9200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d397c9d7e94566a8632bd90aea90902313b35e868ef38625e7563bee21b528. 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/BRCID9200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e3c350dd67bbda324a0986a04fdfc26fbc2eb010739b887ff3c80919723397. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:59:35Z), 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/BRCID8600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ec37a3f6812e398479aeb231b09cb3fff2da40de1e85fc0e5c33442e71ad90. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BRCID8600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cc8282e9d1349f1cd5ad39c9e465b45ce057b666d863f6f6ffd874426c4ed7. 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/BRCID8500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e3c350dd67bbda324a0986a04fdfc26fbc2eb010739b887ff3c80919723397. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRCID8600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab3274c8fed3a77a380ccb868f2cf517d04bae2f09cca6b888b6c2dcde63e1a. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/BRCID8600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ec37a3f6812e398479aeb231b09cb3fff2da40de1e85fc0e5c33442e71ad90. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRCID8600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cc8282e9d1349f1cd5ad39c9e465b45ce057b666d863f6f6ffd874426c4ed7. 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/BRCID8500024.
Anos Dourados, Vol. 6 - Tabajara Visita Sinatra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6de77fff3647a9bc874645d605dcd3965ee287e6251f923fc01526aa9e7625. 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/BRCID9500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d397c9d7e94566a8632bd90aea90902313b35e868ef38625e7563bee21b528. 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/BRCID9200106.