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 0x803757d0899ee7909bf481bf7544044f4258d369786c525712f6ebcdfde4b460. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb466956-e44c-4876-89bf-ec700dd58534.json and https://artists.proofprofile.net/proofs/artist/cb466956-e44c-4876-89bf-ec700dd58534.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 0x4060345ca6ff901b6763809842c6d62fd16969e425fa33d964c7006772e51762. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QMZ961125486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919ceb742a68dadc8188023170e2115941281276fbf9c16b294dec50c9d9fac0. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:24:54Z), 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/QMZ961125488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf777cc4002c70fb89d9c5083fbe5825fdd6c7d42ec79c3d17e336e8744eaffe1. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:02:27Z), 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/QMZ961125490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46041ef3f7f4d6ed6dc7b6d6342cc349d8474eff2131fe5df251c95e64ac1f8. 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/QMZ961125491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68afdcbc2e284c7879b0df4b98641f683f8b7ff393a4c81f663af3525053e41f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:49:43Z), 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/QMZ961125259.
Ricardo Ray Introduces Bobby Cruz: A Go-Go-Go
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad55159ff767cd0bbace769abab3d383d973caf05549c6bfd5515910139b54e3. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:58:57Z), 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/QMYW20400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871f93f5c2df8fd6a9d6b9436547d0b460a271a3189e107b9dd90e8e119cb38c. 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/QMYW20400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee96181cb966cc6f4d35516bf1564442515db891252ddb8170e30b8bdec8544. 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/QMYW20400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ffee2201a98e9db02de181a1f3b113cf4e3e4213fd570276ee2c72a52d90cc. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMYW20400261.
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 0x76d40998914f66f86679a8c2fbd5897e28760180a9f78e6587cec6fe1bc19bb1. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QMYW20400263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf209061f84743a3fccf98a43df61f6b76c02338e97bae13d944764807162c7ef. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QMYW20400264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4060314e22de46f1f278921ec707e8cda6a0527cb77d53140d8097a50cdd0a7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMYW20400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343b1e382c1c473a8e7eef7baf0952fb5fc6d14c09e13130c62bfce1c25bc3b2. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QMYW20400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b791a786c8366601a5dc2e233647d80a09b91632472a3b302a3d87972d19fe. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QMYW20400267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf0c7318387aba3f539310f4bf9affd5dd4e90d4644baf675499f2101028983. 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/QMYW20400251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66da781a5eea5a7461738625214ac8138c75cdf35b9c57edc5551bc30777135d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:01:32Z), 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/QMYW20700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb68c5a1fb78caf1801fe6a76d6caa5b391751332154664959293a754e4623dc. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:06:50Z), 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/QMYW20700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb8027c08899fcdded566b452e1dfb503ecf67f955da628b394b1aecc38ae82. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/QMYW20700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70fc52866c8a9789c7f3f7117f88937c024404d7e37fde58aac77c307740370. 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/USMRE0803802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896b8efb2bda90cf4c9a486e21ff57b29b2ea5e4facef37214480c660fdc76ff. 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/USMRE0803881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69161076bc9592f4c4613864e0ce3364c600ac8ffb63b8b189118dd863a4707f. 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/USMRE0803803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bed8f6ef2ddc668a31d4c85a8190f4283b25a10fcff4347992b1976a23fc754. 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/USMRE0803804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab6baac32c0075ff39326736456586cebcc1ff76e3c658fdd91e6fb7141d0c0. 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/USMRE0803805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6817a218bbd6ec2785789d145fc3beb3e2da4b109b7377d01ff0fb93b2938c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USMRE0803801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809551c90f23ef7adb3534a12b619a5433a4ab3978d229f13ec9a4090648c0b4. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/USMRE0803882.