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 0xc3aec1f5920d8728183d7eb080145e26cfc46d4c6dce2d8bada649cacf502c73. 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/14217ccf-db40-4d16-94cb-bc89e68a49ae.json and https://artists.proofprofile.net/proofs/artist/14217ccf-db40-4d16-94cb-bc89e68a49ae.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 0xd4a9673011021fe8bf0cb82341464df5b5a4027f6e545a5cb0d7bd7bec695b13. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/AUMU08100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d5efad39c6534ea80361fbf9668373a40356291900e41004c08ff9942d9002. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/AUMU08300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ee91adec66ed29b054ccb539ee32db07d17543da230078394068e892010902. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/AUMU08300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692e7165592da6b6bdd07850dadc745990cc2da69fa72cbf03fffbc0d13c7bae. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AUMU08300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbe4de1216bf4d31efa737df1228094c085babdd4341786051acd9b9cbedf22. 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/AUMU08500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de1b6a14d806bee46f6f9c42852cead9b9203b4d0fae36f3b01f7a18509480b. 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/AUMU08500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6967f492ad6fa7178911484ad85196fff98a9ee321ee027b3790709f9b4685. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/AUMU08500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cd38779c1faa5b4e159c9f476df167beda2958cc01853d5db778af4f15dd5f. 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/AUMU08500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383f702f4b9cb3f250d5a3136c5b73b5092130bad981ee41a4b7baea44229e7d. 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/AUMU08500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81094edb2e55778f5adfc4dfd5e2a081947a792bf2bbc89b0335ab904b91f1f. 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/AUWA82000310.
Out Of Mind, Out Of Sight (35th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a9673011021fe8bf0cb82341464df5b5a4027f6e545a5cb0d7bd7bec695b13. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/AUMU08100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8de510406ef74df6907ca62a9a380e186ddc76105ba74776fbaa226a156eb57. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/AUMU08100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b520575702e21bdded3ba0f237bfa7ea2153987f70303afa0660a0521175ce. 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/AUMU08600086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0822d94ef9162e6b24bbacac1432d3aef8b597e0fb3ad3147d3b97890d1af30a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/AUMU08600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6288c1cd645a2afa731a5ab6fc673ad2c0f30e8dd9c239035d984b29e332a07e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUMU08500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73ce3179a95ef6f1d8218fa0ce6554c30c7862eb695151540969f79c35f3c8d. 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/AUMU08500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11a333b19025a87c80828e6761c336243895c8825cc9f729ab067590c2aa806. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/AUMU08100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde87cbc9e5751d00a499d242f3c67cdc2a3000badbcfa1f5431829445f8b81a. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBBLY1902360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9207317f0aef6fcf06910d87c6182b89620eb7b52b7d0bb31098a42903e3bd59. 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/AUMU09500101.
Never Mind The S*x P*stols- Here's the Bullocks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccef0d9eec37ec81df39c6c764d8c777ec38b382438a4f357b814524b12f57eb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USGN30600056.