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 0x549d81a1a844e3ffba4aa5772d8009742208382940d56d02c2734ffae146d758. 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/51d2aa83-8c08-464f-87e7-5a6468d1e2bf.json and https://artists.proofprofile.net/proofs/artist/51d2aa83-8c08-464f-87e7-5a6468d1e2bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Is There Still Anything That Love Can Do
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 0xd78df5491a61c96da85dea572e522170b98ff23afac8263235c27d0f351221ec. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GX5MY2254142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798ed05c54339c178d708c95c6f2236688bea65cd10d50aeced5a1aaa6c0e582. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBSMU0125312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf240239ab4920c25f35caa608737c30c087d9daee60b6871319c80662669134. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/GX89G2207374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d391b8c5cde997bde44400c417fbd42cb0d63d689dbba64b997f821fdda307. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/GX8LD2242917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d391b8c5cde997bde44400c417fbd42cb0d63d689dbba64b997f821fdda307. 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/GX8LD2242917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ad21d7ec6d989650d633cc7d8a5f2d94e6b80fea56585dc17879b95bbf19b0. 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/GX8KD2319048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d17545d00d7e4045320b1d556a6b3909333edea56fb5faf58e1d20424e570a. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/GX8KD2375184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8c8bbf4da7b4b9a53573f9333d9715af0d59870b33eb92a4e5f57570b5fb91. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GX8KD2350104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2bdf680a5fa013981df25d659b1c0c4d87d419b4511aa9374d543ee979ef1b. 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/GX8KD2347096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610794d8cd8d9d1c04564cfa76f55207433d53d5f83b36f0bd178377dab49c49. 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/GX8KD2351553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610794d8cd8d9d1c04564cfa76f55207433d53d5f83b36f0bd178377dab49c49. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/GX8KD2351553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af0b30a7f11f45b8845c6bc537690330f9b58d45af8157634170e6ca681bf6d. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GX8LE2333508.
Is There Still Anything That Love Can Do (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee47e0055ae201a06380f5e17f2c67fe17718640351f26540faae6bbaa472482. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GXBDS2476880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532a0a1877edfceb4295e9bf365807b7c2a0b92155314c4b09ae4e947c4858f9. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GXBDS2479059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc287cb83ec5d3216ddcdb5bf102dcf6f8bdc915f5839ca9ae0dfde210f71a510. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/GXBDS2422167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9fef365b3f1ff78d33a2c0ae67f1a43a85c2f67d0d90df6b526ccffeefce0c. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/GXBDS2432275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabde9250c075631d53bff88de38af4f5fb80996a253c1e9d8e73f3ccbd8aeb2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GXBDS2431932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1fd8936ce1ec347675e80b2f0d2de9f8035f25fe5665b2c3070703c6f5a581. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GXBDS2447255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e12239dce385cb1c25823bf80ce8e95db4b1b163c938bd50d0044e72216232. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX5MY2442885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8932fbab6f32bea571835e9cdccff2954d7a9c0b8c6809f6131a57328e607ec8. 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/GX8KD2558511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aada3ab0d6d929b5964006d6f41a908d55547ed1cfe4eb6446fcd1c46823aef. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QT3EZ2514900.