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 0xa23a144db2094fd166c0980c60628247e14d87da3614b00e1124b4b41e221acd. 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/3d929572-a611-4881-add9-382ef949e7b2.json and https://artists.proofprofile.net/proofs/artist/3d929572-a611-4881-add9-382ef949e7b2.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 0xcd7b98985a805e9868b98bd75998b576417d1ac019af9751ff9fa23f58b6f547. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZFZ72449177.
a flawed place in the fabric of my heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47de70fecc42737dd66a78918bf6ac00cff9a43e03d35ed31fdb323a590b9cd2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZDA72461572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc007fc0dcad121d9561e5db7db3095149310e8c68dd119692c09150e3b37e462. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:22:52Z), 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/QZES52436258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e1780a6487bb016b486ebd2f058781357578edc52d8fe0b886ba36a10b8356. 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/QZES52436259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2174a6c6115795423eba96773197587d370d50c33159c5016f818c5865254cd9. 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/QZES52436260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77face58dc4189b28660025c1c469f4a1f8264f82ea22b06bcfc1989772ef33. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZES52436261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf599d8748d9c43dc110f7fd024cd260d029f94e4cb90f0927f8b1957ff18cc9c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZES52436262.
i'm the one you want to be with when you're alone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734e3bdfa08d53a7244efd093d07d8c75d3906a310246aca5b8ab55da4df3b39. 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/QZES52436263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9194280de941fc99870eb6363182f0c25543e34885c6d32860099e37a013e1. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:08:56Z), 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/QZES52436264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa581298609230546b88bd1a059a47c8bd7b77cece48e0835519ca68eb0f29c9f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZES52436265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20725b9c03ba095af172167438b2505cee59bb988550acf53bda5f887f37b02b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:37Z), 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/QZHNA2497754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff9c3b408a58d59d4579229f87b53a78513f078fc94390b80a00093c915f91f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:59Z), 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/QZK6H2435511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1df8bb5ad1b9569c0f275fb4761f964d92e67dcc49e0f61d3341a34929867b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFYZ2520613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0de117c12b27034f52f57320a73f77f457612ef9ffcaed43ed56efaca01903. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZK6G2522761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29fe7d553679082f95c62c3281acf3a124e4716714b84220273ca8a086f74a8. 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/QZNWW2518266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2297e0761fb806debf78acbab8a7168bd6ac415d473ddb15613ddd5ad62f397c. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZS632414770.