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 0x3d3fadbd797c01c21a50506701e6560bdcab7c91f0a2363b4ab5b98b6da311bd. 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/cbb46944-e525-41db-b192-eb459385d8d8.json and https://artists.proofprofile.net/proofs/artist/cbb46944-e525-41db-b192-eb459385d8d8.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 0x366f982b5f0b34824a5708c36473c4c6c0dfe3e6141ed38526c39b44daed8287. 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/BCA5Z2300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a69e159b1db17c9f270751b64e470770f2d5427d63a10b8f63014e62618351. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXSSW2300734.
Perdoa Meus Pecados - Acústico e Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70bede2a99aaa2aad2f6dd2e6113a6627f5c741dfb738a8c2efdb28f031a778. 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/BXSSW2300738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2876581ab6d44a0d432a938db897286d6350a333acf54df84b75914557ae0b1a. 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/BXSSW2300739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7a96300e9b5406bc11cda8ed37ef71cbd1c00828d471cf6e30d047b6322343. 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/BXSSW2300742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59a0b603c3d7be245ad0a303bfe109265fe44f2a4aee17a4f8ddaa3e1e245c3. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BXSSW2300735.
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 0xea24721cb74e8eac0a420daa6c4bb9958930e7209e3d0daaa606a343a0ca4a48. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/BXSSW2300736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae6f208fae1953870fb41f948ee812f99b49896d7f452cd34e0f64cbcf67722. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/BXSSW2300737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323f51b73ab99f8584f9475c637f29e9c9728c058e7c43cdbe320d25ad6177f2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BXSSW2300740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9283f75ef2f259b5162e3e1284cc6716fae222eb967d3c6b86d42a35e18adf6a. 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/BXSSW2300741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fa6118717908be10c49fa8ccac0aededd6b7f008bc68cdbe35bf3eed9fd715. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/BXSSW2300743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd9d30ad3d6a75d4135972b5cb406884764884c02b2ffc6df28d115d4b899bb. 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/BKP1M2400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa580a66e8ec05229f3a378363887b1f3eeeeb7c70db32d5dd0b6f9c9f4e05a56. 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/BKP1M2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6b9c19d2f8b4dbd29e94d6104456be209c3f52b1ed254c330cbc085d3a76d4. 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/BKP1M2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c015844d74b537366e0b7d2437e09814a53cd6f7e02aca0f3f9a3b5a53a6a3e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BKP1M2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5263f2686d2934ffdecd7705d03d2f8f30f8870b0b9c2774cfdd8f7e762e811f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEY472470101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642ac0b94f92147a6711be81671dd2a7f9780bd422009508c0fca1874c7bafeb. 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/QZW9M2300887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c102e7953527c3a8aeb5bfef25fbba9a24dc4c6741fd5a4cbdd7a5cce21f623. 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/BCA5Z2300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202ab91b4f87a6fbc89c1efe519e4527ab189b6da7567f6485b5770875b5eec8. 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/BKGP92300617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afe8063b3aaa301b18428b1c441f38e0c020675838e852c2a457819b1a0b18d. 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/BCA5Z2300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2a6fedd097fa34a9ac7b6b3f1072b9870990edd5115957e4c8891f6c0e9a27. 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/BXKG22301245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7591a2e0b5c4521f309c2a912759f3ed971525c2f192e1834e858323aa635587. 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/BKPLG2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186eaea096342c81bd97cc047379e4818ef1910bf7d1836d0009bb737c7775b2. 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/BXKG22301027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8471096d6d6a84e1cc9726c7956db5747ba7f14d5b1ad6213eb0f97f75ddeb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:49:46Z), 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/BCA5Z2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cc7004c2752783a4dbaa329695d76390e372f5baa66272c6183683fd8d859e. 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/BCA5Z2300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88a49472748fdae38dd96d11c5a2aa1efe626643a5bcdec7ab85a554274d8ad. 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/BC3PG2303599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccba9b3e6408daf23466449ffb6cab6351152b5eed2c8a72b2cbb2d6fa47858. 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/BCA5Z2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c8daae16e663faea38e9d7d113a560e5795010892ac9a396f27cadad3eb72c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:07:26Z), 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/BXKG22300388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37dc85cec282ed12816f14ea779b58e4b942efac6c564dbbcd6a53d8010e3bc. 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/BCA5Z2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2893c80c22c55ee824fada7b40a623acd81c810339024d0fe413ed15f75b9b42. 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/BC1GL2310949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf546c1a81c13cffa748fe69097b008d79a458088453fd3586f869ddcca82228e. 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/BCA5Z2200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a0c0a2676a02b66096c0f8216a035dcdb44a21732364dd3239f320b84bb717. 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/BXKG22201073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8396b0a8cdc0c98cb6432d8ad5ce9cf89793f8718e9ca212af52ed07264a024a. 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/BXKG22101516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbab1c9a6cc5cbe413f6589c69f966940e746cf133b20c4bdf6f72473937a9dd. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BXKG22200631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475cefffc905c7a0ea6d720db1875c72138a4232c6afd7c3d1f9f4d2215a1ec9. 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/BXKG22200456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf382e9700537be0c006b9e45c847f489c6bba3ea8fcf4cc051606bc213b97c8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BXKG22301294.