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 0x972362506554956725113219d6eb6041bd6feb0484c9de85ab2ebaaef50ea416. 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/294e1041-b6ab-4147-9199-40c3be6da994.json and https://artists.proofprofile.net/proofs/artist/294e1041-b6ab-4147-9199-40c3be6da994.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 0x5ac02f94ab60f377a8d25e0ace3bf9082254144b29df5c28952ba81d16b384b6. 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/QM24S2010810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2b97752063975aebfa45b361c03bf7947214b5c46f6c716764519fd4199c31. 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/QZHN42038914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaf64b9840ad1f61ba4a894db243e16b3c02778dff59b1ed88de2f91d59f8fd. 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/USYFZ2413201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7029866097ceb61cd9b88d109d575470fef352f8e36bce13d4f84a1000d6d35. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZS7J2157708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a534571cd4fb81df0783af6ef0f9b35f2dc7590868fbe2e2148ae0ac6bacc4. 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/QZ9JZ1775081.
Mufasa: The Lion King (Original Motion Picture Soundtrack/Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd95d186c1d06db2512422b27721eaa128fd5f0696ac544af9afcf2ca5eb9d7c. 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/USWD12434224.
Mufasa: The Lion King (Original Motion Picture Soundtrack)
Hairspray LIVE! Original Soundtrack of the NBC Television Event
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d2835c7625666bb42fd81afd0ae111093b7b4151dbe33e60b88a3a1d87fab9. 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/USQX91602479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb878389804b9bd5a6723b2ced1b0b13e69e84a7caa003068699d2206c92bde4c. 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/USQX91602480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7744a54041360d92c1f0db33fc048fe01d96da146a13d49c89354964364c001e. 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/USQX91602481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84042af8e6fb85081b08b63358d929729228e43e903d4c893f28edb5bf961b1. 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/USQX91602482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe296812ff7120383bd165c16c94f32654ac293f98191bfac554ea6bd8dd6f735. 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/USQX91602483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcae0f98e96068caf4b90fe92c31fb828ee114bae320c208ca138c4ca51ec41c. 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/USQX91602484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b0f8ce3ea043374c5dc21c1cc3e42633b04222f792ebc9cd9777a5c4a8c878. 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/USQX91602485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87047e56699d1d5b3871b59120becad9f4a56df1c41a9267aebf47d969e41a7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZGWX2047586.